?? setadc.c
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/******************************************************************************/
/* SETUP.C: Setup Functions */
/******************************************************************************/
/* This file is part of the uVision/ARM development tools. */
/* Copyright (c) 2005-2007 Keil Software. All rights reserved. */
/* This software may only be used under the terms of a valid, current, */
/* end user licence from KEIL for a compatible version of KEIL software */
/* development tools. Nothing else gives you the right to use this software. */
/******************************************************************************/
#include <stm32f10x_lib.h> /* STM32F10x Library Definitions */
//#include "UET_GPIO.h"
#define ADC1_DR_Address ((u32)0x4001244C) //參考編程手冊第二章及相關寄存器偏移地址得出
unsigned short int ADC_ConvertedValue[9]={0};
ADC_InitTypeDef ADC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
void SetupADC (void)
{
// /* Configure PC0-PC5 (ADC Channel10-Channel5) as analog input */
// 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);
/* DMA Channel1 Configuration ----------------------------------------------*/
DMA_DeInit(DMA_Channel1); //將通道1的相關寄存器復位為默認值
DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;//外設地址
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&ADC_ConvertedValue;//內存地址
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;//dma傳輸方向單向
DMA_InitStructure.DMA_BufferSize = 9;//設置DMA在傳輸時緩沖區的長度 word
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;//設置DMA的外設遞增模式,一個外設
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;//設置DMA的內存遞增模式
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;//外設數據字長 16bits
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;//內存數據字長 16bits
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;//設置DMA的傳輸模式:連續不斷的循環模式
DMA_InitStructure.DMA_Priority = DMA_Priority_High;//設置DMA的優先級別
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;//設置DMA的2個memory中的變量互相訪問
DMA_Init(DMA_Channel1, &DMA_InitStructure);//設置新的通道寄存器值
DMA_Cmd(DMA_Channel1, ENABLE); /* Enable DMA Channel1 */
/* ADC1 Configuration (ADC1CLK = 12 MHz) -----------------------------------*/
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 9;//9個通道
ADC_Init(ADC1, &ADC_InitStructure);
/* ADC1 Regular Channel Configuration */
ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 1, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 2, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 3, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 4, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_11, 5, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_12, 6, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_13, 7, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 8, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_15, 9, ADC_SampleTime_55Cycles5);
// ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 10, ADC_SampleTime_55Cycles5);
// ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 11, ADC_SampleTime_55Cycles5);
// ADC_RegularChannelConfig(ADC1, ADC_Channel_11, 12, ADC_SampleTime_55Cycles5);
// ADC_RegularChannelConfig(ADC1, ADC_Channel_12, 13, ADC_SampleTime_55Cycles5);
// ADC_RegularChannelConfig(ADC1, ADC_Channel_13, 14, ADC_SampleTime_55Cycles5);
// ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 15, ADC_SampleTime_55Cycles5);
// ADC_RegularChannelConfig(ADC1, ADC_Channel_15, 16, ADC_SampleTime_55Cycles5);
/* Enable JEOC interupt */
ADC_ITConfig(ADC1, ADC_IT_EOC, ENABLE);
ADC_DMACmd(ADC1, ENABLE); /* Enable ADC1's DMA interface */
ADC_Cmd (ADC1, ENABLE); /* Enable ADC1 */
/* Enable ADC1 reset calibaration register */
ADC_ResetCalibration(ADC1);
/* Check the end of ADC1 reset calibration register */
while(ADC_GetResetCalibrationStatus(ADC1)){};
/* Start ADC1 calibaration */
ADC_StartCalibration(ADC1);
/* Check the end of ADC1 calibration */
while(ADC_GetCalibrationStatus(ADC1)){};
ADC_SoftwareStartConvCmd(ADC1,ENABLE);/* Start ADC1 Software Conversion */
}
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