#include?“adc.h“
#include?“bsp_matrix.h“



void?ADC_GPIO_Configuration（void）????????//ADC配置函數??
{??
??GPIO_InitTypeDef?GPIO_InitStructure;??
??RCC_APB2PeriphClockCmd（RCC_APB2Periph_ADC1|RCC_APB2Periph_GPIOA?ENABLE）;???//使能ADC和GPIOA時鐘????????????????????????
??GPIO_InitStructure.GPIO_Pin?=?GPIO_Pin_2;????????//管腳2??
??GPIO_InitStructure.GPIO_Mode?=?GPIO_Mode_AIN;????//模擬輸入模式??
??GPIO_Init（GPIOA?&GPIO_InitStructure）;?????//GPIO組??
}??


//定時器初始化??
void?TIM2_Configuration（void）??
{???
?TIM_TimebaseInitTypeDef?TIM_TimebaseStructure;???
?TIM_OCInitTypeDef?TIM_OCInitStructure;???
?RCC_APB1PeriphClockCmd（RCC_APB1Periph_TIM2??ENABLE）;???
?TIM_TimebaseStructure.TIM_Period?=?24;//設置25us一次TIM2比較的周期??40KHz
?TIM_TimebaseStructure.TIM_Prescaler?=?71;//系統主頻72M，這里分頻71，相當于1000K的定時器2時鐘???
?TIM_TimebaseStructure.TIM_ClockDivision?=?0x0;???
?TIM_TimebaseStructure.TIM_CounterMode?=?TIM_CounterMode_Up;??
?TIM_TimebaseInit（TIM2?&?TIM_TimebaseStructure）;??
??????
?TIM_OCInitStructure.TIM_OCMode?=?TIM_OCMode_PWM1;//下面詳細說明???
?TIM_OCInitStructure.TIM_OutputState?=?TIM_OutputState_Enable;//TIM_OutputState_Disable;???
?TIM_OCInitStructure.TIM_Pulse?=?12;???
?TIM_OCInitStructure.TIM_OCPolarity?=?TIM_OCPolarity_Low;//如果是PWM1要為Low，PWM2則為High???
?TIM_OC2Init（TIM2?&?TIM_OCInitStructure）;?????
//?TIM_InternalClockConfig（TIM2）;??
//?TIM_OC2PreloadConfig（TIM2?TIM_OCPreload_Enable）;???
//?TIM_UpdateDisableConfig（TIM2?DISABLE）;??
}??
//ADC_DMA初始化配置??
void?ADC_DMA_Config（void）??
{??
??DMA_InitTypeDef?DMA_InitStructure;?//?注：ADC為12位模數轉換器，只有ADCConvertedValue的低12位有效??
	NVIC_InitTypeDef?NVIC_InitStructure;?
	
??RCC_AHBPeriphClockCmd（RCC_AHBPeriph_DMA1?ENABLE）;//使能DMA時鐘??
??DMA_DeInit（DMA1_Channel1）;//開啟DMA1的第一通道???
??DMA_InitStructure.DMA_PeripheralbaseAddr?=?（unsigned?long）（&ADC1->DR）;//DMA對應的外設基地址??
??DMA_InitStructure.DMA_MemorybaseAddr?=?（uint32_t）bufferB;?//內存存儲基地址??
??DMA_InitStructure.DMA_DIR?=?DMA_DIR_PeripheralSRC;?//DMA的轉換模式為SRC模式，由外設搬移到內存??
??DMA_InitStructure.DMA_BufferSize?=?256;							//DMA緩存大小，256個??
??DMA_InitStructure.DMA_PeripheralInc?=?DMA_PeripheralInc_Disable;?//接收一次數據后，設備地址禁止后移??
??DMA_InitStructure.DMA_MemoryInc?=?DMA_MemoryInc_Enable;?//接收一次數據后，目標內存地址后移??
??DMA_InitStructure.DMA_PeripheralDataSize?=?DMA_PeripheralDataSize_HalfWord;//定義外設數據寬度為16位??
??DMA_InitStructure.DMA_MemoryDataSize?=?DMA_MemoryDataSize_HalfWord;?//DMA搬移數據尺寸，HalfWord就是為16位??
??DMA_InitStructure.DMA_Mode?=DMA_Mode_Circular;//循環轉換模式??
??DMA_InitStructure.DMA_Priority?=?DMA_Priority_High;//DMA優先級高??
??DMA_InitStructure.DMA_M2M?=?DMA_M2M_Disable;//M2M模式禁用??
	
	//中斷配置????
	NVIC_PriorityGroupConfig（NVIC_PriorityGroup_1）;??
	NVIC_InitStructure.NVIC_IRQChannel?=DMA1_Channel1_IRQn;????
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority?=?0;??
	NVIC_InitStructure.NVIC_IRQChannelSubPriority?=?0;???
	NVIC_InitStructure.NVIC_IRQChannelCmd?=?ENABLE;??
	NVIC_Init（&NVIC_InitStructure）;??
	
	
??DMA_Init（DMA1_Channel1?&DMA_InitStructure

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????5791??2018-03-15?14:24??ADC\adc.c

?????文件????????134??2018-03-15?17:02??ADC\adc.h

?????目錄??????????0??2018-03-15?17:02??ADC

-----------?---------??----------?-----??----

?????????????????5925????????????????????3