ADS1256驱动源码.H

whl876954091 · 发表于 2021-5-13 16:55:16

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#ifndef __MYIIC_H
#define __MYIIC_H
#include "sys.h"
//////////////////////////////////////////////////////////////////////////////////
//技术论坛:www.openedv.com
//修改日期:2012/9/9
//版本：V1.0
//版权所有，盗版必究。
//////////////////////////////////////////////////////////////////////////////////

//IO方向设置

#define SDA_IN()  {GPIOB->CRL&=0X0FFFFFFF;GPIOB->CRL|=(u32)8<<28;}
#define SDA_OUT() {GPIOB->CRL&=0X0FFFFFFF;GPIOB->CRL|=(u32)3<<28;}

//IO操作函数
#define IIC_SCL PBout(6) //SCL
#define IIC_SDA PBout(7) //SDA
#define READ_SDA PBin(7)  //输入SDA

//IIC所有操作函数
void IIC_Init(void);             //初始化IIC的IO口
void IIC_Start(void);             //发送IIC开始信号
void IIC_Stop(void);                //发送IIC停止信号
void IIC_Send_Byte(u8 txd);          //IIC发送一个字节
u8 IIC_Read_Byte(unsigned char ack);//IIC读取一个字节
u8 IIC_Wait_Ack(void);                //IIC等待ACK信号
void IIC_Ack(void);                   //IIC发送ACK信号
void IIC_NAck(void);             //IIC不发送ACK信号

void IIC_Write_One_Byte(u8 daddr,u8 addr,u8 data);
u8 IIC_Read_One_Byte(u8 daddr,u8 addr);
#endif

/****************************************************************************************************************************************************/

/*
*********************************************************************************************************
*                                              康威科技
* 模块名称 : ADS1256 驱动模块(8通道带PGA的24位ADC)
* 文件名称 : bsp_ads1256.h
*
*********************************************************************************************************
*/
/*
ADS1256模块 STM32开发板
   +5V <------  5.0V    5V供电
   GND -------  GND    地

   DRDY  ------>  PE15    准备就绪
   CS <------  PB10    SPI_CS
   DIN <------  PB15    SPI_MOSI
   DOUT  ------>  PB14    SPI_MISO
   SCLK  <------  PB13    SPI时钟
   GND -------  GND    地
   PDWN  <------  PB11    掉电控制常高
   RST <------  PB12    复位信号常高
   NC 空脚
   NC 空脚
*/
#ifndef _BSP_ADS1256_H
#define _BSP_ADS1256_H

#define RCC_SCK    RCC_APB2Periph_GPIOB
#define PORT_SCK GPIOB
#define PIN_SCK       GPIO_Pin_13

#define RCC_DIN    RCC_APB2Periph_GPIOB
#define PORT_DIN GPIOB
#define PIN_DIN       GPIO_Pin_15

#define RCC_CS       RCC_APB2Periph_GPIOB
#define PORT_CS       GPIOB
#define PIN_CS       GPIO_Pin_10

#define RCC_DRDY    RCC_APB2Periph_GPIOE
#define PORT_DRDY GPIOE
#define PIN_DRDY GPIO_Pin_15

#define RCC_DOUT    RCC_APB2Periph_GPIOB
#define PORT_DOUT GPIOB
#define PIN_DOUT GPIO_Pin_14

#define RCC_SYNC    RCC_APB2Periph_GPIOB
#define PORT_SYNC GPIOB
#define PIN_SYNC GPIO_Pin_11

#define RCC_RST    RCC_APB2Periph_GPIOB
#define PORT_RST GPIOB
#define PIN_RST       GPIO_Pin_12

/*teset*/
// #define RCC_SCK    RCC_APB2Periph_GPIOC
// #define PORT_SCK GPIOC
// #define PIN_SCK       GPIO_Pin_0

// #define RCC_DIN    RCC_APB2Periph_GPIOC
// #define PORT_DIN GPIOC
// #define PIN_DIN       GPIO_Pin_1

// #define RCC_CS       RCC_APB2Periph_GPIOC
// #define PORT_CS       GPIOC
// #define PIN_CS       GPIO_Pin_2

// #define RCC_DRDY    RCC_APB2Periph_GPIOC
// #define PORT_DRDY GPIOC
// #define PIN_DRDY GPIO_Pin_3

// #define RCC_DOUT    RCC_APB2Periph_GPIOC
// #define PORT_DOUT GPIOC
// #define PIN_DOUT GPIO_Pin_4

// #define RCC_SYNC    RCC_APB2Periph_GPIOC
// #define PORT_SYNC GPIOC
// #define PIN_SYNC GPIO_Pin_5
//
// #define RCC_RST    RCC_APB2Periph_GPIOC
// #define PORT_RST GPIOC
// #define PIN_RST       GPIO_Pin_6

//RST->HIGH PC13
//SYNC->HIGH PC8
/* 定义口线置0和置1的宏 */
#define CS_0()       GPIO_ResetBits(PORT_CS, PIN_CS)
#define CS_1()       GPIO_SetBits(PORT_CS, PIN_CS)

#define SCK_0()       GPIO_ResetBits(PORT_SCK, PIN_SCK)
#define SCK_1()       GPIO_SetBits(PORT_SCK, PIN_SCK)

#define DI_0()       GPIO_ResetBits(PORT_DIN, PIN_DIN)
#define DI_1()       GPIO_SetBits(PORT_DIN, PIN_DIN)

#define SYNC_0()       GPIO_ResetBits(PORT_SYNC, PIN_SYNC)
#define SYNC_1()       GPIO_SetBits(PORT_SYNC, PIN_SYNC)

#define RST_0()       GPIO_ResetBits(PORT_RST, PIN_RST)
#define RST_1()       GPIO_SetBits(PORT_RST, PIN_RST)

#define DO_IS_HIGH() (GPIO_ReadInputDataBit(PORT_DOUT, PIN_DOUT) == Bit_SET)

#define DRDY_IS_LOW() (GPIO_ReadInputDataBit(PORT_DRDY, PIN_DRDY) == Bit_RESET)

/* 增益选项 */
typedef enum
{
ADS1256_GAIN_1          = (0), /* 增益1（缺省）默认值*/
ADS1256_GAIN_2          = (1), /* 增益2 */
ADS1256_GAIN_4          = (2), /* 增益4 */
ADS1256_GAIN_8          = (3), /* 增益8 */
ADS1256_GAIN_16          = (4), /* 增益16 */
ADS1256_GAIN_32          = (5), /* 增益32 */
ADS1256_GAIN_64          = (6), /* 增益64 */
}ADS1256_GAIN_E;

/* 采样速率选项 */
/* 数据转换率选择
11110000 = 30,000SPS (default)
11100000 = 15,000SPS
11010000 = 7,500SPS
11000000 = 3,750SPS
10110000 = 2,000SPS
10100001 = 1,000SPS
10010010 = 500SPS
10000010 = 100SPS
01110010 = 60SPS
01100011 = 50SPS
01010011 = 30SPS
01000011 = 25SPS
00110011 = 15SPS
00100011 = 10SPS
00010011 = 5SPS
00000011 = 2.5SPS
*/
typedef enum
{
ADS1256_30000SPS = 0,
ADS1256_15000SPS,
ADS1256_7500SPS,
ADS1256_3750SPS,
ADS1256_2000SPS,
ADS1256_1000SPS,
ADS1256_500SPS,
ADS1256_100SPS,
ADS1256_60SPS,
ADS1256_50SPS,
ADS1256_30SPS,
ADS1256_25SPS,
ADS1256_15SPS,
ADS1256_10SPS,
ADS1256_5SPS,
ADS1256_2d5SPS,

ADS1256_DRATE_MAX
}ADS1256_DRATE_E;

#define ADS1256_DRAE_COUNT = 15;

typedef struct
{
ADS1256_GAIN_E Gain;       /* 增益 */
ADS1256_DRATE_E DataRate; /* 数据输出速率 */
int32_t AdcNow[8];          /* 8路ADC采集结果（实时）有符号数 */
uint8_t Channel;          /* 当前通道 */
uint8_t ScanMode;          /* 扫描模式，0表示单端8路， 1表示差分4路 */
}ADS1256_VAR_T;

void bsp_InitADS1256(void);
void ADS1256_CfgADC(ADS1256_GAIN_E _gain, ADS1256_DRATE_E _drate);

uint8_t ADS1256_ReadChipID(void);
void ADS1256_StartScan(uint8_t _ucScanMode);
void ADS1256_StopScan(void);
int32_t ADS1256_GetAdc(uint8_t _ch);

extern ADS1256_VAR_T g_tADS1256;

#endif