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내 STM32F303K8 뉴트로 보와 함께 사인파를 생성하는 데 문제가 있습니다. 내 견해로는 모든 것이 그것이되어야하는 것처럼 구성되어 있지만 oscilliscope에서 GND를 볼 수 있으므로 작동하지 않습니다. 아마 아무도 왜 그런 생각을 가지고 있을까요? 을 Heres 코드 :STM32에서 DAC 및 DMA를 사용하여 사인파를 생성 할 수 없음
#include "stm32f30x.h"
#include <stdio.h>
#define DAC_DHR12R2_ADDRESS 0x40007414
const uint16_t Sine12bit[32] = {
2047, 2447, 2831, 3185, 3498, 3750, 3939, 4056, 4095, 4056,
3939, 3750, 3495, 3185, 2831, 2447, 2047, 1647, 1263, 909,
599, 344, 155, 38, 0, 38, 155, 344, 599, 909,
263, 1647};
DAC_InitTypeDef DAC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
static void DMA_setup(void){
DMA_InitStructure.DMA_PeripheralBaseAddr = DAC_DHR12R2_ADDRESS;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&Sine12bit;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
DMA_InitStructure.DMA_BufferSize = 32;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel1, &DMA_InitStructure);
DMA_Cmd(DMA1_Channel1, ENABLE);
DAC_DMACmd(DAC1, DAC_Channel_1, ENABLE);
}
static void DAC_setup(void){
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);
DAC_InitStructure.DAC_Trigger = DAC_Trigger_T6_TRGO;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStructure.DAC_Buffer_Switch = DAC_BufferSwitch_Disable;
DAC_Init(DAC1, DAC_Channel_1, &DAC_InitStructure);
}
static void TIMER_setup(void){
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM6, ENABLE);
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
TIM_TimeBaseStructure.TIM_Period = 100;
TIM_TimeBaseStructure.TIM_Prescaler = 0;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM6, &TIM_TimeBaseStructure);
TIM_SelectOutputTrigger(TIM6, TIM_TRGOSource_Update);
TIM_Cmd(TIM6, ENABLE);
}
int main(void){
TIMER_setup();
DAC_setup();
DMA_setup();
DAC_Cmd(DAC1, DAC_Channel_1, ENABLE);
}
추가되었습니다. 고마워;) – grzemski
메인 이후에는 어떻게 될까요? 독립적 인 환경에서 끝없는 반복을하지 않으면 IP는 다음 garbages 값에 도달하여 해석 할 때까지 카운트 업합니다. – 12431234123412341234123