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106 lines
2.5 KiB
106 lines
2.5 KiB
#include "led.h" |
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#include "dap_main.h" |
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#include "cdc_main.h" |
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static void TIM3_Init(u16 arr, u16 psc) |
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{ |
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TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure; |
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NVIC_InitTypeDef NVIC_InitStructure; |
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); |
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TIM_TimeBaseInitStructure.TIM_Period = arr; |
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TIM_TimeBaseInitStructure.TIM_Prescaler = psc; |
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TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up; |
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TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1; |
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TIM_TimeBaseInit(TIM3, &TIM_TimeBaseInitStructure); |
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TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE); |
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NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; |
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 3; |
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; |
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; |
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NVIC_Init(&NVIC_InitStructure); |
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TIM_Cmd(TIM3, ENABLE); |
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} |
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void LED_Init(void) |
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{ |
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RCC->APB2PCENR |= RCC_APB2Periph_GPIOA; |
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RCC->APB2PCENR |= RCC_APB2Periph_GPIOC; |
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GPIOA->CFGHR &= ~(0x0F << (4 * 1)); // LED1,GPIOA9 |
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GPIOA->CFGHR |= 0x03 << (4 * 1); |
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GPIOA->BSHR = 1 << 9; |
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GPIOC->CFGLR &= ~(0x0F << (4 * 3)); // LED2,GPIOC3 |
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GPIOC->CFGLR |= 0x03 << (4 * 3); |
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GPIOC->BSHR = 1 << 3; |
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TIM3_Init(1000 - 1, 48 - 1); |
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} |
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static void LED_Task(void) |
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{ |
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static uint32_t LED_Task_Cnt = 0; |
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static uint32_t DAP_In_Active_Cnt = 0; |
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static uint32_t CDC_In_Active_Cnt = 0; |
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if (DAP_Is_Active == 1) |
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DAP_In_Active_Cnt = 0; |
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else if (DAP_In_Active_Cnt < 500) |
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DAP_In_Active_Cnt++; |
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DAP_Is_Active = 0; |
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if (DAP_In_Active_Cnt >= 500) |
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{ |
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GPIOA->BCR = 1 << 9; // LED1 |
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} |
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else |
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{ |
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if (LED_Task_Cnt % 100 == 0) |
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{ |
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if (GPIOA->OUTDR & (1 << 9)) |
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GPIOA->BCR = 1 << 9; |
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else |
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GPIOA->BSHR = 1 << 9; |
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} |
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} |
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if (CDC_Is_Active == 1) |
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CDC_In_Active_Cnt = 0; |
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else if (CDC_In_Active_Cnt < 500) |
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CDC_In_Active_Cnt++; |
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CDC_Is_Active = 0; |
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if (CDC_In_Active_Cnt >= 500) |
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{ |
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GPIOC->BCR = 1 << 3; // LED2 |
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} |
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else |
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{ |
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if (LED_Task_Cnt % 100 == 0) |
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{ |
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if (GPIOC->OUTDR & (1 << 3)) |
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GPIOC->BCR = 1 << 3; |
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else |
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GPIOC->BSHR = 1 << 3; |
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} |
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} |
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LED_Task_Cnt++; |
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} |
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void TIM3_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast"))); |
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void TIM3_IRQHandler(void) |
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{ |
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if (TIM_GetITStatus(TIM3, TIM_IT_Update) == SET) |
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{ |
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TIM_ClearITPendingBit(TIM3, TIM_IT_Update); |
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LED_Task(); |
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} |
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}
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