lucalizaranzu/Shmingo-HAL
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Bare functionality finished for basic GPIO pin abstraction

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This commit is contained in:
Luca Lizaranzu
2025-09-02 00:12:08 -07:00
parent db75c06c90
commit 35bc902187
6 changed files with 37 additions and 40 deletions
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27
SHAL/Src/main.cpp
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@@ -1,18 +1,19 @@
#include "SHAL.h"
#include "stm32f0xx.h"
GPIO* blueLED;
GPIO* greenLED;
GPIO* blueLED = nullptr;
GPIO* greenLED = nullptr;
extern "C" void EXTI0_1_IRQHandler(void) {
if (EXTI->PR & (1 << 0)) { //Check pending flag
EXTI->PR |= (1 << 0); //Clear it by writing 1
blueLED->toggle();
greenLED->toggle();
}
}
void tim2Handler(){
greenLED->toggle();
blueLED->toggle();
}
int main() {
@@ -20,27 +21,23 @@ int main() {
Timer timer2 = getTimer(Timer_Key::S_TIM2);
blueLED = initGPIO(GPIO_Key::A4, PinMode::OUTPUT_MODE);
greenLED = initGPIO(GPIO_Key::A5, PinMode::OUTPUT_MODE);
blueLED = &initGPIO(GPIO_Key::A4, PinMode::OUTPUT_MODE);
greenLED = &initGPIO(GPIO_Key::A5, PinMode::OUTPUT_MODE);
timer2.setPrescaler(8000 - 1);
timer2.setARR(1500 - 1);
timer2.setCallbackFunc(tim2Handler);
timer2.start();
RCC->APB2ENR |= RCC_APB2ENR_SYSCFGEN; //Enable SYSCFG clock (needed for EXTI)
GPIOB->MODER &= ~(0x3 << (0 * 2));
GPIOB->MODER |= (0x0 << (0 * 2));
SYSCFG->EXTICR[0] &= ~SYSCFG_EXTICR1_EXTI0; //Clear EXTI0 mapping
SYSCFG->EXTICR[0] |= SYSCFG_EXTICR1_EXTI0_PB; //Map PA0 -> EXTI0
SYSCFG->EXTICR[0] &= ~SYSCFG_EXTICR1_EXTI0; // Clear EXTI0 mapping
SYSCFG->EXTICR[0] |= SYSCFG_EXTICR1_EXTI0_PB; // Map PA0 -> EXTI0
EXTI->IMR |= (1 << 0); //Unmask EXTI0
EXTI->RTSR |= (1 << 0); //Trigger on rising edge
EXTI->IMR |= (1 << 0); // Unmask EXTI0
EXTI->RTSR |= (1 << 0); // Trigger on rising edge
NVIC_EnableIRQ(EXTI0_1_IRQn); // EXTI lines 0 and 1 share an IRQ vector
NVIC_EnableIRQ(EXTI0_1_IRQn); //EXTI lines 0 and 1 share an IRQ vector
__enable_irq();