這個範例,採用TIMER 1 CC4作為ADC觸發訊號來示範。在STM32CubeMX中,首先對ADC做設置如下。先任意新增一個ADC IN通道。新增一個和ADC連結的DMA通道。設置ADC設定,打開DMA Continuous Requests。依據線路,適當的更改Sampling Time,外部觸發來源更改為Timer 1 Capture Compare 4 event,觸發緣改為上升下降緣皆可觸發。到...
Num_OvEvent++; } } } /* Capture compare 1 event */ if(__HAL_TIM_GET_FLAG(htim, TIM_FLAG_CC1) != RESET) { __HAL_TIM_CLEAR_IT(htim, TIM_IT_CC1); if (Measure_State == 0x01) { Front_Num_OvEvent = Num_OvEvent; Measure_State =0x02; } } /* Capture compare 2 event */...
/* Capture compare 2 event */if(__HAL_TIM_GET_FLAG(htim, TIM_FLAG_CC2) != RESET){ __HAL_TIM_CLEAR_IT(htim, TIM_IT_CC2);if(Measure_State == 0x02) { Measure_State =0x03; Total_Num_OvEvent = Num_OvEvent; HAL_TIM4_IC_CaptureCallback(htim); //go to calculate pulse ...
/ *溢出中断;启用Capture1中断* / TIM1_ITConfig（TIM1_IT_UPDATE | TIM1_IT_CC1，ENABLE）;/ *...
#define TIMER_A_CAPTURECOMPARE_REGISTER_1 0x04 #define TIMER_A_CAPTURECOMPARE_REGISTER_2 0x06 #define TIMER_A_CAPTURECOMPARE_REGISTER_3 0x08 #define TIMER_A_CAPTURECOMPARE_REGISTER_4 0x0A #define TIMER_A_CAPTURECOMPARE_REGISTER_5 0x0C #define TIMER_A_CAPTURECOMPARE_REGI...
Ensure that the interrupt for the capture compare event is configured inConfiguration Parameters>timers>show TIM#>Configurations Transfer complete event of the DMA configured for selected timer and channel- If length of capture compare data to be read is greater than1. This ensures block outputs dat...
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B2G—Break generation 2 event scalar COMG—Capture compare control update generation scalar Output expand all CNT—Current timer counter value scalar Dir—Timer counter direction output scalar MOE status—Status of main output enable bit scalar ...
Base is event generation register. TIMER_DMA_BASE_CCMR1 = TIMER_DCR_DBA_CCMR1 - Base is capture/compare mode register 1. TIMER_DMA_BASE_CCMR2 = TIMER_DCR_DBA_CCMR2 - Base is capture/compare mode register 2. TIMER_DMA_BASE_CCER = TIMER_DCR_DBA_CCER - Base is capture/compar...
//Timer control routinesvoidbaud_timer_init(){#ifdef___MAPLEtimer4.pause();// Pause the timer while configuring ittimer4.setMode(TIMER_CH1, TIMER_OUTPUT_COMPARE);// Set up interrupt on channel 1timer4.setCount(0);// Reset count to zerotimer4.setPrescaleFactor(72);// Timer counts at...