标题: AD7193驱动代码 C语言 [打印本页]
作者: tyx623521553    时间: 2019-10-9 17:24
标题: AD7193驱动代码 C语言
AD7193是一款ADI公司的AD芯片，差分带PGA


具体步骤
1.Init
2.Reset
3.Calibrate(zero&full)校准
4.RangeSetup(1,gain1)单双极性以及增益选择
5.ChannelSelect通道选择
6.SingleConversion获得AD值
7.ConvertToVolts转换成电压
8.ContinuousReadAvg(10)10次采样求均值
9.ConvertToVolts
10.TemperatureRead获得温度AD


这些代码是MCU通用的，不需修改
需要修改的是SPI函数



单片机源程序如下:
  1. #include "YRDKRL78G13.h"    // YRDKRL78G13 definitions.
  2. #include "ST7579.h"         // ST7579 definitions.
  3. #include "TIME.h"           // TIME definitions.
  4. #include "AD7193.h"         // AD7193 definitions.

  6. /******************************************************************************/
  7. /************************ Variables Definitions *******************************/
  8. /******************************************************************************/
  9. unsigned long result   = 0;
  10. unsigned long degreesC = 0;
  11. float         voltage  = 0;

  13. /***************************************************************************//**
  14. * @brief Draws the ADI logo and displays the name of ADI component.
  15. *
  16. * @param componentName - The name of the ADI component.
  17. *
  18. * @return None.
  19. *******************************************************************************/
  20. void ADI_Component(unsigned char* string)
  21. {
  22.     const unsigned char adiComponent[7] =
  23.     {
  24.         0xFE, 0xFE, 0x82, 0xC6, 0xEE, 0xFE, 0xFE
  25.     };
  26.     ST7579_Image(0, 0, adiComponent, 7, 8);
  27.     ST7579_String(0, 9, string, 0);
  28. }

  30. /***************************************************************************//**
  31. * @brief Main function.
  32. *
  33. * @return None.
  34. *******************************************************************************/
  35. void main(void)
  36. {        
  37.     /* Initialize YRDKRL78G13. */
  38.     YRDKRL78G13_Init();
  39.    
  40.     /* Enable interrupts. */
  41.     __enable_interrupt();
  42.         
  43.     /* Initialize timer. */
  44.     TIME_Init();
  45.    
  46.     /* Initialize the ST7579 Display. */
  47.     ST7579_Init();
  48.    
  49.     /* Initialize AD7193 device. */
  50.     if(AD7193_Init())
  51.     {
  52.         ADI_Component("AD7193 OK");
  53.     }
  54.     else
  55.     {
  56.         ADI_Component("AD7193 Err");
  57.     }
  58.     /* Reset the device. */
  59.     AD7193_Reset();
  60.    
  61.     /* Allow a period of 500 us before accessing any of the on-chip registers. */
  62.     TIME_DelayUs(500);
  63.    
  64.     /* Calibrate channel 0. */
  65.     AD7193_Calibrate(AD7193_MODE_CAL_INT_ZERO, AD7193_CH_0);
  66.     AD7193_Calibrate(AD7193_MODE_CAL_INT_FULL, AD7193_CH_0);
  67.    
  68.     while(1)
  69.     {
  70.         /* Select unipolar operation and ADC's input range to +-2.5V. */
  71.         AD7193_RangeSetup(1, AD7193_CONF_GAIN_1);

  73.         /* Select channel AIN1(+) - AIN2(-). */
  74.         AD7193_ChannelSelect(AD7193_CH_0);
  75.         
  76.         /* Perform a single conversion. */
  77.         result = AD7193_SingleConversion();
  78.         ST7579_String(2, 0, "CHANNEL 0:", 0);
  79.         ST7579_String(3, 0, "RAW:          ", 0);
  80.         ST7579_String(4, 0, "1RD:       [V]", 0);
  81.         ST7579_HexNumber(3, 30, result, 0);
  82.         
  83.         /* The value of the voltage reference on PmodAD5 is 2.5V by default. */
  84.         voltage = AD7193_ConvertToVolts(result, 2.5);
  85.         ST7579_FloatNumber(4, 30, voltage, 3, 0);
  86.         
  87.         /* Continuous reads. */
  88.         result = AD7193_ContinuousReadAvg(10);
  89.         voltage = AD7193_ConvertToVolts(result, 2.5);
  90.         ST7579_String(5, 0, "RAW:        ", 0);
  91.         ST7579_String(6, 0, "AVG:       [V]", 0);
  92.         ST7579_HexNumber(5, 30, result, 0);
  93.         ST7579_FloatNumber(6, 30, voltage, 3, 0);   
  94.         
  95.         /* Read the temperature. */
  96.         degreesC = AD7193_TemperatureRead();
  97.         ST7579_String(7, 0, "TMP:       oC", 0);
  98.         ST7579_Number(7, 30, degreesC, 0);
  99.     }
  100. }
复制代码

所有资料51hei提供下载:
7193.zip (26.75 KB, 下载次数: 65)


作者: zhangleitj    时间: 2019-10-28 16:30
感谢分享
作者: lyl_420819    时间: 2020-2-16 11:18
很好，学习了，谢谢楼主分享。
作者: zhou5201986    时间: 2022-5-27 17:59
感谢楼主，应该和AD7190差不多吧



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