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133 lines
2.3 KiB
133 lines
2.3 KiB
#include "main.h"
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#include "delay.h"
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#include "deviceSetup.h"
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#include "usart.h"
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#include "ascii.h"
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#include "timer.h"
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#include "i2c.h"
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#include "stm32f042x6.h"
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#include "hardwareDescription.h"
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volatile uint8_t led_on;
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void setup();
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void EXTI0_1_IRQHandler(void)
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{
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if(EXTI->PR & EXTI_PR_PIF1) {
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// clear flag
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EXTI->PR |= EXTI_PR_PIF1;
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led_on = !led_on;
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}
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}
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void TIM2_IRQHandler(void)
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{
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if(TIM2->SR & TIM_SR_UIF) {
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// clear flag
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TIM2->SR &= ~TIM_SR_UIF;
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pinToggle(pinB3);
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//led_on = !led_on;
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}
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}
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void risingEdgeInterruptPinA1()
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{
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// https://controllerstech.com/external-interrupt-using-registers/
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pinConfig(pinA1, input, def_stage, pullDown, def_speed);
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// Connect
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RCC->APB2ENR |= RCC_APB2ENR_SYSCFGEN;
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SYSCFG->EXTICR[1] &= ~SYSCFG_EXTICR1_EXTI1_Msk;
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SYSCFG->EXTICR[1] |= SYSCFG_EXTICR1_EXTI1_PA;
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// Interrupt mask register
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EXTI->IMR |= EXTI_IMR_IM1;
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// rising trigger selection
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EXTI->RTSR |= EXTI_RTSR_RT1;
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NVIC_SetPriority (EXTI0_1_IRQn, 0);
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NVIC_EnableIRQ(EXTI0_1_IRQn);
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while(1)
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{
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if(led_on){
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pinWrite(pinB3,1);
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} else{
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pinWrite(pinB3,0);
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}
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}
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}
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void interruptLEDtoggleOnTIM1counterCompare()
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{
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timerInitCounter(timer_2, 0xF, 65000, upCounting);
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// Enable Update Interrupt
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TIM2->DIER |= TIM_DIER_UIE;
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NVIC_SetPriority(TIM2_IRQn,0);
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NVIC_EnableIRQ(TIM2_IRQn);
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timerSart(timer_2);
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while(1)
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{
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if(led_on){
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pinWrite(pinB3,1);
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} else{
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pinWrite(pinB3,0);
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}
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}
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}
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int main(int argc, char *argv[])
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{
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setup();
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//risingEdgeInterruptPinA1();
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interruptLEDtoggleOnTIM1counterCompare();
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return 1;
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}
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void setup()
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{
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uint8_t i = 0;
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delayInitMs(8000000, 1000); // Clock Freq and Divider for ARM library
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pinConfig(pinB3, output, pushPull, def_res, def_speed);
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pinConfig(pinA0, input, def_stage, pullDown, def_speed);
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setupInit(); // This is the sescond call of System init the assebly start code is calling it before the main.
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usartInit( usart2,
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pinA2,
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pinA15,
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115200,
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eight,
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NO_PARITY_CTRL,
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noFlowControl);
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//clears screen and send the wellcome messgae
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print_Usart(usart2, ASCII_clear);
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print_Usart(usart2, "Hello to our KED project\n\r");
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//blinks 10 times to indicate the sicsessfull init if the device
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for(i = 0 ; i < 10 ; i++) {
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delayMs(100);
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pinToggle(pinB3);
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delayMs(100);
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}
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pinWrite(pinB3,0);
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}
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