类比半导体ADX122驱动

#ifndef __ADX122_H#define __ADX122_H//#include "stm32h7xx_hal.h"//#include "stm32g0xx_hal.h"#include "stm32f1xx.h"#include "bsp_lpspi.h"//#include "SPI.h"//#include "systick.h"
#define ADX122_ENABLE           Lpspi_Start()  //PULL DOWM CS START ADC#define ADX122_DISABLE          Lpspi_Stop()   //PULL UP CS STOP ADC
// Register Value#define ADX122_SS_START        0X8000    //Start ADC#define ADX122_NO_EFECT        0X0000    //NO Start ADC
#define ADX122_MUX_AIN0_AIN1   0X0000    //000 = AINP is AIN0 and AINN is AIN1 (default)#define ADX122_MUX_AIN0_AIN3   0x1000    //001 = AINP is AIN0 and AINN is AIN3#define ADX122_MUX_AIN1_AIN3   0X2000    //010 = AINP is AIN1 and AINN is AIN3#define ADX122_MUX_AIN2_AIN3   0X3000    //011 = AINP is AIN2 and AINN is AIN3#define ADX122_MUX_AIN0        0X4000    //100 = AINP is AIN0 and AINN is GND#define ADX122_MUX_AIN1        0X5000    //101 = AINP is AIN1 and AINN is GND#define ADX122_MUX_AIN2        0X6000    //110 = AINP is AIN2 and AINN is GND#define ADX122_MUX_AIN3        0X7000    //111 = AINP is AIN3 and AINN is GND
#define ADX122_PGA_6144        0X0000    //000 = FSR is ±6.144 V#define ADX122_PGA_4096        0X0200    //001 = FSR is ±4.096 V#define ADX122_PGA_2048        0X0400    //010 = FSR is ±2.048 V (default)#define ADX122_PGA_1024        0X0600    //011 = FSR is ±1.024 V#define ADX122_PGA_0512        0X0800    //100 = FSR is ±0.512 V#define ADX122_PGA_0256        0X0A00    //101 = FSR is ±0.256 V
#define ADX122_Continuous_MODE 0X0000    //0->Continuous#define ADX122_Sigle_SHOT_MODE 0X0100    //1->SIGNEL ADC
#define ADX122_DR_10SPS        0X0000    //000 = 10 SPS#define ADX122_DR_20SPS        0X0020    //001 = 20 SPS#define ADX122_DR_40SPS        0X0040    //010 = 40 SPS#define ADX122_DR_158SPS       0X0060    //011 = 158 SPS#define ADX122_DR_316SPS       0X0080    //100 = 316 SPS #define ADX122_DR_581SPS       0X00A0    //101 = 581 SPS#define ADX122_DR_1761SPS      0X00C0    //110 = 1761 SPS#define ADX122_DR_3571SPS      0X00E0    //111 = 3571 SPS
#define ADX122_PUUP_DIS        0X0000    //inside pullup disabled#define ADX122_PUUP_EN         0x0008    //inside pullup enabled
#define ADX122_NOP_UPDATA      0X0002    //update the Config register#define ADX122_NOP_UNUPDATA    0X0003    //do not update the Config register
#define ADX122_EN_FILT_50HZ    0x8000    //Enable FILT_50HZ#define ADX122_EN_FILT_60HZ    0X4000    //Enable FILT_60HZ#define ADX122_DIS_FILT        0X0000    //Disable FILT
#define ADX122_SDCS_Off        0X0000    //Sensor Current OFF#define ADX122_SDCS_0_5ua      0X0010    //Sensor Current 0.5ua#define ADX122_SDCS_2ua        0X0020    //Sensor Current 2ua#define ADX122_SDCS_10ua       0x0030    //Sensor Current 10ua
#define ADX122_In_Short_Mux    0x0000    //Short input mode control Follow CONFIG REGISTER#define ADX122_In_Short        0X0004    //Ainp and Ainn are shorted
uint8_t ADX122_Get_ID(void);void ADX122_Sigle_SHOT_Init();void ADX122_ADC_Continuous_Init(uint16_t channel,uint16_t PGA,uint16_t SPS,uint16_t FILT,uint16_t SDCS);float ADX122_Get_ADC_SIGLE_SHOT_Data(uint16_t channel,uint16_t PGA,uint16_t SPS,uint16_t FILT,uint16_t SDCS);float  ADX122_Get_ADC_Continuous_Data(uint16_t channel,uint16_t PGA,uint16_t SPS,uint16_t FILT,uint16_t SDCS);#endif

#include "adx122.h"//ADX122 supply voltage 2 - 5.5V//analog input voltage max VDD+0.3V.    VIN//(VDD-->3v3,PGA-->4096,)无法获得满量程ADC输出代码,这种意味着一些动态范围的丢失./*************************************************************************************************** * 函 数 名 称：ADX122_ADC_Continuous_Init * 函 数 说 明：初始化ADX122 * 函 数 形 参：channel = ADC外部通道选择,PGA = ADC满量程选择,SPS = ADC数据传输率选择 * 函 数 返 回：无 * 作       者：gugugu * 备       注：连续模式使用前，调用此函数完成初始化，之后调用ADX122_Get_ADC_Continuous_Data()连续读取数据***************************************************************************************************/void ADX122_ADC_Continuous_Init(uint16_t channel,uint16_t PGA,uint16_t SPS,uint16_t FILT,uint16_t SDCS){  //MySPI_Init();  uint32_t Txdata;  LPSPI_Init();//初始化SPI  ADX122_ENABLE;//拉低CS开始通信  Txdata = (ADX122_SS_START|channel|PGA|ADX122_Continuous_MODE|SPS|ADX122_PUUP_EN|ADX122_NOP_UPDATA);//16BIT SET CONFIG REGISTER  Txdata = (Txdata<<4)|((FILT|SDCS)>>12);//(16BIT << 4)|CONFIG_EXTRA = 20BIT  Lpspi_Write(1,(uint8_t)(Txdata>>12));//发送20位数据高8位数据  Lpspi_Write(1,(uint8_t)(Txdata>>4));//发送20位中8位数据  Lpspi_Write(1,(uint8_t)(Txdata<<4));//发送20位低4位数据  Spi_delay(30);  Lpspi_Stop();//拉高CS复位ADX122结束通信  Spi_delay(30);}/*************************************************************************************************** * 函 数 名 称：ADX122_ADC_Continuous_Init * 函 数 说 明：初始化ADX122 * 函 数 形 参：channel = ADC外部通道选择,PGA = ADC满量程选择,SPS = ADC数据传输率选择 * 函 数 返 回：无 * 作       者：gugugu * 备       注：连续模式使用前，调用此函数完成初始化，之后调用ADX122_Get_ADC_Continuous_Data()连续读取数据***************************************************************************************************/void ADX122_Sigle_SHOT_Init(){  LPSPI_Init();//初始化SPI}/****************************************************************** * 函 数 名 称：ADX122_Get_ADC_SIGLE_SHOT_Data * 函 数 说 明：单次获取AD电压值(mv) * 函 数 形 参：channel = ADC外部通道选择,PGA = ADC满量程选择,SPS = ADC数据传输率选择 * 函 数 返 回：AD电压值(mv) * 作       者：gugugu * 备       注：******************************************************************/float ADX122_Get_ADC_SIGLE_SHOT_Data(uint16_t channel,uint16_t PGA,uint16_t SPS,uint16_t FILT,uint16_t SDCS){  uint8_t Adc_Data_H=0;  uint8_t Adc_Data_M=0;  uint8_t Adc_Data_L=0;  uint32_t Adc_Data=0;  uint32_t TXdata=0;  float Tempture_data=0;  ADX122_ENABLE;//拉低CS开始通信  Spi_delay(30);  TXdata = (ADX122_SS_START|channel|PGA|ADX122_Sigle_SHOT_MODE|SPS|ADX122_PUUP_EN|ADX122_NOP_UPDATA);//16BIT SET CONFIG REGISTER  TXdata = (TXdata<<4)|((FILT|SDCS)>>12);//(16BIT << 4)|CONFIG_EXTRA = 20BIT  Lpspi_Write(1,(uint8_t)(TXdata>>12));//发送20位数据高8位数据  Lpspi_Write(1,(uint8_t)(TXdata>>4));//发送20位中8位数据  Lpspi_Write(1,(uint8_t)(TXdata<<4));//发送20位低4位数据  Spi_delay(30);  ADX122_DISABLE;//拉高CS复位ADX122结束通信  Spi_delay(30);  ADX122_ENABLE;//拉低CS开始通信  Spi_delay(30);  //while(!HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_6));//DOUT拉低ADC1118数据更新准备完毕    while(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_6));//DOUT拉低ADC1118数据更新准备完毕    TXdata = (ADX122_SS_START|channel|PGA|ADX122_Sigle_SHOT_MODE|SPS|ADX122_PUUP_EN|ADX122_NOP_UPDATA);//16BIT SET CONFIG REGISTER  TXdata = (TXdata<<4)|((FILT|SDCS)>>12);//(16BIT << 4)|(CONFIG_EXTRA>>12) = 20BIT   Adc_Data_H = Lpspi_Read(1,(uint8_t)(TXdata>>12));  Adc_Data_M = Lpspi_Read(1,(uint8_t)(TXdata>>4));  Adc_Data_L= Lpspi_Read(1,(uint8_t)(TXdata<<4));  Spi_delay(30);    ADX122_DISABLE;//拉高CS复位ADX122结束通信  Adc_Data = (((Adc_Data_H<<16)|(Adc_Data_M<<8)|(Adc_Data_M))>>4);//读24bit数据转换20位adc数据  if(Adc_Data&0X80000)//MSB=1-->负数需要转换  {    Adc_Data = (~Adc_Data);    Adc_Data = Adc_Data&0x7ffff;    if(PGA == ADX122_PGA_6144)Tempture_data=Adc_Data*0.01171875;    else if(PGA == ADX122_PGA_4096)Tempture_data=Adc_Data*0.0078125;    else if(PGA == ADX122_PGA_2048)Tempture_data=Adc_Data*0.000390625;    else if(PGA == ADX122_PGA_1024)Tempture_data=Adc_Data*0.0001953125;    else if(PGA == ADX122_PGA_0512)Tempture_data=Adc_Data*0.00009765625;    else Tempture_data=Adc_Data*0.000048828125;    return -(Tempture_data);  }  else  {    if(PGA == ADX122_PGA_6144)Tempture_data=Adc_Data*0.01171875;    else if(PGA == ADX122_PGA_4096)Tempture_data=Adc_Data*0.0078125;    else if(PGA == ADX122_PGA_2048)Tempture_data=Adc_Data*0.00390625;    else if(PGA == ADX122_PGA_1024)Tempture_data=Adc_Data*0.0001953125;    else if(PGA == ADX122_PGA_0512)Tempture_data=Adc_Data*0.00009765625;    else Tempture_data=Adc_Data*0.000048828125;    return Tempture_data;    }    }/*************************************************************************************** * 函 数 名 称：ADX122_Get_ADC_Continuous_Data * 函 数 说 明：连续获取AD电压值 * 函 数 形 参：channel = ADC外部通道选择,PGA = ADC满量程选择,SPS = ADC数据传输率选择 * 函 数 返 回：AD电压值(mv) * 作       者：gugugu * 备       注：使用此函数前调用ADX122_ADC_Continuous_Init()****************************************************************************************/float  ADX122_Get_ADC_Continuous_Data(uint16_t channel,uint16_t PGA,uint16_t SPS,uint16_t FILT,uint16_t SDCS){  uint8_t Adc_Data_H=0;  uint8_t Adc_Data_M=0;  uint8_t Adc_Data_L=0;  uint32_t Adc_Data=0;  uint32_t TXdata=0;  float Tempture_data;    ADX122_ENABLE;//拉低CS开始通信  Spi_delay(3);  while(!HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_6));//DOUT拉低ADC1118数据更新准备完毕    while(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_6));//DOUT拉低ADC1118数据更新准备完毕    TXdata = (ADX122_SS_START|channel|PGA|ADX122_Continuous_MODE|SPS|ADX122_PUUP_EN|ADX122_NOP_UNUPDATA);//16BIT SET CONFIG REGISTER  TXdata = (TXdata<<4)|((FILT|SDCS)>>12);//(16BIT << 4)|(CONFIG_EXTRA>>12) = 20BIT   Adc_Data_H = Lpspi_Read(1,(uint8_t)(TXdata>>12));  Adc_Data_M = Lpspi_Read(1,(uint8_t)(TXdata>>4));  Adc_Data_L= Lpspi_Read(1,(uint8_t)(TXdata<<4));    Spi_delay(30);    ADX122_DISABLE;//拉高CS复位ADX122结束通信  Adc_Data = (((Adc_Data_H<<16)|(Adc_Data_M<<8)|(Adc_Data_M))>>4);//读24bit数据转换20位adc数据  if(Adc_Data&0X80000)//MSB=1-->负数需要转换  {    Adc_Data = (~Adc_Data);    Adc_Data = Adc_Data&0x7ffff;    if(PGA == ADX122_PGA_6144)Tempture_data=Adc_Data*0.01171875;    else if(PGA == ADX122_PGA_4096)Tempture_data=Adc_Data*0.0078125;    else if(PGA == ADX122_PGA_2048)Tempture_data=Adc_Data*0.000390625;    else if(PGA == ADX122_PGA_1024)Tempture_data=Adc_Data*0.0001953125;    else if(PGA == ADX122_PGA_0512)Tempture_data=Adc_Data*0.00009765625;    else Tempture_data=Adc_Data*0.000048828125;    return -(Tempture_data);  }  else  {    if(PGA == ADX122_PGA_6144)Tempture_data=Adc_Data*0.01171875;    else if(PGA == ADX122_PGA_4096)Tempture_data=Adc_Data*0.0078125;    else if(PGA == ADX122_PGA_2048)Tempture_data=Adc_Data*0.00390625;    else if(PGA == ADX122_PGA_1024)Tempture_data=Adc_Data*0.0001953125;    else if(PGA == ADX122_PGA_0512)Tempture_data=Adc_Data*0.00009765625;    else Tempture_data=Adc_Data*0.000048828125;    return Tempture_data;   }    } /*************************************************************************************** * 函 数 名 称：ADX122_Get_ID * 函 数 说 明：读取ADX122ID,测试通信 * 函 数 形 参：无 * 函 数 返 回：ADX122_Device_ID * 作       者：gugugu * 备       注：80位数据传输,Device_ID_Register-->16bit,[15-8]-->Device_ID_Value****************************************************************************************/uint8_t ADX122_Get_ID(void){  uint16_t Txdata_1;//CONFIG DATA  uint16_t Txdata_2;//CONFIG_EXTRA DATA  uint8_t Adx_122_ID=0;     ADX122_ENABLE;//拉低CS开始通信    Spi_delay(30);    Txdata_1 = (ADX122_SS_START|ADX122_MUX_AIN0|ADX122_PGA_6144|ADX122_Sigle_SHOT_MODE|ADX122_DR_10SPS|ADX122_PUUP_EN|ADX122_NOP_UPDATA);  Txdata_2 = (ADX122_EN_FILT_50HZ|ADX122_SDCS_Off|ADX122_In_Short_Mux);//16bit  Lpspi_Write(1,(uint8_t)(Txdata_1>>8));//send 36 bit  Lpspi_Write(1,(uint8_t)Txdata_1);  Lpspi_Write(1,(uint8_t)(Txdata_2>>8));  Lpspi_Write(1,(uint8_t)Txdata_2);  for(int i=0;i<6;i++)//DIN拉低  {    Lpspi_Write(1,(uint8_t)0x00);  }  //Spi_delay(30);  //ADX122_DISABLE;//拉高CS复位ADX122结束通信  //Spi_delay(30);  //ADX122_ENABLE;//拉低CS开始通信  //Spi_delay(30);  while(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_6));//DOUT拉低ADX122数据更新准备完毕  Lpspi_Write(1,(uint8_t)(Txdata_1>>8));//send 36 bit  Lpspi_Write(1,(uint8_t)Txdata_1);  Lpspi_Write(1,(uint8_t)(Txdata_2>>8));  Lpspi_Write(1,(uint8_t)Txdata_2);  for(int i=0;i<6;i++)//DIN拉低  {    if(i<4)    {      Lpspi_Write(1,(uint8_t)0x00);    }    else if(i==4)    {            Adx_122_ID = Lpspi_Read(1,(uint8_t)0x00);      Lpspi_Write(1,(uint8_t)0x00);    }    }  Spi_delay(30);  ADX122_DISABLE;//拉高CS复位ADX122结束通信  return Adx_122_ID;}