You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
2.4 KiB
63 lines
2.4 KiB
void EXTI_IRQ_Handler(void);
|
|
|
|
void exti_irq_init(void) {
|
|
if (harness.status == HARNESS_STATUS_FLIPPED) {
|
|
// CAN2_RX IRQ on falling edge (EXTI10)
|
|
current_board->enable_can_transceiver(3U, false);
|
|
SYSCFG->EXTICR[2] &= ~(SYSCFG_EXTICR3_EXTI10_Msk);
|
|
SYSCFG->EXTICR[2] |= (SYSCFG_EXTICR3_EXTI10_PG);
|
|
EXTI->IMR1 |= EXTI_IMR1_IM10;
|
|
EXTI->RTSR1 &= ~EXTI_RTSR1_TR10; // rising edge
|
|
EXTI->FTSR1 |= EXTI_FTSR1_TR10; // falling edge
|
|
|
|
// IRQ on falling edge for PA1 (SBU2, EXTI1)
|
|
SYSCFG->EXTICR[0] &= ~(SYSCFG_EXTICR1_EXTI1_Msk);
|
|
SYSCFG->EXTICR[0] |= (SYSCFG_EXTICR1_EXTI1_PA);
|
|
EXTI->IMR1 |= EXTI_IMR1_IM1;
|
|
EXTI->RTSR1 &= ~EXTI_RTSR1_TR1; // rising edge
|
|
EXTI->FTSR1 |= EXTI_FTSR1_TR1; // falling edge
|
|
REGISTER_INTERRUPT(EXTI1_IRQn, EXTI_IRQ_Handler, 100U, FAULT_INTERRUPT_RATE_EXTI)
|
|
NVIC_EnableIRQ(EXTI1_IRQn);
|
|
REGISTER_INTERRUPT(EXTI15_10_IRQn, EXTI_IRQ_Handler, 100U, FAULT_INTERRUPT_RATE_EXTI)
|
|
NVIC_EnableIRQ(EXTI15_10_IRQn);
|
|
} else {
|
|
// CAN0_RX IRQ on falling edge (EXTI8)
|
|
current_board->enable_can_transceiver(1U, false);
|
|
SYSCFG->EXTICR[2] &= ~(SYSCFG_EXTICR3_EXTI8_Msk);
|
|
SYSCFG->EXTICR[2] |= (SYSCFG_EXTICR3_EXTI8_PB);
|
|
EXTI->IMR1 |= EXTI_IMR1_IM8;
|
|
EXTI->RTSR1 &= ~EXTI_RTSR1_TR8; // rising edge
|
|
EXTI->FTSR1 |= EXTI_FTSR1_TR8; // falling edge
|
|
|
|
// IRQ on falling edge for PC4 (SBU1, EXTI4)
|
|
SYSCFG->EXTICR[1] &= ~(SYSCFG_EXTICR2_EXTI4_Msk);
|
|
SYSCFG->EXTICR[1] |= (SYSCFG_EXTICR2_EXTI4_PC);
|
|
EXTI->IMR1 |= EXTI_IMR1_IM4;
|
|
EXTI->RTSR1 &= ~EXTI_RTSR1_TR4; // rising edge
|
|
EXTI->FTSR1 |= EXTI_FTSR1_TR4; // falling edge
|
|
REGISTER_INTERRUPT(EXTI4_IRQn, EXTI_IRQ_Handler, 100U, FAULT_INTERRUPT_RATE_EXTI)
|
|
NVIC_EnableIRQ(EXTI4_IRQn);
|
|
REGISTER_INTERRUPT(EXTI9_5_IRQn, EXTI_IRQ_Handler, 100U, FAULT_INTERRUPT_RATE_EXTI)
|
|
NVIC_EnableIRQ(EXTI9_5_IRQn);
|
|
}
|
|
}
|
|
|
|
bool check_exti_irq(void) {
|
|
return ((EXTI->PR1 & EXTI_PR1_PR8) || (EXTI->PR1 & EXTI_PR1_PR10) || (EXTI->PR1 & EXTI_PR1_PR1) || (EXTI->PR1 & EXTI_PR1_PR4));
|
|
}
|
|
|
|
void exti_irq_clear(void) {
|
|
// Clear pending bits
|
|
EXTI->PR1 |= EXTI_PR1_PR8;
|
|
EXTI->PR1 |= EXTI_PR1_PR10;
|
|
EXTI->PR1 |= EXTI_PR1_PR4;
|
|
EXTI->PR1 |= EXTI_PR1_PR1; // works
|
|
EXTI->PR1 |= EXTI_PR1_PR19; // works
|
|
|
|
// Disable all active EXTI IRQs
|
|
EXTI->IMR1 &= ~EXTI_IMR1_IM8;
|
|
EXTI->IMR1 &= ~EXTI_IMR1_IM10;
|
|
EXTI->IMR1 &= ~EXTI_IMR1_IM4;
|
|
EXTI->IMR1 &= ~EXTI_IMR1_IM1;
|
|
EXTI->IMR1 &= ~EXTI_IMR1_IM19;
|
|
}
|
|
|