#include?“main.h“
#include?“stm32f4xx.h“

void?ADS131_Init（void）?
{
	GPIO_InitTypeDef????GPIO_InitStructure;??
??NVIC_InitTypeDef????NVIC_InitStructure;??
??EXTI_InitTypeDef????EXTI_InitStructure;??
	
	RCC_AHB1PeriphClockCmd（RCC_AHB1Periph_GPIOA?ENABLE）;
	RCC_AHB1PeriphClockCmd（RCC_AHB1Periph_GPIOB?ENABLE）;
	RCC_AHB1PeriphClockCmd（RCC_AHB1Periph_GPIOC?ENABLE）;?
//ADS131?RST腳??
??GPIO_InitStructure.GPIO_Pin?=?ADS131_RST_PIN;??
??GPIO_InitStructure.GPIO_Mode?=?GPIO_Mode_OUT;//普通輸出模式??
??GPIO_InitStructure.GPIO_OType?=?GPIO_OType_PP;//推挽輸出??
??GPIO_InitStructure.GPIO_Speed?=?GPIO_Speed_50MHz;//100MHz??
??GPIO_InitStructure.GPIO_PuPd?=?GPIO_PuPd_UP;//上拉??
??GPIO_Init（ADS131_RST_PORT?&GPIO_InitStructure）;??
??ADS131_RST_H;//RST?高電平
//ADS131?CS腳??
??GPIO_InitStructure.GPIO_Pin?=?ADS131_CS_PIN;??
??GPIO_InitStructure.GPIO_Mode?=?GPIO_Mode_OUT;//普通輸出模式??
??GPIO_InitStructure.GPIO_OType?=?GPIO_OType_PP;//推挽輸出??
??GPIO_InitStructure.GPIO_Speed?=?GPIO_Speed_50MHz;//100MHz??
??GPIO_InitStructure.GPIO_PuPd?=?GPIO_PuPd_UP;//上拉??
??GPIO_Init（ADS131_CS_PORT?&GPIO_InitStructure）;??
??ADS131_CS_H;//CS?高電平，先不選中
//ADS131?DRDY腳??
??GPIO_InitStructure.GPIO_Pin?=?ADS131_DRDY_PIN;??
??GPIO_InitStructure.GPIO_Mode?=?GPIO_Mode_IN;//普通輸入模式??
??GPIO_InitStructure.GPIO_Speed?=?GPIO_Speed_50MHz;//100M??
??GPIO_InitStructure.GPIO_PuPd?=?GPIO_PuPd_UP;//上拉??
??GPIO_Init（ADS131_DRDY_PORT?&GPIO_InitStructure）;?	
	
	MX_SPI1_Init（）;
//	SPI1_DMAInit（）;
}
void?HardwareReset（void）
{
	ADS131_RST_L;
	Delay_1ms（3）;
	ADS131_RST_H;
	Delay_1ms（10）;
}
//SPI1寫數據??
uint8_t?SPI1_WriteByte（uint8_t?TxBuffer）??
{??
	uint16_t?i;
	
??while（?（SPI1->SR?&SPI_SR_TXE）?==?0?）;??
??SPI1->DR=TxBuffer;??????????????????
??while（（SPI1->SR&SPI_SR_RXNE）==0）;??
??i=SPI1->DR;???
	return?i;	
}??
//SPI1讀數據??
uint8_t?SPI1_ReadByte（void）??
{?????????????
??while（（SPI1->SR&SPI_SR_TXE）==0）;??
??SPI1->DR=0x00;??
??while（（SPI1->SR&SPI_SR_RXNE）==0）;??
??return（SPI1->DR）;??????????
}
/*?write?a?command?to?ADS131a04?*/??
uint16_t?ADS131_WRITE_CMD（uint16_t?command）??
{??
		uint8_t?i;
		uint16_t?i_rec?=?0;
	
????ADS131_CS_L;??
		for（i=0;i<20;i++）;
		SPI1_WriteByte（（uint8_t）（command>>8））;
		SPI1_WriteByte（（uint8_t）（command））;
		SPI1_WriteByte（0x00）;
		SPI1_WriteByte（0x00）;
		ADS131_CS_H;??
		ADS131_CS_L;??
		for（i=0;i<20;i++）;
		i_rec?=?SPI1_ReadByte（）;
		i_rec?<<=?8;
		i_rec?|=?SPI1_ReadByte（）;
		SPI1_WriteByte（0x00）;
		SPI1_WriteByte（0x00）;
		ADS131_CS_H;??
		for（i=0;i<20;i++）;
????/*?Return?the?byte?read?from?the?SPI?bus?*/
		return?i_rec;
????//return?SPI_I2S_ReceiveData（SPI1）;?//返回通過SPIx最近接收的數據?
}?
/*?read?a?reg?*/??
uint16_t?ADS131_READ_REG（uint8_t?Addr）??
{
	uint16_t?regaddrregvalue;
	
	regaddr?=?RREG|Addr;
	regaddr?<<=?8;
	regaddr?|=?0x00;
	regvalue?=?ADS131_WRITE_CMD（regaddr）;
	return?regvalue;
}
/*?write?a?reg?*/?
uint16_t?ADS131_WRITE_REG（uint8_t?Addruint8_t?data）?
{
	uint16_t?regaddrregvalue;
	
	regad

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

?????文件???????4326??2018-03-15?20:50??ADS131.c

?????文件???????1535??2018-03-02?16:33??ADS131.h

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

?????????????????5861????????????????????2