我用F103RC，原程序用TIM8出发，不过我屏蔽了。调试没有结果，请高手看看怎么回事呢？
#include "stm32f10x.h"
#include "GLCD.h"
#include "USART.h"
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure DAC channe1 and DAC channel2 outputs pins */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* Configure USART1 Tx (PA.09) as alternate function push-pull
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
Configure USART1 Rx (PA.10) as input floating
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure); */
}
//系统中断管理
void NVIC_Configuration(void)
{
/* Configure the NVIC Preemption Priority Bits */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
#ifdef VECT_TAB_RAM
/* Set the Vector Table base location at 0x20000000 */
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
}
//配置系统时钟,使能各外设时钟
void RCC_Configuration(void)
{
SystemInit();
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA
|RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC
|RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE
|RCC_APB2Periph_ADC1 | RCC_APB2Periph_AFIO
|RCC_APB2Periph_SPI1, ENABLE );
// RCC_APB2PeriphClockCmd(RCC_APB2Periph_ALL ,ENABLE );
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4
|RCC_APB1Periph_USART3|RCC_APB1Periph_TIM2
, ENABLE );
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
/* Enable peripheral clocks --------------------------------------------------*/
/* DMA clock enable */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE);
/* AFIO and GPIOA Periph clock enable */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOA, ENABLE);
/* DAC Periph clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
/* TIM8 Periph clock enable */
//RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM8, ENABLE);
}
/*void InitDis(void)
{
LCD Module init
GLCD_init();
GLCD_clear(White);
GLCD_setTextColor(Blue);
GLCD_displayStringLn(Line1, " GoldBull");
GLCD_displayStringLn(Line2, " DAC example");
GLCD_setTextColor(Red);
}*/
//配置所有外设
void Init_All_Periph(void)
{
RCC_Configuration();
//InitDis();
// GLCD_Test();
GPIO_Configuration();
NVIC_Configuration();
//USART1_Configuration();
//USART1Write((u8*)" GoldBull ADC_example ",sizeof(" GoldBull DAC_example "));
}
#define DAC_DHR12RD_Address 0x40007420
/* Init Structure definition */
DAC_InitTypeDef DAC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
ErrorStatus HSEStartUpStatus;
uc16 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, 1263, 1647};
u32 DualSine12bit[32];
u8 Idx = 0;
int main(void)
{
Init_All_Periph();
/* TIM8 Configuration
Time base configuration
TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
TIM_TimeBaseStructure.TIM_Period = 0x19;
TIM_TimeBaseStructure.TIM_Prescaler = 0x0;
TIM_TimeBaseStructure.TIM_ClockDivision = 0x0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM8, &TIM_TimeBaseStructure);
TIM8 TRGO selection
TIM_SelectOutputTrigger(TIM8, TIM_TRGOSource_Update);*/
/* DAC channel1 Configuration */
DAC_InitStructure.DAC_Trigger = DAC_Trigger_None;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Disable;
DAC_Init(DAC_Channel_1, &DAC_InitStructure);
/* DAC channel2 Configuration */
DAC_Init(DAC_Channel_2, &DAC_InitStructure);
/* Fill Sine32bit table */
for (Idx= 0; Idx<32; Idx++)
{
DualSine12bit[Idx] = (Sine12bit[Idx] << 16) + (Sine12bit[Idx]);
}
/* DMA2 channel4 configuration */
DMA_DeInit(DMA2_Channel4);
DMA_InitStructure.DMA_PeripheralBaseAddr = DAC_DHR12RD_Address;
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&DualSine12bit;
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_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA2_Channel4, &DMA_InitStructure);
/* Enable DMA2 Channel4 */
DMA_Cmd(DMA2_Channel4, ENABLE);
/* Enable DAC Channel1 */
DAC_Cmd(DAC_Channel_1, ENABLE);
/* Enable DAC Channel2 */
DAC_Cmd(DAC_Channel_2, ENABLE);
/* Enable DMA for DAC Channel2 */
//DAC_DMACmd(DAC_Channel_2, ENABLE);
/* TIM8 enable counter */
//TIM_Cmd(TIM8, ENABLE);
while(1)
{
}
} |
楼主
标题置顶
标题高亮
