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hardware code

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This commit is contained in:
Mateusz Drabek 2023-01-18 22:09:03 +01:00
parent 257e82fe7e
commit f04d1f52c5
2 changed files with 220 additions and 2 deletions
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209
hardware/code/Core/Src/main.c
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@ -6,7 +6,7 @@
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2023 STMicroelectronics.
* <h2><center>&copy; Copyright (c) 2022 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
@ -36,6 +36,8 @@
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
#define min(a,b) (((a) < (b)) ? (a) : (b))
#define max(a,b) (((a) > (b)) ? (a) : (b))
/* USER CODE END PM */
@ -48,6 +50,28 @@ UART_HandleTypeDef huart2;
/* USER CODE BEGIN PV */
uint32_t adc_vals_old[2] = {};
uint32_t adc_vals[2];
uint8_t rx = 0;
uint8_t rx_buf[128] = {0};
int tail = 0, head = 0;
uint8_t notes[128] = {0};
uint8_t note_priority = 1;
uint32_t tones[] = {1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
/*c4*/ 1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065, 2146, 2225, 2304, 2383,
1508, 1587, 1666, 1745, 1824, 1903, 1986, 2065};
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
@ -63,6 +87,69 @@ static void MX_DAC1_Init(void);
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
uint32_t endian_swap(uint32_t value)
{
_Static_assert(sizeof(uint32_t) == 4, "I can't imagine world where this is false");
char buf[sizeof(uint32_t)];
memcpy(buf, &value, sizeof(value));
// swap(buf[0], buf[3])
uint32_t t = buf[0]; buf[0] = buf[3]; buf[3] = t;
// swap(buf[1], buf[2])
t = buf[1]; buf[1] = buf[2]; buf[2] = t;
memcpy(&value, buf, sizeof(value));
return value;
}
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
if (GPIO_Pin == IT1_Pin) {
uint8_t val = 0b10000000;
//HAL_UART_Transmit(&huart2, (uint8_t *) &val, sizeof(val), HAL_MAX_DELAY);
if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_9)){
// falling
printf("D%04lu\n", 0);
} else{
// rising
printf("D%04lu\n", 4095);
}
}
if (GPIO_Pin == IT2_Pin) {
uint8_t val = 0b10000001;
//HAL_UART_Transmit(&huart2, (uint8_t *) &val, sizeof(val), HAL_MAX_DELAY);
if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_8)){
// falling
printf("C%04lu\n", 0);
} else{
// rising
printf("C%04lu\n", 4095);
}
}
if (GPIO_Pin == IT3_Pin) {
uint8_t val = 0b10000010;
//HAL_UART_Transmit(&huart2, (uint8_t *) &val, sizeof(val), HAL_MAX_DELAY);
if(HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_7)){
// falling
printf("E%04lu\n", 0);
} else{
// rising
printf("E%04lu\n", 4095);
}
}
}
int __io_putchar(int ch)
{
if (ch == '\n') {
__io_putchar('\r');
}
HAL_UART_Transmit(&huart2, (uint8_t*)&ch, 1, HAL_MAX_DELAY);
return 1;
}
/* USER CODE END 0 */
/**
@ -98,12 +185,132 @@ int main(void)
MX_DAC1_Init();
/* USER CODE BEGIN 2 */
// start both DAC channels
HAL_DAC_Start(&hdac1, DAC1_CHANNEL_1);
HAL_DAC_Start(&hdac1, DAC1_CHANNEL_2);
// configure built-in ADC
HAL_ADCEx_Calibration_Start(&hadc1, ADC_SINGLE_ENDED);
HAL_UART_Receive_IT(&huart2, &rx, 1);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/*int transmit_flag = 0;
char adc_chars[sizeof(uint32_t)] = {};
for(int i = 0; i < 2; i++){
HAL_ADC_Start(&hadc1);
HAL_ADC_PollForConversion(&hadc1, HAL_MAX_DELAY);
adc_vals[i] = HAL_ADC_GetValue(&hadc1);
if((adc_vals[i] > adc_vals_old[i] && adc_vals[i] - adc_vals_old[i] > 100) ||
(adc_vals[i] < adc_vals_old[i] && adc_vals_old[i] - adc_vals[i] > 100)){
printf("NR %d do zmiany\n", i);
uint32_t temp = adc_vals[i];
adc_vals_old[i] = temp;
adc_vals[i] = endian_swap(temp);
memcpy(adc_chars + (sizeof(uint32_t)*i), &adc_vals[i], sizeof(uint32_t));
transmit_flag = 1;
}
}
if(transmit_flag == 1){
//HAL_UART_Transmit(&huart2, (uint8_t *) &adc_chars[0], 2 * sizeof(uint32_t), HAL_MAX_DELAY);
}*/
int note_update_flag = 0;
if (head != tail){
if((rx_buf[tail] & 0b11110000) == 0b10010000){
// note on
int bytes_available = (head - tail + 128) % 128;
if (bytes_available >= 3){
// if all 3 bytes available
// printf("G%04d\n", rx_buf[tail+1]);
notes[rx_buf[tail+1]] = note_priority++;
note_update_flag = 1;
tail = (tail+3)%128;
}
}else if((rx_buf[tail] & 0b11110000) == 0b10000000){
// note off
int bytes_available = (head - tail + 128) % 128;
if (bytes_available >= 3){
// if all 3 bytes available
// printf("G%04d\n", rx_buf[tail+1]);
notes[rx_buf[tail+1]] = 0;
note_update_flag = 1;
tail = (tail+3)%128;
}
}else{
// anything else
// for now drop the data
tail = (tail+1)%128;
}
if(note_update_flag){
int newest_note = -1;
uint8_t max_priority = 0;
for(int i = 0; i < 128; i++){
if(notes[i] > max_priority){
max_priority = notes[i];
newest_note = i;
}
}
if(newest_note >= 0){
DAC1->DHR12R1 = max(min(tones[newest_note], 4095), 0);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_6, GPIO_PIN_SET);
}else{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_6, GPIO_PIN_RESET);
}
}
/////////////////////// A //////////////////////
/*uint8_t data[3];
data[0] = 0b10010000;
data[1] = rx_buf[tail];
data[2] = 0b01111111;
HAL_UART_Transmit(&huart3, &data[0], 3, HAL_MAX_DELAY);
HAL_Delay(500);
data[0] = 0b10000000;
HAL_UART_Transmit(&huart3, &data[0], 3, HAL_MAX_DELAY);
tail = (tail+1)%128;*/
}
char adc_chars[sizeof(uint32_t)] = {};
for(int i = 0; i < 2; i++){
HAL_ADC_Start(&hadc1);
HAL_ADC_PollForConversion(&hadc1, HAL_MAX_DELAY);
adc_vals[i] = 4095 - HAL_ADC_GetValue(&hadc1);
}
printf("A%04lu\n", adc_vals[0]);
printf("B%04lu\n", adc_vals[1]);
/*
for(int i = 0; i < 2; i++){
uint32_t temp = adc_vals[i];
adc_vals[i] = endian_swap(temp) << 3;
memcpy(adc_chars + (sizeof(uint32_t)*i), &adc_vals[i], sizeof(uint32_t));
}
HAL_UART_Transmit(&huart2, (uint8_t *) &adc_chars[0], 2 * sizeof(uint32_t), HAL_MAX_DELAY);
*/
HAL_Delay(100);
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */

13
hardware/code/Core/Src/stm32l4xx_it.c
View File

@ -6,7 +6,7 @@
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2023 STMicroelectronics.
* <h2><center>&copy; Copyright (c) 2022 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
@ -43,6 +43,11 @@
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
extern uint8_t rx;
extern uint8_t rx_buf[128];
extern uint8_t head;
extern uint8_t tail;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
@ -226,6 +231,12 @@ void USART2_IRQHandler(void)
HAL_UART_IRQHandler(&huart2);
/* USER CODE BEGIN USART2_IRQn 1 */
if ((head+1)%128 != tail){
rx_buf[head] = rx;
head = (head+1)%128;
}
HAL_UART_Receive_IT(&huart2, &rx, 1);
/* USER CODE END USART2_IRQn 1 */
}