【求助】在μC/OSIII的例程里加入ADC，串口浮点数输出不正确

contemplator · 发表于 2017-3-30 11:28:08

本帖最后由 contemplator 于 2017-3-30 11:30 编辑

搞了三天了都没有头绪，求大神帮助，使用的是野火V2开发板
在μC/OSIII的例程里加入ADC(操作系统+ADC+串口)，串口浮点数输出不正确；
没加入ADC时（操作系统+串口）一切正常，
ADC的库函数工程（ADC+串口）也一切正常
以下是任务函数：

static void AppTaskLed1 ( void * p_arg )
{
OS_ERR err;
__IO uint16_t i,j,k,middle,x=96,y=10;
float total1,total2,After_filter[10],ceshi1=1.234678;//′æ·ÅÔËËãoóμÄ16½øÖÆμçÑ1Öμ
(void)p_arg;
/*Task body, always written as an infinite loop. */
while (DEF_TRUE) {
/*macLED1_TOGGLE ();
OSTimeDly ( 1000, OS_OPT_TIME_DLY, & err ); */
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
OSTimeDlyHMSM(0, 0,0,100,OS_OPT_TIME_HMSM_STRICT,&err);
ADC_SoftwareStartConvCmd(ADC1, DISABLE);
//count(96,10,&ADC_Conver[0][0]);
for(j=0;j<y;j++)
{
if(j<y-2)//¼ÆËãÇ°n-2áDμÄÕæóDD§Öμ
{
total1=0;//′æ·Å¾ù·½¸ùÖμ
total2=0;//′æ·ÅÆ½¾ùÖμ
for(i=0;i<x;i++)
{ middle=ADC_Conver[i][j];
total1=total1+middle*middle;
total2=total2+middle;
}
After_filter[j]=sqrt(total1/x-(total2/x)*(total2/x));//¼ÆËãÕæóDD§Öμ
}
if(j==y-2)//¼ÆËãμún-1áDμÄÆ½¾ùÖμ
{
total2=0;//′æ·ÅÆ½¾ùÖμ
for(i=0;i<x;i++)
{ middle=ADC_Conver[i][j];
total2=total2+middle;
}
After_filter[j]=total2/x;
}
if(j==y-1)//×îoóò»áD￡¬ÇóÆ½¾ùÖμ
{
total2=0;//′æ·ÅÆ½¾ùÖμ
for(i=0;i<x;i++)
{
middle=ADC_Conver[i][j];
total2=total2+middle;
}
After_filter[j]=total2/x;
}
}
//½«¼ÆËã½á1û×a»ˉÎaêμ¼êÖμ
for(k=0;k<y;k++)
{
ADC_Value[k]=After_filter[k]/4096*3.3;
}
//ADC_ConvertedValueLocal =(float) ADC_ConvertedValue/4096*3.3; // ?????AD?
for(j=0;j<10;j++)
{ printf("\r\n ADC_ConvertedValue[%d] = %d\r\n",j,ADC_Conver[50][j]);
printf("\r\n ADC_ConvertedValueLocal[%d] = %f V \r\n",j, ADC_Value[j]);
printf("\r\n ceishi1,yaoshihaibudui,qnmd = %f V \r\n", ceshi1);
}
OSTimeDlyHMSM(0, 0,0,200,OS_OPT_TIME_HMSM_STRICT,&err);
}
}

复制代码

以下是ADC配置：

/*************DÅoÅ2é¼ˉoˉêy*******************/
/*
**oˉêy1|Äü:ADCDÅoÅμÄ2é¼ˉoí′|àí
**¸÷DÅoÅí¨μà:
**
** 1ü½Å í¨μà DÅoÅ
** PA1 ADC123_IN1 Vol_A AÏàμçÑ1
** PA2 ADC123_IN2 Vol_B BÏàμçÑ1
** PA3 ADC123_IN3 Vol_C CÏàμçÑ1
** PB1 ADC123_IN9 áãDòμçÑ1
** PC0 ADC123_IN10 Cir_A AÏàμçá÷
** PC1 ADC123_IN11 Cir_B BÏàμçá÷
** PC2 ADC123_IN12 Cir_C CÏàμçá÷
** PC3 ADC123_IN13 áãDòμçá÷
** PC4 ADC12 _IN14 Ö±á÷μçá÷Öμ
** PC5 ADC12 _IN15
**
**
***********/
#include "adc.h"
#include "Usart.h"
#include "math.h"
//oê¶¨òå
// #define N 95// Ã¿¸öí¨μà¾ù·ÖμÄ·Yêy
// #define M 10 //í¨μàêy
#define ADC1_DR_Address ((u32)0x40012400+0x4c)
//2é¼ˉêy¾Y′æ·ÅμÄêy×é
__IO uint16_t ADC_Conver[96][10];//uint16_t ADC_Conver[96][10];
//float ADC_Value[10];//¼ÆËãμÄê®½øÖÆμÄμçÑ1Öμ
/*
* oˉêyÃû:ADC1_GPIO_Config
* 1|Äü :ÅäÖÃADC1μÄDMA1′«êä,¿aÆôÏàó|μÄIO¿ú
* êäèë : ÎT
* êä3ö : ÎT
* μ÷óÃ :Äú2¿μ÷óÃ
*/
static void ADC1_GPIO_Ceshi_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable DMA clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
/* Enable ADC1 and GPIOC clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_GPIOA| RCC_APB2Periph_GPIOB| RCC_APB2Periph_GPIOC, ENABLE);
/* Configure PA1/PA2/PA3 as analog input */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//PB1ÅäÖÃÎaÄ￡ÄaêäèëÄ￡ê½
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOB, &GPIO_InitStructure);
//ÅäÖÃPC0-PC5ÎaÄ￡ÄaêäèëÄ￡ê½
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOC, &GPIO_InitStructure);
}
/* oˉêyÃû:ADC1_Mode_Config
* 1|Äü :¿aÆôADC1μÄDMA′«êä
* êäèë : ¡¡ÎT
* êä3ö :ÎT
* μ÷óÃ :Äú2¿μ÷óÃ
*/
static void ADC1_Mode_Ceshi_Config(void)
{
DMA_InitTypeDef DMA_InitStructure;
ADC_InitTypeDef ADC_InitStructure;
/* DMA channel1 configuration */
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address; //ADCÔ′μØÖ·
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&ADC_Conver;//êy¾Y×a»»oóμÄ′æ·ÅμØÖ·
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize =960 ;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;//íaéèÔö3¤Ä￡ê½1Ø±Õ
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; //′æêyÇøÔö3¤Ä￡ê½ê1Äü
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord; //°ë¸ö×Ö½úêy¾Y′«êä
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular; //¿aÆôDMAÑ-»·Ä￡ê½
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel1, &DMA_InitStructure);
/* ADC1 configuration */
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent; //ÅäÖÃADCÎa¶àá￠Ä￡ê½
ADC_InitStructure.ADC_ScanConvMode = ENABLE ; //ê1óÃ¶à¸öí¨μà2é¼ˉ￡¬ê1Äüé¨ÃèÄ￡ê½
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE; //Dèòa¶Ô¶à¸öí¨μà½øDDá¬Dø2é¼ˉêy¾Y,¿aÆôADCμÄá¬Dø×a»»Ä￡ê½
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; //Ôú×a»»êÇê1óÃèí¼t′￥·￠
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //2é¼ˉêy¾Yóò¶ÔÆë
ADC_InitStructure.ADC_NbrOfChannel = 10; //2éÑùμÄí¨μàêy10
ADC_Init(ADC1, &ADC_InitStructure);
/*?ÅäÖÃADCê±Öó,ÎaPCLK2μÄ6·ÖÆμ,¼′12MHz*/
RCC_ADCCLKConfig(RCC_PCLK2_Div6);
/*ÅäÖÃADC1¸öí¨μà2éÑùÖüÆúÎa237.5. 5¸öÖüÆú, */
ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 1, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 2, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 3, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 4, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 5, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_11, 6, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_12, 7, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_13, 8, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 9, ADC_SampleTime_239Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_15, 10, ADC_SampleTime_239Cycles5);
/* Enable ADC1 DMA */
ADC_DMACmd(ADC1, ENABLE);
/* Enable ADC1 */
ADC_Cmd(ADC1, ENABLE);
/*ÖØÖÃADCμÄD￡ÑéÎ» */
ADC_ResetCalibration(ADC1);
/*μè′yADCD￡Ñé¿aÆô */
while(ADC_GetResetCalibrationStatus(ADC1));
/* ADCD￡Ñé */
ADC_StartCalibration(ADC1);
/* μè′yADCD￡Ñé½áêø*/
while(ADC_GetCalibrationStatus(ADC1));
/* Æô¶ˉADCD￡Ñé */
DMA_Cmd(DMA1_Channel1, ENABLE);
// ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}
/*
* oˉêyÃû:ADC1_Init
* êäèë :ÎT
* êä3ö :ÎT
* ·μ»Ø :ÎT
* μ÷óÃ :ía2¿μ÷óÃ
*/
void ADC1_Ceshi_Init(void)
{
ADC1_GPIO_Ceshi_Config();
ADC1_Mode_Ceshi_Config();
}

复制代码

随风 · 发表于 2017-3-30 13:55:19

ucosiii使用浮点运算单元的时候，启动文件要有专门的修改的，可以看看野火F4的ucos例程

contemplator · 发表于 2017-3-30 14:16:50

随风发表于 2017-3-30 13:55
ucosiii使用浮点运算单元的时候，启动文件要有专门的修改的，可以看看野火F4的ucos例程

我这里用得是野火F103的V2开发板

contemplator · 发表于 2017-3-30 14:52:27

随风发表于 2017-3-30 13:55
ucosiii使用浮点运算单元的时候，启动文件要有专门的修改的，可以看看野火F4的ucos例程

解决了，就是8字节对齐，谢谢了！
__align(8) static OS_STK TaskStartStk[TASK_START_STK_SIZE];如果你没有修改过arm的启动代码可能就会出现这个问题

flyleaf · 发表于 2017-3-30 16:20:52

contemplator 发表于 2017-3-30 14:52
解决了，就是8字节对齐，谢谢了！
__align(8) static OS_STK TaskStartStk[TASK_START_STK_SIZE];如果你 ...

不错不错

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【求助】在μC/OSIII的例程里加入ADC，串口浮点数输出不正确

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