Ported from ATMega328P to STM32F103C8
This commit is contained in:
44
Core/Src/fifo.c
Normal file
44
Core/Src/fifo.c
Normal file
@@ -0,0 +1,44 @@
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#include "fifo.h"
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void FIFO_push(volatile struct FIFO* fifo, uint8_t value) {
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if (fifo->size == FIFO_SIZE) {
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return;
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}
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fifo->size++;
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if (fifo->size > 1) {
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fifo->tail++;
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fifo->tail %= FIFO_SIZE;
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}
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fifo->buffer[fifo->tail] = value;
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}
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uint8_t FIFO_pop(volatile struct FIFO* fifo) {
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if (fifo->size == 0) {
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return 0;
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}
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fifo->size--;
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uint8_t data = fifo->buffer[fifo->head];
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if (fifo->size >= 1) {
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fifo->head++;
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fifo->head %= FIFO_SIZE;
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}
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return data;
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}
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int FIFO_size(volatile struct FIFO* fifo) {
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return fifo->size;
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}
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void FIFO_clear(volatile struct FIFO* fifo) {
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fifo->head = 0;
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fifo->tail = 0;
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fifo->size = 0;
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// We don't need to clear the buffer as we will override it anyway
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}
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252
Core/Src/keyboard.c
Normal file
252
Core/Src/keyboard.c
Normal file
@@ -0,0 +1,252 @@
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#include <stdint.h>
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#include <stdio.h>
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#include "keyboard.h"
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#include "scancode.h"
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#include "fifo.h"
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#include "coroutine.h"
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#include "main.h"
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volatile struct {
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struct FIFO buffer;
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uint8_t sending : 1;
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uint8_t cmd;
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struct {
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uint8_t shift : 1;
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uint8_t caps_lock : 1;
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uint8_t ctrl : 1;
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} modifier;
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uint8_t released : 1;
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} keyboard = {0};
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// Send a command to the keyboard (THIS BLOCKS)
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void send_keyboard_cmd(uint8_t value) {
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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// Pull clock low
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GPIO_InitStruct.Pin = KEYBOARD_CLK_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStruct.Pull = GPIO_PULLDOWN;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
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HAL_GPIO_Init(KEYBOARD_CLK_GPIO_Port, &GPIO_InitStruct);
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HAL_Delay(1);
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// Pull data low
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GPIO_InitStruct.Pin = KEYBOARD_DATA_Pin;
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HAL_GPIO_Init(KEYBOARD_DATA_GPIO_Port, &GPIO_InitStruct);
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// Release clock
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GPIO_InitStruct.Pin = KEYBOARD_CLK_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(KEYBOARD_CLK_GPIO_Port, &GPIO_InitStruct);
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keyboard.sending = 1;
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keyboard.cmd = value;
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while (keyboard.sending) {};
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}
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// Add keyboard command to the queue
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void queue_keyboard_cmd(uint8_t value) {
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FIFO_push(&keyboard.buffer, value);
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}
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// Send queued command
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void send_keyboard_cmd_queue() {
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while (FIFO_size(&keyboard.buffer)) {
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send_keyboard_cmd(FIFO_pop(&keyboard.buffer));
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}
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}
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// Calculate parity
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uint8_t parity(uint8_t value) {
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value ^= value >> 4;
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value ^= value >> 2;
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value ^= value >> 1;
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return (~value) & 1;
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}
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void process_scancode(uint8_t value, void (*callback)(uint8_t)) {
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switch (value) {
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// Left and right shift
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case 18:
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case 89:
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keyboard.modifier.shift = !keyboard.released;
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keyboard.released = 0;
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break;
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// Caps lock
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case 0x58:
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if (!keyboard.released) {
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keyboard.modifier.caps_lock = !keyboard.modifier.caps_lock;
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queue_keyboard_cmd(0xED);
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queue_keyboard_cmd(keyboard.modifier.caps_lock << 2);
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}
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keyboard.released = 0;
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break;
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// Left ctrl
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case 0x14:
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keyboard.modifier.ctrl = !keyboard.released;
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keyboard.released = 0;
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break;
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case 240:
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keyboard.released = 1;
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break;
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default:
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if (!keyboard.released) {
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char c = convert_scancode(keyboard.modifier.shift, value & 127);
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if (keyboard.modifier.caps_lock && !keyboard.modifier.shift && c >= 'a' && c <= 'z') {
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c -= 0x20;
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}
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if (keyboard.modifier.ctrl) {
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switch (c) {
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case 'c':
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c = 0x03;
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break;
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case 'e':
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c = 0x05;
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break;
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case 'p':
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c = 0x10;
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break;
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case 'r':
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c = 0x12;
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break;
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case 's':
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c = 0x13;
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break;
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case 'u':
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c = 0x15;
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break;
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case 'x':
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c = 0x18;
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break;
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case 'z':
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c = 0x1A;
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break;
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default:
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c = 0x00;
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break;
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}
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}
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if (c) {
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callback(c);
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}
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}
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keyboard.released = 0;
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break;
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}
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}
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void receive_scancode_bit(void (*callback)(uint8_t)) {
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uint8_t in = HAL_GPIO_ReadPin(KEYBOARD_DATA_GPIO_Port, KEYBOARD_DATA_Pin) == GPIO_PIN_SET;
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CO_BEGIN;
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// Check that the first bit is 0
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if (in != 0) {
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CO_BREAK;
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}
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CO_YIELD;
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static uint8_t value;
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value = 0;
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static int i = 0;
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for (i = 0; i < 8; ++i) {
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value |= in << i;
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CO_YIELD;
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}
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// Check the parity
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if (in != parity(value)) {
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CO_BREAK;
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}
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CO_YIELD;
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// Check that the last bit is 1
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if (in != 1) {
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CO_BREAK;
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}
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process_scancode(value, callback);
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CO_END;
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}
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void send_cmd_bit() {
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CO_BEGIN;
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static int i;
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for (i = 0; i < 8; ++i) {
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// Send bit
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if ((keyboard.cmd >> i) & 1) {
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HAL_GPIO_WritePin(KEYBOARD_DATA_GPIO_Port, KEYBOARD_DATA_Pin, GPIO_PIN_SET);
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} else {
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HAL_GPIO_WritePin(KEYBOARD_DATA_GPIO_Port, KEYBOARD_DATA_Pin, GPIO_PIN_RESET);
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}
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CO_YIELD;
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}
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// Send parity
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if (parity(keyboard.cmd)) {
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HAL_GPIO_WritePin(KEYBOARD_DATA_GPIO_Port, KEYBOARD_DATA_Pin, GPIO_PIN_SET);
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} else {
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HAL_GPIO_WritePin(KEYBOARD_DATA_GPIO_Port, KEYBOARD_DATA_Pin, GPIO_PIN_RESET);
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}
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CO_YIELD;
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// Release data line
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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HAL_GPIO_DeInit(KEYBOARD_DATA_GPIO_Port, KEYBOARD_DATA_Pin);
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GPIO_InitStruct.Pin = KEYBOARD_DATA_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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HAL_GPIO_Init(KEYBOARD_DATA_GPIO_Port, &GPIO_InitStruct);
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CO_YIELD;
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// Wait for data to go low as ack
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while (HAL_GPIO_ReadPin(KEYBOARD_DATA_GPIO_Port, KEYBOARD_DATA_Pin) == GPIO_PIN_SET) {
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CO_YIELD;
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}
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keyboard.sending = 0;
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CO_END;
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}
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void keyboard_interrupt(void (*callback)(uint8_t)) {
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uint8_t clk_state = HAL_GPIO_ReadPin(KEYBOARD_CLK_GPIO_Port, KEYBOARD_CLK_Pin) == GPIO_PIN_SET;
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if (!keyboard.sending && clk_state) {
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receive_scancode_bit(callback);
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}
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if (keyboard.sending && !clk_state) {
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send_cmd_bit();
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}
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}
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482
Core/Src/main.c
Normal file
482
Core/Src/main.c
Normal file
@@ -0,0 +1,482 @@
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/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file : main.c
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* @brief : Main program body
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******************************************************************************
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* @attention
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*
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* <h2><center>© Copyright (c) 2021 STMicroelectronics.
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* All rights reserved.</center></h2>
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*
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* This software component is licensed by ST under BSD 3-Clause license,
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* the "License"; You may not use this file except in compliance with the
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* License. You may obtain a copy of the License at:
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* opensource.org/licenses/BSD-3-Clause
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/* Private includes ----------------------------------------------------------*/
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/* USER CODE BEGIN Includes */
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#include <errno.h>
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#include <stdint.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include "scancode.h"
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#include "keyboard.h"
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#include "fifo.h"
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#include <stdint.h>
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/* USER CODE END Includes */
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/* Private typedef -----------------------------------------------------------*/
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/* USER CODE BEGIN PTD */
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/* USER CODE END PTD */
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/* Private define ------------------------------------------------------------*/
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/* USER CODE BEGIN PD */
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#define CLK 4
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#define DATA 5
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#define RDY 6
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#define WAIT 7
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#define STDIN_FILENO 0
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#define STDOUT_FILENO 1
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#define STDERR_FILENO 2
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/* USER CODE END PD */
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/* Private macro -------------------------------------------------------------*/
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/* USER CODE BEGIN PM */
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/* USER CODE END PM */
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/* Private variables ---------------------------------------------------------*/
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I2C_HandleTypeDef hi2c1;
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SPI_HandleTypeDef hspi1;
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UART_HandleTypeDef huart1;
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/* USER CODE BEGIN PV */
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volatile struct FIFO buffer;
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uint8_t i2c_data;
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/* USER CODE END PV */
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/* Private function prototypes -----------------------------------------------*/
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void SystemClock_Config(void);
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static void MX_GPIO_Init(void);
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static void MX_I2C1_Init(void);
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||||
static void MX_USART1_UART_Init(void);
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||||
static void MX_SPI1_Init(void);
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/* USER CODE BEGIN PFP */
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||||
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/* USER CODE END PFP */
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||||
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/* Private user code ---------------------------------------------------------*/
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/* USER CODE BEGIN 0 */
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// Clock the value to 74164
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void write_value(uint8_t value) {
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HAL_SPI_Transmit(&hspi1, &value, 1, HAL_MAX_DELAY);
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// Indicate that a byte is waiting
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RDY_GPIO_Port->BSRR = (uint32_t)RDY_Pin << 16u;
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RDY_GPIO_Port->BSRR = RDY_Pin;
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}
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void add_to_queue(uint8_t c) {
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FIFO_push(&buffer, c);
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}
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void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) {
|
||||
if (GPIO_Pin == KEYBOARD_CLK_Pin) {
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keyboard_interrupt(add_to_queue);
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||||
}
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||||
}
|
||||
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||||
// @todo How to install I2C Receive interrupt
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void HAL_I2C_SlaveRxCpltCallback(I2C_HandleTypeDef *hi2c) {
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||||
if (hi2c->Instance == I2C1) {
|
||||
if (i2c_data == 0xFF) {
|
||||
// Reset to bootloader
|
||||
// @todo Make sure we set the conditions to actually go to the bootloader
|
||||
// Not that important for now as we are not going to use the bootloader for now
|
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HAL_NVIC_SystemReset();
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while (1);
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||||
}
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||||
|
||||
FIFO_push(&buffer, i2c_data);
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||||
|
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HAL_I2C_Slave_Receive_IT(&hi2c1, &i2c_data, 1);
|
||||
}
|
||||
}
|
||||
|
||||
int _isatty(int fd) {
|
||||
if (fd >= STDIN_FILENO && fd <= STDERR_FILENO) {
|
||||
return 1;
|
||||
}
|
||||
|
||||
errno = EBADF;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int _write(int fd, char* ptr, int len) {
|
||||
HAL_StatusTypeDef hstatus;
|
||||
|
||||
if (fd >= STDIN_FILENO && fd <= STDERR_FILENO) {
|
||||
hstatus = HAL_UART_Transmit(&huart1, (uint8_t*)ptr, len, HAL_MAX_DELAY);
|
||||
if (hstatus == HAL_OK) {
|
||||
return len;
|
||||
} else {
|
||||
return EIO;
|
||||
}
|
||||
}
|
||||
errno = EBADF;
|
||||
return -1;
|
||||
}
|
||||
|
||||
int _close(int fd) {
|
||||
if (fd >= STDIN_FILENO && fd <= STDERR_FILENO) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
errno = EBADF;
|
||||
return -1;
|
||||
}
|
||||
|
||||
int _lseek(int fd, int ptr, int dir) {
|
||||
(void) fd;
|
||||
(void) ptr;
|
||||
(void) dir;
|
||||
|
||||
errno = EBADF;
|
||||
return -1;
|
||||
}
|
||||
|
||||
int _read(int fd, char* ptr, int len) {
|
||||
HAL_StatusTypeDef hstatus;
|
||||
|
||||
if (fd == STDIN_FILENO) {
|
||||
hstatus = HAL_UART_Receive(&huart1, (uint8_t*)ptr, 1, HAL_MAX_DELAY);
|
||||
if (hstatus == HAL_OK) {
|
||||
return 1;
|
||||
} else {
|
||||
return EIO;
|
||||
}
|
||||
}
|
||||
errno = EBADF;
|
||||
return -1;
|
||||
}
|
||||
|
||||
int _fstat(int fd, struct stat* st) {
|
||||
if (fd >= STDIN_FILENO && fd <= STDERR_FILENO) {
|
||||
st->st_mode = S_IFCHR;
|
||||
return 0;
|
||||
}
|
||||
|
||||
errno = EBADF;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* USER CODE END 0 */
|
||||
|
||||
/**
|
||||
* @brief The application entry point.
|
||||
* @retval int
|
||||
*/
|
||||
int main(void)
|
||||
{
|
||||
/* USER CODE BEGIN 1 */
|
||||
|
||||
/* USER CODE END 1 */
|
||||
|
||||
/* MCU Configuration--------------------------------------------------------*/
|
||||
|
||||
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
|
||||
HAL_Init();
|
||||
|
||||
/* USER CODE BEGIN Init */
|
||||
|
||||
/* USER CODE END Init */
|
||||
|
||||
/* Configure the system clock */
|
||||
SystemClock_Config();
|
||||
|
||||
/* USER CODE BEGIN SysInit */
|
||||
|
||||
/* USER CODE END SysInit */
|
||||
|
||||
/* Initialize all configured peripherals */
|
||||
MX_GPIO_Init();
|
||||
MX_I2C1_Init();
|
||||
MX_USART1_UART_Init();
|
||||
MX_SPI1_Init();
|
||||
/* USER CODE BEGIN 2 */
|
||||
setvbuf(stdout, NULL, _IONBF, 0);
|
||||
|
||||
printf("Starting keyboard\n\r");
|
||||
|
||||
FIFO_clear(&buffer);
|
||||
// Reset keyboard
|
||||
send_keyboard_cmd(0xFF);
|
||||
|
||||
// Wait for response from keyboard
|
||||
while(!FIFO_size(&buffer));
|
||||
while(FIFO_size(&buffer)) {
|
||||
printf("0x%X\n\r", FIFO_pop(&buffer));
|
||||
};
|
||||
|
||||
// Set the keyboard repeat rate (and delay)
|
||||
send_keyboard_cmd(0xF3);
|
||||
send_keyboard_cmd(0x00 | (0<<5) | (0<<4));
|
||||
|
||||
// Start receiving I2C
|
||||
HAL_I2C_Slave_Receive_IT(&hi2c1, &i2c_data, 1);
|
||||
|
||||
/* USER CODE END 2 */
|
||||
|
||||
/* Infinite loop */
|
||||
/* USER CODE BEGIN WHILE */
|
||||
while (1)
|
||||
{
|
||||
send_keyboard_cmd_queue();
|
||||
/* */
|
||||
if (FIFO_size(&buffer) && HAL_GPIO_ReadPin(WAIT_GPIO_Port, WAIT_Pin) == GPIO_PIN_RESET) {
|
||||
write_value(FIFO_pop(&buffer));
|
||||
}
|
||||
/* USER CODE END WHILE */
|
||||
|
||||
/* USER CODE BEGIN 3 */
|
||||
}
|
||||
/* USER CODE END 3 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief System Clock Configuration
|
||||
* @retval None
|
||||
*/
|
||||
void SystemClock_Config(void)
|
||||
{
|
||||
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
|
||||
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
|
||||
|
||||
/** Initializes the RCC Oscillators according to the specified parameters
|
||||
* in the RCC_OscInitTypeDef structure.
|
||||
*/
|
||||
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
|
||||
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
|
||||
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
|
||||
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
|
||||
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
/** Initializes the CPU, AHB and APB buses clocks
|
||||
*/
|
||||
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|
||||
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
|
||||
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
|
||||
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
|
||||
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
|
||||
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
|
||||
|
||||
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief I2C1 Initialization Function
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
static void MX_I2C1_Init(void)
|
||||
{
|
||||
|
||||
/* USER CODE BEGIN I2C1_Init 0 */
|
||||
|
||||
/* USER CODE END I2C1_Init 0 */
|
||||
|
||||
/* USER CODE BEGIN I2C1_Init 1 */
|
||||
|
||||
/* USER CODE END I2C1_Init 1 */
|
||||
hi2c1.Instance = I2C1;
|
||||
hi2c1.Init.ClockSpeed = 100000;
|
||||
hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
|
||||
hi2c1.Init.OwnAddress1 = 82;
|
||||
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
|
||||
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
|
||||
hi2c1.Init.OwnAddress2 = 0;
|
||||
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
|
||||
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
|
||||
if (HAL_I2C_Init(&hi2c1) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
/* USER CODE BEGIN I2C1_Init 2 */
|
||||
|
||||
/* USER CODE END I2C1_Init 2 */
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief SPI1 Initialization Function
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
static void MX_SPI1_Init(void)
|
||||
{
|
||||
|
||||
/* USER CODE BEGIN SPI1_Init 0 */
|
||||
|
||||
/* USER CODE END SPI1_Init 0 */
|
||||
|
||||
/* USER CODE BEGIN SPI1_Init 1 */
|
||||
|
||||
/* USER CODE END SPI1_Init 1 */
|
||||
/* SPI1 parameter configuration*/
|
||||
hspi1.Instance = SPI1;
|
||||
hspi1.Init.Mode = SPI_MODE_MASTER;
|
||||
hspi1.Init.Direction = SPI_DIRECTION_2LINES;
|
||||
hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
|
||||
hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
|
||||
hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
|
||||
hspi1.Init.NSS = SPI_NSS_SOFT;
|
||||
hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
|
||||
hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
|
||||
hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
|
||||
hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
|
||||
hspi1.Init.CRCPolynomial = 10;
|
||||
if (HAL_SPI_Init(&hspi1) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
/* USER CODE BEGIN SPI1_Init 2 */
|
||||
|
||||
/* USER CODE END SPI1_Init 2 */
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief USART1 Initialization Function
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
static void MX_USART1_UART_Init(void)
|
||||
{
|
||||
|
||||
/* USER CODE BEGIN USART1_Init 0 */
|
||||
|
||||
/* USER CODE END USART1_Init 0 */
|
||||
|
||||
/* USER CODE BEGIN USART1_Init 1 */
|
||||
|
||||
/* USER CODE END USART1_Init 1 */
|
||||
huart1.Instance = USART1;
|
||||
huart1.Init.BaudRate = 115200;
|
||||
huart1.Init.WordLength = UART_WORDLENGTH_8B;
|
||||
huart1.Init.StopBits = UART_STOPBITS_1;
|
||||
huart1.Init.Parity = UART_PARITY_NONE;
|
||||
huart1.Init.Mode = UART_MODE_TX_RX;
|
||||
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
|
||||
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
|
||||
if (HAL_UART_Init(&huart1) != HAL_OK)
|
||||
{
|
||||
Error_Handler();
|
||||
}
|
||||
/* USER CODE BEGIN USART1_Init 2 */
|
||||
|
||||
/* USER CODE END USART1_Init 2 */
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief GPIO Initialization Function
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
static void MX_GPIO_Init(void)
|
||||
{
|
||||
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
||||
|
||||
/* GPIO Ports Clock Enable */
|
||||
__HAL_RCC_GPIOC_CLK_ENABLE();
|
||||
__HAL_RCC_GPIOD_CLK_ENABLE();
|
||||
__HAL_RCC_GPIOA_CLK_ENABLE();
|
||||
__HAL_RCC_GPIOB_CLK_ENABLE();
|
||||
|
||||
/*Configure GPIO pin Output Level */
|
||||
HAL_GPIO_WritePin(RDY_GPIO_Port, RDY_Pin, GPIO_PIN_SET);
|
||||
|
||||
/*Configure GPIO pin : WAIT_Pin */
|
||||
GPIO_InitStruct.Pin = WAIT_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
|
||||
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
||||
HAL_GPIO_Init(WAIT_GPIO_Port, &GPIO_InitStruct);
|
||||
|
||||
/*Configure GPIO pin : RDY_Pin */
|
||||
GPIO_InitStruct.Pin = RDY_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
|
||||
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
||||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
||||
HAL_GPIO_Init(RDY_GPIO_Port, &GPIO_InitStruct);
|
||||
|
||||
/*Configure GPIO pin : KEYBOARD_CLK_Pin */
|
||||
GPIO_InitStruct.Pin = KEYBOARD_CLK_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
|
||||
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
||||
HAL_GPIO_Init(KEYBOARD_CLK_GPIO_Port, &GPIO_InitStruct);
|
||||
|
||||
/*Configure GPIO pin : KEYBOARD_DATA_Pin */
|
||||
GPIO_InitStruct.Pin = KEYBOARD_DATA_Pin;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
|
||||
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
||||
HAL_GPIO_Init(KEYBOARD_DATA_GPIO_Port, &GPIO_InitStruct);
|
||||
|
||||
/* EXTI interrupt init*/
|
||||
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 0, 0);
|
||||
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
|
||||
|
||||
}
|
||||
|
||||
/* USER CODE BEGIN 4 */
|
||||
|
||||
/* USER CODE END 4 */
|
||||
|
||||
/**
|
||||
* @brief This function is executed in case of error occurrence.
|
||||
* @retval None
|
||||
*/
|
||||
void Error_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN Error_Handler_Debug */
|
||||
/* User can add his own implementation to report the HAL error return state */
|
||||
__disable_irq();
|
||||
while (1)
|
||||
{
|
||||
}
|
||||
/* USER CODE END Error_Handler_Debug */
|
||||
}
|
||||
|
||||
#ifdef USE_FULL_ASSERT
|
||||
/**
|
||||
* @brief Reports the name of the source file and the source line number
|
||||
* where the assert_param error has occurred.
|
||||
* @param file: pointer to the source file name
|
||||
* @param line: assert_param error line source number
|
||||
* @retval None
|
||||
*/
|
||||
void assert_failed(uint8_t *file, uint32_t line)
|
||||
{
|
||||
/* USER CODE BEGIN 6 */
|
||||
/* User can add his own implementation to report the file name and line number,
|
||||
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
|
||||
/* USER CODE END 6 */
|
||||
}
|
||||
#endif /* USE_FULL_ASSERT */
|
||||
|
||||
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||
10
Core/Src/scancode.c
Normal file
10
Core/Src/scancode.c
Normal file
@@ -0,0 +1,10 @@
|
||||
#include "scancode.h"
|
||||
|
||||
char scancode[2][128] = {
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x09,0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x71,0x31,0x00,0x00,0x00,0x7a,0x73,0x61,0x77,0x32,0x00,0x00,0x63,0x78,0x64,0x65,0x34,0x33,0x00,0x00,0x20,0x76,0x66,0x74,0x72,0x35,0x00,0x00,0x6e,0x62,0x68,0x67,0x79,0x36,0x00,0x00,0x00,0x6d,0x6a,0x75,0x37,0x38,0x00,0x00,0x2c,0x6b,0x69,0x6f,0x30,0x39,0x00,0x00,0x2e,0x2f,0x6c,0x3b,0x70,0x2d,0x00,0x00,0x00,0x27,0x00,0x5b,0x3d,0x00,0x00,0x00,0x00,0x0d,0x5d,0x00,0x5c,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x00,0x00,0x31,0x00,0x32,0x37,0x00,0x00,0x00,0x30,0x2e,0x32,0x35,0x36,0x38,0x1b,0x00,0x00,0x2b,0x33,0x2d,0x2a,0x39,0x00,0x00,},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x09,0x7e,0x00,0x00,0x00,0x00,0x00,0x00,0x51,0x21,0x00,0x00,0x00,0x5a,0x53,0x41,0x57,0x40,0x00,0x00,0x43,0x58,0x44,0x45,0x24,0x23,0x00,0x00,0x20,0x56,0x46,0x54,0x52,0x25,0x00,0x00,0x4e,0x42,0x48,0x47,0x59,0x5e,0x00,0x00,0x00,0x4d,0x4a,0x55,0x26,0x2a,0x00,0x00,0x3c,0x4b,0x49,0x4f,0x29,0x28,0x00,0x00,0x3e,0x3f,0x4c,0x3a,0x50,0x5f,0x00,0x00,0x00,0x22,0x00,0x7b,0x2b,0x00,0x00,0x00,0x00,0x0d,0x7d,0x00,0x7c,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x00,0x00,0x31,0x00,0x32,0x37,0x00,0x00,0x00,0x30,0x2e,0x32,0x35,0x36,0x38,0x1b,0x00,0x00,0x2b,0x33,0x2d,0x2a,0x39,0x00,0x00,},
|
||||
};
|
||||
|
||||
uint8_t convert_scancode(uint8_t shift, uint8_t code) {
|
||||
return scancode[shift][code];
|
||||
}
|
||||
294
Core/Src/stm32f1xx_hal_msp.c
Normal file
294
Core/Src/stm32f1xx_hal_msp.c
Normal file
@@ -0,0 +1,294 @@
|
||||
/* USER CODE BEGIN Header */
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file stm32f1xx_hal_msp.c
|
||||
* @brief This file provides code for the MSP Initialization
|
||||
* and de-Initialization codes.
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* <h2><center>© Copyright (c) 2021 STMicroelectronics.
|
||||
* All rights reserved.</center></h2>
|
||||
*
|
||||
* This software component is licensed by ST under BSD 3-Clause license,
|
||||
* the "License"; You may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at:
|
||||
* opensource.org/licenses/BSD-3-Clause
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
/* USER CODE END Header */
|
||||
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "main.h"
|
||||
/* USER CODE BEGIN Includes */
|
||||
|
||||
/* USER CODE END Includes */
|
||||
|
||||
/* Private typedef -----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN TD */
|
||||
|
||||
/* USER CODE END TD */
|
||||
|
||||
/* Private define ------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN Define */
|
||||
|
||||
/* USER CODE END Define */
|
||||
|
||||
/* Private macro -------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN Macro */
|
||||
|
||||
/* USER CODE END Macro */
|
||||
|
||||
/* Private variables ---------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PV */
|
||||
|
||||
/* USER CODE END PV */
|
||||
|
||||
/* Private function prototypes -----------------------------------------------*/
|
||||
/* USER CODE BEGIN PFP */
|
||||
|
||||
/* USER CODE END PFP */
|
||||
|
||||
/* External functions --------------------------------------------------------*/
|
||||
/* USER CODE BEGIN ExternalFunctions */
|
||||
|
||||
/* USER CODE END ExternalFunctions */
|
||||
|
||||
/* USER CODE BEGIN 0 */
|
||||
|
||||
/* USER CODE END 0 */
|
||||
/**
|
||||
* Initializes the Global MSP.
|
||||
*/
|
||||
void HAL_MspInit(void)
|
||||
{
|
||||
/* USER CODE BEGIN MspInit 0 */
|
||||
|
||||
/* USER CODE END MspInit 0 */
|
||||
|
||||
__HAL_RCC_AFIO_CLK_ENABLE();
|
||||
__HAL_RCC_PWR_CLK_ENABLE();
|
||||
|
||||
/* System interrupt init*/
|
||||
|
||||
/** NOJTAG: JTAG-DP Disabled and SW-DP Enabled
|
||||
*/
|
||||
__HAL_AFIO_REMAP_SWJ_NOJTAG();
|
||||
|
||||
/* USER CODE BEGIN MspInit 1 */
|
||||
|
||||
/* USER CODE END MspInit 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief I2C MSP Initialization
|
||||
* This function configures the hardware resources used in this example
|
||||
* @param hi2c: I2C handle pointer
|
||||
* @retval None
|
||||
*/
|
||||
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
|
||||
{
|
||||
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
||||
if(hi2c->Instance==I2C1)
|
||||
{
|
||||
/* USER CODE BEGIN I2C1_MspInit 0 */
|
||||
|
||||
/* USER CODE END I2C1_MspInit 0 */
|
||||
|
||||
__HAL_RCC_GPIOB_CLK_ENABLE();
|
||||
/**I2C1 GPIO Configuration
|
||||
PB6 ------> I2C1_SCL
|
||||
PB7 ------> I2C1_SDA
|
||||
*/
|
||||
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
|
||||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
|
||||
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
|
||||
|
||||
/* Peripheral clock enable */
|
||||
__HAL_RCC_I2C1_CLK_ENABLE();
|
||||
/* I2C1 interrupt Init */
|
||||
HAL_NVIC_SetPriority(I2C1_EV_IRQn, 0, 0);
|
||||
HAL_NVIC_EnableIRQ(I2C1_EV_IRQn);
|
||||
/* USER CODE BEGIN I2C1_MspInit 1 */
|
||||
|
||||
/* USER CODE END I2C1_MspInit 1 */
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief I2C MSP De-Initialization
|
||||
* This function freeze the hardware resources used in this example
|
||||
* @param hi2c: I2C handle pointer
|
||||
* @retval None
|
||||
*/
|
||||
void HAL_I2C_MspDeInit(I2C_HandleTypeDef* hi2c)
|
||||
{
|
||||
if(hi2c->Instance==I2C1)
|
||||
{
|
||||
/* USER CODE BEGIN I2C1_MspDeInit 0 */
|
||||
|
||||
/* USER CODE END I2C1_MspDeInit 0 */
|
||||
/* Peripheral clock disable */
|
||||
__HAL_RCC_I2C1_CLK_DISABLE();
|
||||
|
||||
/**I2C1 GPIO Configuration
|
||||
PB6 ------> I2C1_SCL
|
||||
PB7 ------> I2C1_SDA
|
||||
*/
|
||||
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_6);
|
||||
|
||||
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_7);
|
||||
|
||||
/* I2C1 interrupt DeInit */
|
||||
HAL_NVIC_DisableIRQ(I2C1_EV_IRQn);
|
||||
/* USER CODE BEGIN I2C1_MspDeInit 1 */
|
||||
|
||||
/* USER CODE END I2C1_MspDeInit 1 */
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief SPI MSP Initialization
|
||||
* This function configures the hardware resources used in this example
|
||||
* @param hspi: SPI handle pointer
|
||||
* @retval None
|
||||
*/
|
||||
void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
|
||||
{
|
||||
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
||||
if(hspi->Instance==SPI1)
|
||||
{
|
||||
/* USER CODE BEGIN SPI1_MspInit 0 */
|
||||
|
||||
/* USER CODE END SPI1_MspInit 0 */
|
||||
/* Peripheral clock enable */
|
||||
__HAL_RCC_SPI1_CLK_ENABLE();
|
||||
|
||||
__HAL_RCC_GPIOA_CLK_ENABLE();
|
||||
/**SPI1 GPIO Configuration
|
||||
PA5 ------> SPI1_SCK
|
||||
PA7 ------> SPI1_MOSI
|
||||
*/
|
||||
GPIO_InitStruct.Pin = GPIO_PIN_5|GPIO_PIN_7;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
||||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
|
||||
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
|
||||
|
||||
/* USER CODE BEGIN SPI1_MspInit 1 */
|
||||
|
||||
/* USER CODE END SPI1_MspInit 1 */
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief SPI MSP De-Initialization
|
||||
* This function freeze the hardware resources used in this example
|
||||
* @param hspi: SPI handle pointer
|
||||
* @retval None
|
||||
*/
|
||||
void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi)
|
||||
{
|
||||
if(hspi->Instance==SPI1)
|
||||
{
|
||||
/* USER CODE BEGIN SPI1_MspDeInit 0 */
|
||||
|
||||
/* USER CODE END SPI1_MspDeInit 0 */
|
||||
/* Peripheral clock disable */
|
||||
__HAL_RCC_SPI1_CLK_DISABLE();
|
||||
|
||||
/**SPI1 GPIO Configuration
|
||||
PA5 ------> SPI1_SCK
|
||||
PA7 ------> SPI1_MOSI
|
||||
*/
|
||||
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_5|GPIO_PIN_7);
|
||||
|
||||
/* USER CODE BEGIN SPI1_MspDeInit 1 */
|
||||
|
||||
/* USER CODE END SPI1_MspDeInit 1 */
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief UART MSP Initialization
|
||||
* This function configures the hardware resources used in this example
|
||||
* @param huart: UART handle pointer
|
||||
* @retval None
|
||||
*/
|
||||
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
|
||||
{
|
||||
GPIO_InitTypeDef GPIO_InitStruct = {0};
|
||||
if(huart->Instance==USART1)
|
||||
{
|
||||
/* USER CODE BEGIN USART1_MspInit 0 */
|
||||
|
||||
/* USER CODE END USART1_MspInit 0 */
|
||||
/* Peripheral clock enable */
|
||||
__HAL_RCC_USART1_CLK_ENABLE();
|
||||
|
||||
__HAL_RCC_GPIOA_CLK_ENABLE();
|
||||
/**USART1 GPIO Configuration
|
||||
PA9 ------> USART1_TX
|
||||
PA10 ------> USART1_RX
|
||||
*/
|
||||
GPIO_InitStruct.Pin = GPIO_PIN_9;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
||||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
|
||||
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
|
||||
|
||||
GPIO_InitStruct.Pin = GPIO_PIN_10;
|
||||
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
|
||||
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
||||
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
|
||||
|
||||
/* USART1 interrupt Init */
|
||||
HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
|
||||
HAL_NVIC_EnableIRQ(USART1_IRQn);
|
||||
/* USER CODE BEGIN USART1_MspInit 1 */
|
||||
|
||||
/* USER CODE END USART1_MspInit 1 */
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief UART MSP De-Initialization
|
||||
* This function freeze the hardware resources used in this example
|
||||
* @param huart: UART handle pointer
|
||||
* @retval None
|
||||
*/
|
||||
void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
|
||||
{
|
||||
if(huart->Instance==USART1)
|
||||
{
|
||||
/* USER CODE BEGIN USART1_MspDeInit 0 */
|
||||
|
||||
/* USER CODE END USART1_MspDeInit 0 */
|
||||
/* Peripheral clock disable */
|
||||
__HAL_RCC_USART1_CLK_DISABLE();
|
||||
|
||||
/**USART1 GPIO Configuration
|
||||
PA9 ------> USART1_TX
|
||||
PA10 ------> USART1_RX
|
||||
*/
|
||||
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
|
||||
|
||||
/* USART1 interrupt DeInit */
|
||||
HAL_NVIC_DisableIRQ(USART1_IRQn);
|
||||
/* USER CODE BEGIN USART1_MspDeInit 1 */
|
||||
|
||||
/* USER CODE END USART1_MspDeInit 1 */
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/* USER CODE BEGIN 1 */
|
||||
|
||||
/* USER CODE END 1 */
|
||||
|
||||
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||
248
Core/Src/stm32f1xx_it.c
Normal file
248
Core/Src/stm32f1xx_it.c
Normal file
@@ -0,0 +1,248 @@
|
||||
/* USER CODE BEGIN Header */
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file stm32f1xx_it.c
|
||||
* @brief Interrupt Service Routines.
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* <h2><center>© Copyright (c) 2021 STMicroelectronics.
|
||||
* All rights reserved.</center></h2>
|
||||
*
|
||||
* This software component is licensed by ST under BSD 3-Clause license,
|
||||
* the "License"; You may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at:
|
||||
* opensource.org/licenses/BSD-3-Clause
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
/* USER CODE END Header */
|
||||
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "main.h"
|
||||
#include "stm32f1xx_it.h"
|
||||
/* Private includes ----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN Includes */
|
||||
/* USER CODE END Includes */
|
||||
|
||||
/* Private typedef -----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN TD */
|
||||
|
||||
/* USER CODE END TD */
|
||||
|
||||
/* Private define ------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PD */
|
||||
|
||||
/* USER CODE END PD */
|
||||
|
||||
/* Private macro -------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PM */
|
||||
|
||||
/* USER CODE END PM */
|
||||
|
||||
/* Private variables ---------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PV */
|
||||
|
||||
/* USER CODE END PV */
|
||||
|
||||
/* Private function prototypes -----------------------------------------------*/
|
||||
/* USER CODE BEGIN PFP */
|
||||
|
||||
/* USER CODE END PFP */
|
||||
|
||||
/* Private user code ---------------------------------------------------------*/
|
||||
/* USER CODE BEGIN 0 */
|
||||
|
||||
/* USER CODE END 0 */
|
||||
|
||||
/* External variables --------------------------------------------------------*/
|
||||
extern I2C_HandleTypeDef hi2c1;
|
||||
extern UART_HandleTypeDef huart1;
|
||||
/* USER CODE BEGIN EV */
|
||||
|
||||
/* USER CODE END EV */
|
||||
|
||||
/******************************************************************************/
|
||||
/* Cortex-M3 Processor Interruption and Exception Handlers */
|
||||
/******************************************************************************/
|
||||
/**
|
||||
* @brief This function handles Non maskable interrupt.
|
||||
*/
|
||||
void NMI_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN NonMaskableInt_IRQn 0 */
|
||||
|
||||
/* USER CODE END NonMaskableInt_IRQn 0 */
|
||||
/* USER CODE BEGIN NonMaskableInt_IRQn 1 */
|
||||
while (1)
|
||||
{
|
||||
}
|
||||
/* USER CODE END NonMaskableInt_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Hard fault interrupt.
|
||||
*/
|
||||
void HardFault_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN HardFault_IRQn 0 */
|
||||
|
||||
/* USER CODE END HardFault_IRQn 0 */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE BEGIN W1_HardFault_IRQn 0 */
|
||||
/* USER CODE END W1_HardFault_IRQn 0 */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Memory management fault.
|
||||
*/
|
||||
void MemManage_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN MemoryManagement_IRQn 0 */
|
||||
|
||||
/* USER CODE END MemoryManagement_IRQn 0 */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE BEGIN W1_MemoryManagement_IRQn 0 */
|
||||
/* USER CODE END W1_MemoryManagement_IRQn 0 */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Prefetch fault, memory access fault.
|
||||
*/
|
||||
void BusFault_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN BusFault_IRQn 0 */
|
||||
|
||||
/* USER CODE END BusFault_IRQn 0 */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE BEGIN W1_BusFault_IRQn 0 */
|
||||
/* USER CODE END W1_BusFault_IRQn 0 */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Undefined instruction or illegal state.
|
||||
*/
|
||||
void UsageFault_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN UsageFault_IRQn 0 */
|
||||
|
||||
/* USER CODE END UsageFault_IRQn 0 */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE BEGIN W1_UsageFault_IRQn 0 */
|
||||
/* USER CODE END W1_UsageFault_IRQn 0 */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles System service call via SWI instruction.
|
||||
*/
|
||||
void SVC_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN SVCall_IRQn 0 */
|
||||
|
||||
/* USER CODE END SVCall_IRQn 0 */
|
||||
/* USER CODE BEGIN SVCall_IRQn 1 */
|
||||
|
||||
/* USER CODE END SVCall_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Debug monitor.
|
||||
*/
|
||||
void DebugMon_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN DebugMonitor_IRQn 0 */
|
||||
|
||||
/* USER CODE END DebugMonitor_IRQn 0 */
|
||||
/* USER CODE BEGIN DebugMonitor_IRQn 1 */
|
||||
|
||||
/* USER CODE END DebugMonitor_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Pendable request for system service.
|
||||
*/
|
||||
void PendSV_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN PendSV_IRQn 0 */
|
||||
|
||||
/* USER CODE END PendSV_IRQn 0 */
|
||||
/* USER CODE BEGIN PendSV_IRQn 1 */
|
||||
|
||||
/* USER CODE END PendSV_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles System tick timer.
|
||||
*/
|
||||
void SysTick_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN SysTick_IRQn 0 */
|
||||
|
||||
/* USER CODE END SysTick_IRQn 0 */
|
||||
HAL_IncTick();
|
||||
/* USER CODE BEGIN SysTick_IRQn 1 */
|
||||
|
||||
/* USER CODE END SysTick_IRQn 1 */
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
/* STM32F1xx Peripheral Interrupt Handlers */
|
||||
/* Add here the Interrupt Handlers for the used peripherals. */
|
||||
/* For the available peripheral interrupt handler names, */
|
||||
/* please refer to the startup file (startup_stm32f1xx.s). */
|
||||
/******************************************************************************/
|
||||
|
||||
/**
|
||||
* @brief This function handles I2C1 event interrupt.
|
||||
*/
|
||||
void I2C1_EV_IRQHandler(void)
|
||||
{
|
||||
/* USER CODE BEGIN I2C1_EV_IRQn 0 */
|
||||
|
||||
/* USER CODE END I2C1_EV_IRQn 0 */
|
||||
HAL_I2C_EV_IRQHandler(&hi2c1);
|
||||
/* USER CODE BEGIN I2C1_EV_IRQn 1 */
|
||||
|
||||
/* USER CODE END I2C1_EV_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles USART1 global interrupt.
|
||||
*/
|
||||
void USART1_IRQHandler(void)
|
||||
{
|
||||
/* USER CODE BEGIN USART1_IRQn 0 */
|
||||
|
||||
/* USER CODE END USART1_IRQn 0 */
|
||||
HAL_UART_IRQHandler(&huart1);
|
||||
/* USER CODE BEGIN USART1_IRQn 1 */
|
||||
|
||||
/* USER CODE END USART1_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles EXTI line[15:10] interrupts.
|
||||
*/
|
||||
void EXTI15_10_IRQHandler(void)
|
||||
{
|
||||
/* USER CODE BEGIN EXTI15_10_IRQn 0 */
|
||||
|
||||
/* USER CODE END EXTI15_10_IRQn 0 */
|
||||
HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_13);
|
||||
/* USER CODE BEGIN EXTI15_10_IRQn 1 */
|
||||
|
||||
/* USER CODE END EXTI15_10_IRQn 1 */
|
||||
}
|
||||
|
||||
/* USER CODE BEGIN 1 */
|
||||
|
||||
/* USER CODE END 1 */
|
||||
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||
408
Core/Src/system_stm32f1xx.c
Normal file
408
Core/Src/system_stm32f1xx.c
Normal file
@@ -0,0 +1,408 @@
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file system_stm32f1xx.c
|
||||
* @author MCD Application Team
|
||||
* @brief CMSIS Cortex-M3 Device Peripheral Access Layer System Source File.
|
||||
*
|
||||
* 1. This file provides two functions and one global variable to be called from
|
||||
* user application:
|
||||
* - SystemInit(): Setups the system clock (System clock source, PLL Multiplier
|
||||
* factors, AHB/APBx prescalers and Flash settings).
|
||||
* This function is called at startup just after reset and
|
||||
* before branch to main program. This call is made inside
|
||||
* the "startup_stm32f1xx_xx.s" file.
|
||||
*
|
||||
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
|
||||
* by the user application to setup the SysTick
|
||||
* timer or configure other parameters.
|
||||
*
|
||||
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
|
||||
* be called whenever the core clock is changed
|
||||
* during program execution.
|
||||
*
|
||||
* 2. After each device reset the HSI (8 MHz) is used as system clock source.
|
||||
* Then SystemInit() function is called, in "startup_stm32f1xx_xx.s" file, to
|
||||
* configure the system clock before to branch to main program.
|
||||
*
|
||||
* 4. The default value of HSE crystal is set to 8 MHz (or 25 MHz, depending on
|
||||
* the product used), refer to "HSE_VALUE".
|
||||
* When HSE is used as system clock source, directly or through PLL, and you
|
||||
* are using different crystal you have to adapt the HSE value to your own
|
||||
* configuration.
|
||||
*
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* <h2><center>© Copyright (c) 2017 STMicroelectronics.
|
||||
* All rights reserved.</center></h2>
|
||||
*
|
||||
* This software component is licensed by ST under BSD 3-Clause license,
|
||||
* the "License"; You may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at:
|
||||
* opensource.org/licenses/BSD-3-Clause
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
|
||||
/** @addtogroup CMSIS
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @addtogroup stm32f1xx_system
|
||||
* @{
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_Includes
|
||||
* @{
|
||||
*/
|
||||
|
||||
#include "stm32f1xx.h"
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_TypesDefinitions
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_Defines
|
||||
* @{
|
||||
*/
|
||||
|
||||
#if !defined (HSE_VALUE)
|
||||
#define HSE_VALUE 8000000U /*!< Default value of the External oscillator in Hz.
|
||||
This value can be provided and adapted by the user application. */
|
||||
#endif /* HSE_VALUE */
|
||||
|
||||
#if !defined (HSI_VALUE)
|
||||
#define HSI_VALUE 8000000U /*!< Default value of the Internal oscillator in Hz.
|
||||
This value can be provided and adapted by the user application. */
|
||||
#endif /* HSI_VALUE */
|
||||
|
||||
/*!< Uncomment the following line if you need to use external SRAM */
|
||||
#if defined(STM32F100xE) || defined(STM32F101xE) || defined(STM32F101xG) || defined(STM32F103xE) || defined(STM32F103xG)
|
||||
/* #define DATA_IN_ExtSRAM */
|
||||
#endif /* STM32F100xE || STM32F101xE || STM32F101xG || STM32F103xE || STM32F103xG */
|
||||
|
||||
/* Note: Following vector table addresses must be defined in line with linker
|
||||
configuration. */
|
||||
/*!< Uncomment the following line if you need to relocate the vector table
|
||||
anywhere in Flash or Sram, else the vector table is kept at the automatic
|
||||
remap of boot address selected */
|
||||
/* #define USER_VECT_TAB_ADDRESS */
|
||||
|
||||
#if defined(USER_VECT_TAB_ADDRESS)
|
||||
/*!< Uncomment the following line if you need to relocate your vector Table
|
||||
in Sram else user remap will be done in Flash. */
|
||||
/* #define VECT_TAB_SRAM */
|
||||
#if defined(VECT_TAB_SRAM)
|
||||
#define VECT_TAB_BASE_ADDRESS SRAM_BASE /*!< Vector Table base address field.
|
||||
This value must be a multiple of 0x200. */
|
||||
#define VECT_TAB_OFFSET 0x00000000U /*!< Vector Table base offset field.
|
||||
This value must be a multiple of 0x200. */
|
||||
#else
|
||||
#define VECT_TAB_BASE_ADDRESS FLASH_BASE /*!< Vector Table base address field.
|
||||
This value must be a multiple of 0x200. */
|
||||
#define VECT_TAB_OFFSET 0x00000000U /*!< Vector Table base offset field.
|
||||
This value must be a multiple of 0x200. */
|
||||
#endif /* VECT_TAB_SRAM */
|
||||
#endif /* USER_VECT_TAB_ADDRESS */
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_Macros
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_Variables
|
||||
* @{
|
||||
*/
|
||||
|
||||
/* This variable is updated in three ways:
|
||||
1) by calling CMSIS function SystemCoreClockUpdate()
|
||||
2) by calling HAL API function HAL_RCC_GetHCLKFreq()
|
||||
3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
|
||||
Note: If you use this function to configure the system clock; then there
|
||||
is no need to call the 2 first functions listed above, since SystemCoreClock
|
||||
variable is updated automatically.
|
||||
*/
|
||||
uint32_t SystemCoreClock = 16000000;
|
||||
const uint8_t AHBPrescTable[16U] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
|
||||
const uint8_t APBPrescTable[8U] = {0, 0, 0, 0, 1, 2, 3, 4};
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_FunctionPrototypes
|
||||
* @{
|
||||
*/
|
||||
|
||||
#if defined(STM32F100xE) || defined(STM32F101xE) || defined(STM32F101xG) || defined(STM32F103xE) || defined(STM32F103xG)
|
||||
#ifdef DATA_IN_ExtSRAM
|
||||
static void SystemInit_ExtMemCtl(void);
|
||||
#endif /* DATA_IN_ExtSRAM */
|
||||
#endif /* STM32F100xE || STM32F101xE || STM32F101xG || STM32F103xE || STM32F103xG */
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/** @addtogroup STM32F1xx_System_Private_Functions
|
||||
* @{
|
||||
*/
|
||||
|
||||
/**
|
||||
* @brief Setup the microcontroller system
|
||||
* Initialize the Embedded Flash Interface, the PLL and update the
|
||||
* SystemCoreClock variable.
|
||||
* @note This function should be used only after reset.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemInit (void)
|
||||
{
|
||||
#if defined(STM32F100xE) || defined(STM32F101xE) || defined(STM32F101xG) || defined(STM32F103xE) || defined(STM32F103xG)
|
||||
#ifdef DATA_IN_ExtSRAM
|
||||
SystemInit_ExtMemCtl();
|
||||
#endif /* DATA_IN_ExtSRAM */
|
||||
#endif
|
||||
|
||||
/* Configure the Vector Table location -------------------------------------*/
|
||||
#if defined(USER_VECT_TAB_ADDRESS)
|
||||
SCB->VTOR = VECT_TAB_BASE_ADDRESS | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM. */
|
||||
#endif /* USER_VECT_TAB_ADDRESS */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Update SystemCoreClock variable according to Clock Register Values.
|
||||
* The SystemCoreClock variable contains the core clock (HCLK), it can
|
||||
* be used by the user application to setup the SysTick timer or configure
|
||||
* other parameters.
|
||||
*
|
||||
* @note Each time the core clock (HCLK) changes, this function must be called
|
||||
* to update SystemCoreClock variable value. Otherwise, any configuration
|
||||
* based on this variable will be incorrect.
|
||||
*
|
||||
* @note - The system frequency computed by this function is not the real
|
||||
* frequency in the chip. It is calculated based on the predefined
|
||||
* constant and the selected clock source:
|
||||
*
|
||||
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
|
||||
*
|
||||
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
|
||||
*
|
||||
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
|
||||
* or HSI_VALUE(*) multiplied by the PLL factors.
|
||||
*
|
||||
* (*) HSI_VALUE is a constant defined in stm32f1xx.h file (default value
|
||||
* 8 MHz) but the real value may vary depending on the variations
|
||||
* in voltage and temperature.
|
||||
*
|
||||
* (**) HSE_VALUE is a constant defined in stm32f1xx.h file (default value
|
||||
* 8 MHz or 25 MHz, depending on the product used), user has to ensure
|
||||
* that HSE_VALUE is same as the real frequency of the crystal used.
|
||||
* Otherwise, this function may have wrong result.
|
||||
*
|
||||
* - The result of this function could be not correct when using fractional
|
||||
* value for HSE crystal.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemCoreClockUpdate (void)
|
||||
{
|
||||
uint32_t tmp = 0U, pllmull = 0U, pllsource = 0U;
|
||||
|
||||
#if defined(STM32F105xC) || defined(STM32F107xC)
|
||||
uint32_t prediv1source = 0U, prediv1factor = 0U, prediv2factor = 0U, pll2mull = 0U;
|
||||
#endif /* STM32F105xC */
|
||||
|
||||
#if defined(STM32F100xB) || defined(STM32F100xE)
|
||||
uint32_t prediv1factor = 0U;
|
||||
#endif /* STM32F100xB or STM32F100xE */
|
||||
|
||||
/* Get SYSCLK source -------------------------------------------------------*/
|
||||
tmp = RCC->CFGR & RCC_CFGR_SWS;
|
||||
|
||||
switch (tmp)
|
||||
{
|
||||
case 0x00U: /* HSI used as system clock */
|
||||
SystemCoreClock = HSI_VALUE;
|
||||
break;
|
||||
case 0x04U: /* HSE used as system clock */
|
||||
SystemCoreClock = HSE_VALUE;
|
||||
break;
|
||||
case 0x08U: /* PLL used as system clock */
|
||||
|
||||
/* Get PLL clock source and multiplication factor ----------------------*/
|
||||
pllmull = RCC->CFGR & RCC_CFGR_PLLMULL;
|
||||
pllsource = RCC->CFGR & RCC_CFGR_PLLSRC;
|
||||
|
||||
#if !defined(STM32F105xC) && !defined(STM32F107xC)
|
||||
pllmull = ( pllmull >> 18U) + 2U;
|
||||
|
||||
if (pllsource == 0x00U)
|
||||
{
|
||||
/* HSI oscillator clock divided by 2 selected as PLL clock entry */
|
||||
SystemCoreClock = (HSI_VALUE >> 1U) * pllmull;
|
||||
}
|
||||
else
|
||||
{
|
||||
#if defined(STM32F100xB) || defined(STM32F100xE)
|
||||
prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1U;
|
||||
/* HSE oscillator clock selected as PREDIV1 clock entry */
|
||||
SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull;
|
||||
#else
|
||||
/* HSE selected as PLL clock entry */
|
||||
if ((RCC->CFGR & RCC_CFGR_PLLXTPRE) != (uint32_t)RESET)
|
||||
{/* HSE oscillator clock divided by 2 */
|
||||
SystemCoreClock = (HSE_VALUE >> 1U) * pllmull;
|
||||
}
|
||||
else
|
||||
{
|
||||
SystemCoreClock = HSE_VALUE * pllmull;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
#else
|
||||
pllmull = pllmull >> 18U;
|
||||
|
||||
if (pllmull != 0x0DU)
|
||||
{
|
||||
pllmull += 2U;
|
||||
}
|
||||
else
|
||||
{ /* PLL multiplication factor = PLL input clock * 6.5 */
|
||||
pllmull = 13U / 2U;
|
||||
}
|
||||
|
||||
if (pllsource == 0x00U)
|
||||
{
|
||||
/* HSI oscillator clock divided by 2 selected as PLL clock entry */
|
||||
SystemCoreClock = (HSI_VALUE >> 1U) * pllmull;
|
||||
}
|
||||
else
|
||||
{/* PREDIV1 selected as PLL clock entry */
|
||||
|
||||
/* Get PREDIV1 clock source and division factor */
|
||||
prediv1source = RCC->CFGR2 & RCC_CFGR2_PREDIV1SRC;
|
||||
prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1U;
|
||||
|
||||
if (prediv1source == 0U)
|
||||
{
|
||||
/* HSE oscillator clock selected as PREDIV1 clock entry */
|
||||
SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull;
|
||||
}
|
||||
else
|
||||
{/* PLL2 clock selected as PREDIV1 clock entry */
|
||||
|
||||
/* Get PREDIV2 division factor and PLL2 multiplication factor */
|
||||
prediv2factor = ((RCC->CFGR2 & RCC_CFGR2_PREDIV2) >> 4U) + 1U;
|
||||
pll2mull = ((RCC->CFGR2 & RCC_CFGR2_PLL2MUL) >> 8U) + 2U;
|
||||
SystemCoreClock = (((HSE_VALUE / prediv2factor) * pll2mull) / prediv1factor) * pllmull;
|
||||
}
|
||||
}
|
||||
#endif /* STM32F105xC */
|
||||
break;
|
||||
|
||||
default:
|
||||
SystemCoreClock = HSI_VALUE;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Compute HCLK clock frequency ----------------*/
|
||||
/* Get HCLK prescaler */
|
||||
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4U)];
|
||||
/* HCLK clock frequency */
|
||||
SystemCoreClock >>= tmp;
|
||||
}
|
||||
|
||||
#if defined(STM32F100xE) || defined(STM32F101xE) || defined(STM32F101xG) || defined(STM32F103xE) || defined(STM32F103xG)
|
||||
/**
|
||||
* @brief Setup the external memory controller. Called in startup_stm32f1xx.s
|
||||
* before jump to __main
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
#ifdef DATA_IN_ExtSRAM
|
||||
/**
|
||||
* @brief Setup the external memory controller.
|
||||
* Called in startup_stm32f1xx_xx.s/.c before jump to main.
|
||||
* This function configures the external SRAM mounted on STM3210E-EVAL
|
||||
* board (STM32 High density devices). This SRAM will be used as program
|
||||
* data memory (including heap and stack).
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void SystemInit_ExtMemCtl(void)
|
||||
{
|
||||
__IO uint32_t tmpreg;
|
||||
/*!< FSMC Bank1 NOR/SRAM3 is used for the STM3210E-EVAL, if another Bank is
|
||||
required, then adjust the Register Addresses */
|
||||
|
||||
/* Enable FSMC clock */
|
||||
RCC->AHBENR = 0x00000114U;
|
||||
|
||||
/* Delay after an RCC peripheral clock enabling */
|
||||
tmpreg = READ_BIT(RCC->AHBENR, RCC_AHBENR_FSMCEN);
|
||||
|
||||
/* Enable GPIOD, GPIOE, GPIOF and GPIOG clocks */
|
||||
RCC->APB2ENR = 0x000001E0U;
|
||||
|
||||
/* Delay after an RCC peripheral clock enabling */
|
||||
tmpreg = READ_BIT(RCC->APB2ENR, RCC_APB2ENR_IOPDEN);
|
||||
|
||||
(void)(tmpreg);
|
||||
|
||||
/* --------------- SRAM Data lines, NOE and NWE configuration ---------------*/
|
||||
/*---------------- SRAM Address lines configuration -------------------------*/
|
||||
/*---------------- NOE and NWE configuration --------------------------------*/
|
||||
/*---------------- NE3 configuration ----------------------------------------*/
|
||||
/*---------------- NBL0, NBL1 configuration ---------------------------------*/
|
||||
|
||||
GPIOD->CRL = 0x44BB44BBU;
|
||||
GPIOD->CRH = 0xBBBBBBBBU;
|
||||
|
||||
GPIOE->CRL = 0xB44444BBU;
|
||||
GPIOE->CRH = 0xBBBBBBBBU;
|
||||
|
||||
GPIOF->CRL = 0x44BBBBBBU;
|
||||
GPIOF->CRH = 0xBBBB4444U;
|
||||
|
||||
GPIOG->CRL = 0x44BBBBBBU;
|
||||
GPIOG->CRH = 0x444B4B44U;
|
||||
|
||||
/*---------------- FSMC Configuration ---------------------------------------*/
|
||||
/*---------------- Enable FSMC Bank1_SRAM Bank ------------------------------*/
|
||||
|
||||
FSMC_Bank1->BTCR[4U] = 0x00001091U;
|
||||
FSMC_Bank1->BTCR[5U] = 0x00110212U;
|
||||
}
|
||||
#endif /* DATA_IN_ExtSRAM */
|
||||
#endif /* STM32F100xE || STM32F101xE || STM32F101xG || STM32F103xE || STM32F103xG */
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||
Reference in New Issue
Block a user