Help me fix my code.ADC with STM32F303VC

bee · ‎2013-08-18

Posted on August 19, 2013 at 07:20

I want read ADC of STM32F303VC then display status on three LED (If ADC>1000 LED red bright,ADC<500 LED green bright and extant LED ogrange bright) programmed code below,but i don't find error.Thanks everyone!

#include ''main.h''

__IO uint16_t AD= 0,DA=0, ADC1ConvertedVoltage = 0, calibration_value = 0;

__IO uint32_t TimingDelay = 0;

ADC_InitTypeDef ADC_InitStructure;

ADC_CommonInitTypeDef ADC_CommonInitStructure;

GPIO_InitTypeDef GPIO_InitStructure;

/////////////////////////////////////////////////////////////////////////////////////////

int main(void)

{

RCC_ADCCLKConfig(RCC_ADC12PLLCLK_Div2);

RCC_AHBPeriphClockCmd(RCC_AHBPeriph_ADC12, ENABLE);

/* Setup SysTick Timer for 1 µsec interrupts */

if (SysTick_Config(SystemCoreClock / 1000000))

{

/* Capture error */

while (1)

{}

}

////////////////LED///////////////////////////////////

RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOE, ENABLE);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9| GPIO_Pin_10| GPIO_Pin_11;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;

GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;

GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;

GPIO_Init(GPIOE, &GPIO_InitStructure);

///////////////////////ADC///////////////////////////////

/* GPIOC Periph clock enable */

RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);

/* Configure ADC Channel2 as analog input (Pin 1 of Port A-PA1) */

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 ;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;

GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;

GPIO_Init(GPIOA, &GPIO_InitStructure);

ADC_StructInit(&ADC_InitStructure);

////////////////////////////////////////////////////////////////////////////////////////////////

/* Calibration procedure */

ADC_VoltageRegulatorCmd(ADC1, ENABLE);

/* Insert delay equal to 10 µs */

Delay(10);

ADC_SelectCalibrationMode(ADC1, ADC_CalibrationMode_Single);

ADC_StartCalibration(ADC1);

while(ADC_GetCalibrationStatus(ADC1) != RESET );

calibration_value = ADC_GetCalibrationValue(ADC1);

ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;

ADC_CommonInitStructure.ADC_Clock = ADC_Clock_AsynClkMode;

ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;

ADC_CommonInitStructure.ADC_DMAMode = ADC_DMAMode_OneShot;

ADC_CommonInitStructure.ADC_TwoSamplingDelay = 0;

ADC_CommonInit(ADC1, &ADC_CommonInitStructure);

ADC_InitStructure.ADC_ContinuousConvMode = ADC_ContinuousConvMode_Enable;

ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;

ADC_InitStructure.ADC_ExternalTrigConvEvent = ADC_ExternalTrigConvEvent_0;

ADC_InitStructure.ADC_ExternalTrigEventEdge = ADC_ExternalTrigEventEdge_None;

ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;

ADC_InitStructure.ADC_OverrunMode = ADC_OverrunMode_Disable;

ADC_InitStructure.ADC_AutoInjMode = ADC_AutoInjec_Disable;

ADC_InitStructure.ADC_NbrOfRegChannel = 1;

ADC_Init(ADC1, &ADC_InitStructure);

ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 1, ADC_SampleTime_4Cycles5);

//////////////////////////////////////////////////////////////////////////////////////////////

ADC_Cmd(ADC1, ENABLE);

/* wait for ADRDY */

while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_RDY));

ADC_StartConversion(ADC1);

/* Infinite loop */

while (1)

{

/* Test EOC flag */

while(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET);

AD =ADC_GetConversionValue(ADC1);

DA =(AD *3300)/0xFFF;

////////////////////////////////////////////////////////////////////////////////////

while(AD>1000)

{

GPIO_SetBits(GPIOE,GPIO_Pin_9);

}

while(AD<500)

{

GPIO_SetBits(GPIOE,GPIO_Pin_11);

}

GPIO_SetBits(GPIOE,GPIO_Pin_10);

}

////////////////////////////////////////////////////////////////////////////////////

void Delay(__IO uint32_t nTime)

{

TimingDelay = nTime;

while(TimingDelay != 0);

}

and my project here:

http://www.mediafire.com/download/zbuszqh91kkah6f/ADC.7z