MiZ702学习笔记9——XADC采集片上数据PS版

时间：2016-01-04 08:53:19 阅读：1293 评论：0 收藏：0 [点我收藏+]

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这次借助zynq的内嵌的XADC来采集zynq内部的一些参数：

•VCCINT：内部PL核心电压

•VCCAUX：辅助PL电压

•VREFP：XADC正参考电压

•VREFN：XADC负参考电压

•VCCBram：PL BRAM电压

•VCCPInt：PS内部核心电压

•VCCPAux：PS辅助电压

•VCCDdr：DDR RAM的工作电压

这次这个程序的开发流程和之前讲的别无二致，希望大家能够完全的熟悉这个流程~~

还是和往常一样，新建一个Block Design，并且向其中添加zynq核以及XADC IP。

对XADC核进行设置

依次执行这两项：

执行之后如下图所示：

依次执行Generate Output Products 和 Create HDL Wrapper

最后编译，直到生成bit文件。

导出硬件，并通过vivado打开SDK。

进入SDK，如何新建工程，就不再次啰嗦了，请参考之前的章节。新建main.c之后为其添加代码如下~~（这段代码是参考国外的一个大神Adam写的，向大神致敬~~）

#include <stdio.h>
//#include "platform.h"
#include "xadcps.h"
#include "xil_types.h"
#define XPAR_AXI_XADC_0_DEVICE_ID 0


//void print(char *str);

static XAdcPs XADCMonInst;

int main()
{

  XAdcPs_Config *ConfigPtr;
  XAdcPs *XADCInstPtr = &XADCMonInst;

  //status of initialisation
  int Status_ADC;

  //temperature readings
  u32 TempRawData;
  float TempData;

  //Vcc Int readings
  u32 VccIntRawData;
  float VccIntData;

  //Vcc Aux readings
  u32 VccAuxRawData;
  float VccAuxData;

  //Vbram readings
  u32 VBramRawData;
  float VBramData;

  //VccPInt readings
  u32 VccPIntRawData;
  float VccPIntData;

  //VccPAux readings
  u32 VccPAuxRawData;
  float VccPAuxData;

  //Vddr readings
  u32 VDDRRawData;
  float VDDRData;

 // init_platform();

    //printf("Adam Edition MicroZed Using Vivado How To Printf \n\r");
    printf("新年快乐~~！！！2015-12-31 \n\r");
    //XADC initilization

     ConfigPtr = XAdcPs_LookupConfig(XPAR_AXI_XADC_0_DEVICE_ID);
       if (ConfigPtr == NULL) {
           return XST_FAILURE;
         }

       Status_ADC = XAdcPs_CfgInitialize(XADCInstPtr,ConfigPtr,ConfigPtr->BaseAddress);
       if(XST_SUCCESS != Status_ADC){
           print("ADC INIT FAILED\n\r");
           return XST_FAILURE;
        }

       //self test
       Status_ADC = XAdcPs_SelfTest(XADCInstPtr);
     if (Status_ADC != XST_SUCCESS) {
       return XST_FAILURE;
     }

        //stop sequencer
        XAdcPs_SetSequencerMode(XADCInstPtr,XADCPS_SEQ_MODE_SINGCHAN);

        //disable alarms
        XAdcPs_SetAlarmEnables(XADCInstPtr, 0x0);

        //configure sequencer to just sample internal on chip parameters
        XAdcPs_SetSeqInputMode(XADCInstPtr, XADCPS_SEQ_MODE_SAFE);


        //configure the channel enables we want to monitor

        XAdcPs_SetSeqChEnables(XADCInstPtr,XADCPS_CH_TEMP|XADCPS_CH_VCCINT|XADCPS_CH_VCCAUX|XADCPS_CH_VBRAM|XADCPS_CH_VCCPINT| XADCPS_CH_VCCPAUX|XADCPS_CH_VCCPDRO);

        while(1)
        {
            TempRawData = XAdcPs_GetAdcData(XADCInstPtr, XADCPS_CH_TEMP);
            TempData = XAdcPs_RawToTemperature(TempRawData);
            printf("Raw Temp %lu Real Temp %f \n\r", TempRawData, TempData);

            VccIntRawData = XAdcPs_GetAdcData(XADCInstPtr, XADCPS_CH_VCCINT);
            VccIntData = XAdcPs_RawToVoltage(VccIntRawData);
            printf("Raw VccInt %lu Real VccInt %f \n\r", VccIntRawData,VccIntData);

            VccAuxRawData = XAdcPs_GetAdcData(XADCInstPtr, XADCPS_CH_VCCAUX);
            VccAuxData = XAdcPs_RawToVoltage(VccAuxRawData);
            printf("Raw VccAux %lu Real VccAux %f \n\r", VccAuxRawData,VccAuxData);


            VBramRawData = XAdcPs_GetAdcData(XADCInstPtr, XADCPS_CH_VBRAM);
            VBramData = XAdcPs_RawToVoltage(VBramRawData);
            printf("Raw VccBram %lu Real VccBram %f \n\r", VBramRawData, VBramData);

            VccPIntRawData = XAdcPs_GetAdcData(XADCInstPtr, XADCPS_CH_VCCPINT);
            VccPIntData = XAdcPs_RawToVoltage(VccPIntRawData);
            printf("Raw VccPInt %lu Real VccPInt %f \n\r", VccPIntRawData, VccPIntData);

            VccPAuxRawData = XAdcPs_GetAdcData(XADCInstPtr, XADCPS_CH_VCCPAUX);
            VccPAuxData = XAdcPs_RawToVoltage(VccPAuxRawData);
            printf("Raw VccPAux %lu Real VccPAux %f \n\r", VccPAuxRawData, VccPAuxData);

            VDDRRawData = XAdcPs_GetAdcData(XADCInstPtr, XADCPS_CH_VCCPDRO);
            VDDRData = XAdcPs_RawToVoltage(VDDRRawData);
            printf("Raw VccDDR %lu Real VccDDR %f \n\r", VDDRRawData, VDDRData);
         }

        return 0;
}