加速度计取值问题
本人刚学32不久，想写一个程序从加速度传感器中读出数据，用到pc0,1pa2,3四个端口，但取不出来，求指教#include"stm32f10x_lib.h"
#define ADC1_DR_Address ((u32)0x4001244c)
ADC_InitTypeDef ADC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
vu16 ADC1ConvertedValue=0,ADC3ConvertedValue=0;
ErrorStatus HSEStartUpStatus;
void RCC_Configuration(void);
void GPIO_Configuration(void);
void NVIC_Configuration(void);
int main(void)
{
#ifdef DEBUG
debug();
#endif
RCC_Configuration();
NVIC_Configuration();
GPIO_Configuration();
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr=ADC1_DR_Address;
DMA_InitStructure.DMA_MemoryBaseAddr=(u32)&ADC1ConvertedValue;
DMA_InitStructure.DMA_DIR=DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize=1;
DMA_InitStructure.DMA_PeripheralInc=DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc=DMA_MemoryInc_Disable;
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);
// DMA_DeInit(DMA2_Channel5);
// DMA_InitStructure.DMA_PeripheralBaseAddr=ADC3_DR_Address;
// DMA_InitStructure.DMA_MemoryBaseAddr=(u32)&ADC3ConvertedValue;
// DMA_InitStructure.DMA_DIR=DMA_DIR_PeripheralSRC;
// DMA_InitStructure.DMA_BufferSize=1;
// DMA_InitStructure.DMA_PeripheralInc=DMA_PeripheralInc_Disable;
// DMA_InitStructure.DMA_MemoryInc=DMA_MemoryInc_Disable;
// 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(DMA2_Channel5,&DMA_InitStructure);
// DMA_Cmd(DMA2_Channel5,ENABLE);
ADC_InitStructure.ADC_Mode=ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode=DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode=ENABLE;
ADC_InitStructure.ADC_ExternalTrigConv=ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign=ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel=4;
ADC_Init(ADC1,&ADC_InitStructure);
ADC_RegularChannelConfig(ADC1,ADC_Channel_2,1,ADC_SampleTime_28Cycles5);
ADC_RegularChannelConfig(ADC1,ADC_Channel_3,1,ADC_SampleTime_28Cycles5);
ADC_RegularChannelConfig(ADC1,ADC_Channel_10,1,ADC_SampleTime_28Cycles5);
ADC_RegularChannelConfig(ADC1,ADC_Channel_11,1,ADC_SampleTime_28Cycles5);
ADC_DMACmd(ADC1,ENABLE);
ADC_Cmd(ADC1,ENABLE);
ADC_ResetCalibration(ADC1);
while(ADC_GetResetCalibrationStatus(ADC1));
ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1));
ADC_SoftwareStartConvCmd(ADC1,ENABLE);
while(1);
}
void RCC_Configuration(void)
{
RCC_DeInit();
RCC_HSEConfig(RCC_HSE_ON);
HSEStartUpStatus=RCC_WaitForHSEStartUp();
if(HSEStartUpStatus==SUCCESS)
{
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
FLASH_SetLatency(FLASH_Latency_2);
RCC_HCLKConfig(RCC_SYSCLK_Div1);
RCC_PCLK2Config(RCC_HCLK_Div1);
RCC_PCLK1Config(RCC_HCLK_Div2);
RCC_ADCCLKConfig(RCC_PCLK2_Div4);
RCC_PLLConfig(RCC_PLLSource_HSE_Div1,RCC_PLLMul_7);
RCC_PLLCmd(ENABLE);
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY)==RESET);
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
while(RCC_GetSYSCLKSource()!=0x08);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1|RCC_AHBPeriph_DMA2,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1|RCC_APB2Periph_GPIOC,ENABLE);
}
}
void GPIO_Configuration(void)
{
GPIO_InitTypeDefGPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_2|GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AIN;
GPIO_Init(GPIOA,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_0|GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AIN;
GPIO_Init(GPIOC,&GPIO_InitStructure);
}
void NVIC_Configuration(void)
{
#ifdefVECT_TAB_RAM
NVIC_SetVectorTable(NVIC_VectTab_RAM,0x0);
#else
NVIC_SetVectorTable(NVIC_VectTab_FLASH,0x0);
#endif
NVIC_InitStructure.NVIC_IRQChannel=ADC1_2_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority=0;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
这是代码
请问有什么问题 这代码很有问题。没注释
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