ZedBoard教程PS篇(5):XADC测量输入电压_zedboard的ps端如何学习?

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/*
 * helloworld.c: simple test application
 *
 * This application configures UART 16550 to baud rate 9600.
 * PS7 UART (Zynq) is not initialized by this application, since
 * bootrom/bsp configures it to baud rate 115200
 *
 * ------------------------------------------------
 * | UART TYPE   BAUD RATE                        |
 * ------------------------------------------------
 *   uartns550   9600
 *   uartlite    Configurable only in HW design
 *   ps7_uart    115200 (configured by bootrom/bsp)
 */
 
#include "xsysmon.h"
#include "xparameters.h"
#include "xstatus.h"
#include "xil_exception.h"
#include "xil_printf.h"
#include "sleep.h"
 
#define XPAR_AXI_XADC_0_DEVICE_ID 0
 
#define C_BASEADDR 0x43C00000
 
 
 
int main()
{
 
  u16 data;
  u32 data1;
  u32 status;
 
 
       Xil_Out32(C_BASEADDR +  0x300 , 0x9103);  //40
       Xil_Out32(C_BASEADDR +  0x304 , 0x3F0F);//41
       Xil_Out32(C_BASEADDR +  0x308 , 0x0400);//42
       Xil_Out32(C_BASEADDR +  0x320 , 0x800); //48
 
		while(1)
		{
			status 	= Xil_In32(C_BASEADDR +  0x04);
			if(status && 0x40 == 0x40)
			{
 
 
			data 	= Xil_In32(C_BASEADDR +  0x20C);
			data 	= data >> 4;
			data 	= data*0.244;
 
			xil_printf("data = %03dmv\n\r",data);
			}
 
			sleep(1);
		 }
 
		return 0;
}