|
2055| 1
|
我使用MINI开发板正常使用ADC对A0管脚解码 程序正常 但同样的程序没有修改过 直接放到STM32F103C8的最小系统上 接线完全一样 不能正常解码 负载对电压电流要求不高 求解？ |
|
5金钱
| ||
 |
||
| ||
|
我是开源电子网www.openedv.com站长，有关站务问题请与我联系。
正点原子STM32开发板购买店铺：http://openedv.taobao.com 正点原子官方微信公众平台，点击这里关注“正点原子” |
||
/2 
正点原子公众号
|手机版|OpenEdv-开源电子网
( 粤ICP备12000418号-1 )
GMT+8, 2025-6-28 14:05
Powered by OpenEdv-开源电子网
© 2001-2030 OpenEdv-开源电子网
发表于 2014-11-26 20:29:32
MA?¨??CHx //cpar:???è???· //cmar:?????÷???·//cndtr:??????????
void MYDMA_Config(DMA_Channel_TypeDef* DMA_CHx,u32 cpar,u32 cmar,u16 cndtr)
{
DMA_InitTypeDef DMA_InitStructure;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE); //????DMA?±??
DMA_DeInit(DMA_CHx); //??DMA???¨??1?????÷???è???±????
DMA1_MEM_LEN=cndtr;//?¨???????¤??
DMA_InitStructure.DMA_PeripheralBaseAddr = cpar; //DMA???è?ù???·
DMA_InitStructure.DMA_MemoryBaseAddr = cmar; //DMA?????ù???·
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; //????????·??ò???????è·????????? DMA_CCRX??4
DMA_InitStructure.DMA_BufferSize = cndtr; //DMA?¨????DMA???????ó??
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; //???è???·?????÷??±?
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; //???????·?????÷????
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; //???è?????í????16??
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord; //?????????í????16??
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular; //?¤×÷?????·????????
DMA_InitStructure.DMA_Priority = DMA_Priority_High; //DMA?¨?? x????????????
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; //DMA?¨??x?????è??????????????????
DMA_Init(DMA_CHx, &DMA_InitStructure); //?ù??DMA_InitStruct?????¨????????????DMA???¨??USART1_Tx_DMA_Channel?ù±ê?????????÷
}
#include "delay.h"
#include "sys.h"
#include "pwm.h"
#include "stdio.h"
#include "usart.h"
#include "dma.h"
#include "adc.h"
//#define KEY0 //KEY0
//#define KEY1 //KEY1
//#define WKUP //WK_UP
#define N 50 //?50????
#define M 15 //15?AD
u16 value[N][M];
u16 aftervalue[M];
float avalue[M];
u8 i=0,j=0;
u8 RX;
void filter(void)
{
int sum = 0;
u8 count;
for(i=0;i<M;i++)
{
for(count=0;count<N;count++)
{
sum+=value[count];
}
aftervalue=sum/N;
sum=0;
}
}
int deal(int temp)
{
if(temp>=0 && temp<=7)
{
return temp+=11;
}
if(temp>7 && temp<=30)
{
return temp=temp+3;
}
if(temp>23 && temp<=37)
{
return temp=temp-5;
}
if(temp>40)
{
return 32;
}
}
void delay ( unsigned int t) // 50 ms unsigned int
{
unsigned char j;
for (;t>0;t--)
for (j=19;j>0;j--);
}
int main(void)
{
int temp=10;
u16 pwmval1;//×ó???ú
u16 pwmval2;//?????ú
float temp2[15];
uart_init(9600); //?®??????????9600
SystemInit();
delay_init(72); //???±??????
NVIC_Configuration();
Adc_Init();
PWM_Init1(199,7199);
PWM_Init2(199,7199);
MYDMA_Config(DMA1_Channel1,(u32)&ADC1->DR,(u32)&value,M*N);
ADC_SoftwareStartConvCmd(ADC1,ENABLE);
DMA_Cmd(DMA1_Channel1, ENABLE);
while(1)
{
filter();
for(i=0;i<M;i++)
{
avalue=(float)aftervalue*(3.3/4096);
aftervalue=avalue;
}
for(i=0;i<M;i++)
{
avalue+=aftervalue;
avalue*=40;
}
//printf ("%d %d\n",deal((int)avalue[0]/5),deal((int)avalue[1]/5));
TIM_SetCompare2(TIM3,deal((int)avalue[0]/5)); //11
TIM_SetCompare1(TIM3,deal((int)avalue[0]/5));
delay_ms(150); //200
/* if(KEY1==0)
{
temp++;
printf ("%d\n",temp);
TIM_SetCompare2(TIM3,temp); //11
TIM_SetCompare1(TIM3,temp);
delay_ms(1000);
if(temp>32)
{
temp=10;
}
}*/
//RX =USART_ReceiveData(USART1);//(USART1->DR); //????????
//printf ("%d\n",RX);
//delay_ms(100);
}
}
[/mw_shl_code]
发表于 2014-11-26 22:53:15
