新手刚写的1s开启一次AD转换程序希望大家提意见改进

只看该作者 · 2011-7-27 15:23

#include "main.h"

main()
{
CLK_Init();
GPIO_Init();
ADC_Init();
TIM1_Init();
while(1)
{
while (!(TIM1->SR1&0x01));    // wait until reach 1s
  TIM1->SR1 &=~0x01;
  ADC1->CR1 |= ADC1_CR1_ADON ;    // enable AD converter
}
}

void CLK_Init (void)
{
CLK->ICKR |= CLK_ICKR_HSIEN;
while(!(CLK->ICKR&0x02));
CLK->CKDIVR = CLK_CKDIVR_HSIDIV;    //Fcpu=Fmaster=2MHz
}

void GPIO_Init (void)                   // IO collocation
{
GPIOD->DDR |= 0xff;
GPIOD->CR1 |= 0xff;
GPIOD->CR2 = 0x00;
GPIOB->DDR |= 0xff;
GPIOB->CR1 |= 0xff;
GPIOB->CR2 = 0x00;
}

void ADC_Init (void)
{
u8 i;
ADC1->CSR = 0x23;             /* select AIN3 and enable EOC interrupt */
ADC1->CR1 = 0x01;       /* single mode and awake the ADC */
ADC1->CR2 = 0x08;             /* disable extern interrupt and right data alignment  */
ADC1->CR3 = 0x00;             /* disable data buffer */
for(i=100;i>0;i--);       /* ensure the power of ADC is ready */
}

void TIM1_Init (void)
{
TIM1->PSCRH = 0x27;
TIM1->PSCRL = 0x0f; // Fck_cnt=Fck_psc/10000=200Hz
TIM1->CNTRH = 0x0;
TIM1->CNTRL = 0x0;
TIM1->ARRH = 0x0;
TIM1->ARRL = 0xc8;    // ARR=200,timing 1s
TIM1->IER &=~0x01;    // disable update interrupt
TIM1->CR1 |= TIM1_CR1_CEN; //enable couter
}

@far @interrupt void ADC1_EOC_AW_IRQHanlder (void)
{
ADC1->CSR &=~0x80;
GPIOD->ODR = ADC1->DRH;
GPIOB->ODR = ADC1->DRL;
return;
}

只看该作者 · 2011-7-27 15:43

:'(被鄙视了么谁来指点下么还有如何在ad转换时加上平滑滤波功能来帮下么

只看该作者 · 2011-7-28 08:36

这是我后面加的平滑滤波的实现求指点求优化啊
// through calculate average of data to achieve smoothing filtering
@far @interrupt void ADC1_EOC_AW_IRQHanlder (void)
{
ADC1->CSR &=~0x80;
if(i<10)
{
i++;
AvgH += ADC1->DRH;
AvgL += ADC1->DRL;
}
else
{
i=0;
GPIOD->ODR = AvgH/10;
GPIOB->ODR = AvgL/10;
}
return;
}

只看该作者 · 2016-8-25 08:42

效果如何啊

只看该作者 · 2016-8-25 08:57

waterbaby2011 发表于 2016-8-25 08:42
效果如何啊

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新手刚写的1s开启一次AD转换程序希望大家提意见改进