Merhabalar proje gereği stabil bir şekilde DMA ile ADC okuması yapmam gerekiyor.Fakat aşağıdaki gibi yaptığımda ADC okuması yapamadım.Yardımcı olursanız sevinirim.
#include "stm32f4xx.h" // Device header
#include "stm32f4xx_adc.h" // Keil::Device:StdPeriph Drivers:ADC
#include "stm32f4xx_dma.h" // Keil::Device:StdPeriph Drivers:DMA
#include "stm32f4xx_gpio.h" // Keil::Device:StdPeriph Drivers:GPIO
#include "stm32f4xx_rcc.h" // Keil::Device:StdPeriph Drivers:RCC
#include "defines.h"
#include "tm_stm32f4_usart.h"
#include "stdlib.h"
#include <stdio.h>
uint16_t ADC_ValArray1[7];
uint16_t ADC_ValArray2[8];
uint16_t ADC_ValArray3[7];
void USART_Puts(USART_TypeDef* USARTx, volatile char *s)
{
while(*s){
while ( !(USARTx -> SR & 0x00000040));
USART_SendData(USARTx, *s);
*s++;
}}
void GPIOA_Init(void){
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 |GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
void GPIOB_Init(void){
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 ;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
void GPIOC_Init(void){
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
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_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
}
void GPIOF_Init(void){
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOF,ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AIN;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 |GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_Init(GPIOF, &GPIO_InitStructure);
}
void ekrangonder(char nesne[],char deger[]){
TM_USART_Puts(USART1,nesne);
TM_USART_Putc(USART1,'"');
TM_USART_Puts(USART1,deger);
TM_USART_Putc(USART1,'"');
TM_USART_Putc(USART1,0xFF);
TM_USART_Putc(USART1,0xFF);
TM_USART_Putc(USART1,0xFF);
}
void Init_ADC1(void){
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_TwoSamplingDelay= ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInit(&ADC_CommonInitStructure);
ADC_InitStructure.ADC_Resolution = ADC_Resolution_10b;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 4;
ADC_Init(ADC1,&ADC_InitStructure);
ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 1, ADC_SampleTime_144Cycles); // PA1
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 1, ADC_SampleTime_144Cycles); // PA2
ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 1, ADC_SampleTime_144Cycles); // PA3
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 1, ADC_SampleTime_144Cycles); // PA4
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 1, ADC_SampleTime_144Cycles); // PA5
ADC_RegularChannelConfig(ADC1, ADC_Channel_6, 1, ADC_SampleTime_144Cycles); // PA6
ADC_RegularChannelConfig(ADC1, ADC_Channel_7, 1, ADC_SampleTime_144Cycles); // PA7
ADC_Cmd(ADC1, ENABLE);
}
//**********************************************************************************************************************//
void Init_ADC2(void){
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC2, ENABLE);
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_TwoSamplingDelay= ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInit(&ADC_CommonInitStructure);
ADC_InitStructure.ADC_Resolution = ADC_Resolution_10b;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 4;
ADC_Init(ADC2,&ADC_InitStructure);
ADC_RegularChannelConfig(ADC2, ADC_Channel_8, 1, ADC_SampleTime_144Cycles); // PB0
ADC_RegularChannelConfig(ADC2, ADC_Channel_9, 1, ADC_SampleTime_144Cycles); // PB1
ADC_RegularChannelConfig(ADC2, ADC_Channel_10, 1, ADC_SampleTime_144Cycles); // PC0
ADC_RegularChannelConfig(ADC2, ADC_Channel_11, 1, ADC_SampleTime_144Cycles); // PC1
ADC_RegularChannelConfig(ADC2, ADC_Channel_12, 1, ADC_SampleTime_144Cycles); // PC2
ADC_RegularChannelConfig(ADC2, ADC_Channel_13, 1, ADC_SampleTime_144Cycles); // PC3
ADC_RegularChannelConfig(ADC2, ADC_Channel_14, 1, ADC_SampleTime_144Cycles); // PC4
ADC_RegularChannelConfig(ADC2, ADC_Channel_15, 1, ADC_SampleTime_144Cycles); // PC5
ADC_Cmd(ADC2, ENABLE);
}
////*************************///////////////////////**********************/////////////////////*********************/////////////////////////////////*********
void Init_ADC3(void){
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC3, ENABLE);
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div2;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_TwoSamplingDelay= ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInit(&ADC_CommonInitStructure);
ADC_InitStructure.ADC_Resolution = ADC_Resolution_10b;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 4;
ADC_Init(ADC3,&ADC_InitStructure);
ADC_RegularChannelConfig(ADC3,ADC_Channel_3,1,ADC_SampleTime_144Cycles);
ADC_RegularChannelConfig(ADC3, ADC_Channel_14, 1, ADC_SampleTime_144Cycles); // PF4
ADC_RegularChannelConfig(ADC3, ADC_Channel_15, 1, ADC_SampleTime_144Cycles); // PF5
ADC_RegularChannelConfig(ADC3, ADC_Channel_4, 1, ADC_SampleTime_144Cycles); // PF6
ADC_RegularChannelConfig(ADC3, ADC_Channel_5, 1, ADC_SampleTime_144Cycles); // PF7
ADC_RegularChannelConfig(ADC3, ADC_Channel_6, 1, ADC_SampleTime_144Cycles); // PF8
ADC_RegularChannelConfig(ADC3, ADC_Channel_7, 1, ADC_SampleTime_144Cycles); // PF9
ADC_RegularChannelConfig(ADC3, ADC_Channel_8, 1, ADC_SampleTime_144Cycles); // PF10
ADC_Cmd(ADC3, ENABLE);
}
void DMA_CH0(){
DMA_InitTypeDef DMA_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2,ENABLE);
DMA_InitStructure.DMA_Channel=DMA_Channel_0;
DMA_InitStructure.DMA_PeripheralBaseAddr=(uint32_t) 0x4001204C; //4001214C ADC2 4001224C
DMA_InitStructure.DMA_Memory0BaseAddr=(uint32_t) ADC_ValArray1;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = 4;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
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_FIFOMode = DMA_FIFOMode_Disable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA2_Stream0, &DMA_InitStructure);
DMA_Cmd(DMA2_Stream0, ENABLE);
Init_ADC1();
ADC_DMARequestAfterLastTransferCmd(ADC1,ENABLE);
ADC_DMACmd(ADC1,ENABLE);
}
void DMA_CH1(){
DMA_InitTypeDef DMA_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2,ENABLE);
DMA_InitStructure.DMA_Channel=DMA_Channel_1;
DMA_InitStructure.DMA_PeripheralBaseAddr=(uint32_t) 0x4001214C; //4001214C ADC2 4001224C
DMA_InitStructure.DMA_Memory0BaseAddr=(uint32_t) ADC_ValArray2;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = 4;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
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_FIFOMode = DMA_FIFOMode_Disable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA2_Stream2, &DMA_InitStructure);
DMA_Cmd(DMA2_Stream2, ENABLE);
Init_ADC2();
ADC_DMARequestAfterLastTransferCmd(ADC2,ENABLE);
ADC_DMACmd(ADC2,ENABLE);
}
void DMA_CH2(){
DMA_InitTypeDef DMA_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2,ENABLE);
DMA_InitStructure.DMA_Channel=DMA_Channel_2;
DMA_InitStructure.DMA_PeripheralBaseAddr=(uint32_t) 0x4001224C; //4001214C ADC2 4001224C
DMA_InitStructure.DMA_Memory0BaseAddr=(uint32_t) ADC_ValArray3;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
DMA_InitStructure.DMA_BufferSize = 4;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
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_FIFOMode = DMA_FIFOMode_Disable;
DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;
DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
DMA_Init(DMA2_Stream0, &DMA_InitStructure);
DMA_Cmd(DMA2_Stream0, ENABLE);
Init_ADC3();
ADC_DMARequestAfterLastTransferCmd(ADC3,ENABLE);
ADC_DMACmd(ADC3,ENABLE);
}
int main(){
uint8_t c;
SystemInit();
//PA9 TX PA10 RX
TM_USART_Init(USART1,TM_USART_PinsPack_1,9600);
GPIOA_Init();
GPIOB_Init();
GPIOC_Init();
GPIOF_Init();
DMA_CH0();
DMA_CH1();
DMA_CH2();
ADC_SoftwareStartConv(ADC1);
ADC_SoftwareStartConv(ADC2);
ADC_SoftwareStartConv(ADC3);
char buf1[100];
char buf2[100];
char buf3[100];
while(1){
for(uint8_t i; i<=6 ; i++){
sprintf(buf1,"%d",ADC_ValArray1[i]);
TM_USART_Puts(USART1,buf1);
USART_Puts(USART1,"a1");
}
for(uint8_t j; j<=7 ; j++){
sprintf(buf2,"%d",ADC_ValArray2[j]);
TM_USART_Puts(USART1,buf2);
USART_Puts(USART1,"a2");
}
for(uint8_t k; k<=7 ; k++){
sprintf(buf3,"%d",ADC_ValArray3[k]);
TM_USART_Puts(USART1,buf3);
USART_Puts(USART1,"a3");
}
}
}