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interrupt based light switch detection for front SN

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This commit is contained in:
Karlsson Winkels 2025-07-07 17:19:27 +02:00
parent bfc0eb2276
commit c4849935c0
1 changed files with 54 additions and 0 deletions
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54
Software/Core/Src/main.c
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@ -60,6 +60,9 @@ FDCAN_TxHeaderTypeDef txHeader;
// Declare buffer in AXI SRAM
static uint16_t adc_values[NUM_ADC_PINS];
static uint8_t dio_values[NUM_DIO_PINS];
#ifdef SN_FRONT
static uint8_t ls_values[2];
#endif /* SN_FRONT */
static uint16_t filtered_values[NUM_ADC_PINS];
@ -85,12 +88,23 @@ void send_latest_can() {
tx_counter++;
#if defined(SN_FRONT)
memcpy(dio_values, ls_values, 2);
memset(ls_values, 0, 2);
for (int di = 2; di < NUM_DIO_PINS; di++) { //TODO: find way to make this dependent on mappings
dio_values[di] = HAL_GPIO_ReadPin(
DIO_PIN_MAP[di].port,
DIO_PIN_MAP[di].pin
);
}
#elif defined(SN_REAR)
for (int di = 0; di < NUM_DIO_PINS; di++) {
dio_values[di] = HAL_GPIO_ReadPin(
DIO_PIN_MAP[di].port,
DIO_PIN_MAP[di].pin
);
}
#endif /* SN_FRONT */
for (int pi = 0; pi < NUM_TX_PKT; pi++) {
@ -158,6 +172,16 @@ void filter_adc() {
}
}
#ifdef SN_FRONT
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) {
if (GPIO_Pin == DIO_PIN_MAP[CAN_SIGNAL_MAP[0].signals[0].channel].pin) {
ls_values[1] = 1;
} else if (GPIO_Pin == DIO_PIN_MAP[CAN_SIGNAL_MAP[0].signals[1].channel].pin) {
ls_values[0] = 1;
}
}
#endif /* SN_FRONT */
/* USER CODE END 0 */
/**
@ -202,6 +226,36 @@ int main(void)
/* Initialize interrupts */
MX_NVIC_Init();
/* USER CODE BEGIN 2 */
// Enable Interrupts for Light Switch Pins
#ifdef SN_FRONT
// check if pin name is "LS L"
if (strcmp(CAN_SIGNAL_MAP[0].signals[0].name, "LS L") != 0
|| strcmp(CAN_SIGNAL_MAP[0].signals[1].name, "LS R") != 0
) {
Error_Handler();
}
GPIO_InitTypeDef GPIO_InitStruct = {0};
GPIO_InitStruct.Pin = CAN_SIGNAL_MAP[0].signals[0].channel;
GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(DIO_PIN_MAP[CAN_SIGNAL_MAP[0].signals[0].channel].port, &GPIO_InitStruct);
GPIO_InitStruct.Pin = CAN_SIGNAL_MAP[0].signals[1].channel;
HAL_GPIO_Init(DIO_PIN_MAP[CAN_SIGNAL_MAP[0].signals[1].channel].port, &GPIO_InitStruct);
// Did not find a way to make this dependent on mappings,
// since the EXTI lines are shared for pins 10-15
// so i just error if the pins are not 10, 15
if (DIO_PIN_MAP[CAN_SIGNAL_MAP[0].signals[0].channel].pin != GPIO_PIN_10
|| DIO_PIN_MAP[CAN_SIGNAL_MAP[0].signals[1].channel].pin != GPIO_PIN_15
) {
Error_Handler();
}
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
#endif /* SN_FRONT */
hMainCAN = &hfdcan1;
hPeriCAN = &hfdcan2;