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Using a timer when running a C program as 'bare metal'

Former Member

Hi,

I'm trying to run a benchmark-like algoritm on the zedboard using the SDK (like the helloWorld program in the labs here on ZedBoard.org).

My poblem is that when i'm trying to get the time,
startTime = ftime(&tmb);
I get an error that ftime cannot be found.

Is there an commonly used way to get the time?

Thanks for answers :)

Anders Viken

Parents
  • 0

    Hi, thanks again for your reply. Got all the include files worked out now :)

    But when I try to run the program, it "stops" after checkpoint 3 (see code). The program doesn't terminate, but it uses several minutes with nothing happening.

    The code has no errors or warnings. When I start the program I get the message: "FPGA configuration is not done on the target. Do you still want to continue launching application?"

    Do you have any idea what I might do here?

    Again thanks for your answers, much appreciated :)

    Anders Viken



    Code:
    #include "xil_types.h"
    #include "xtmrctr.h"
    #include "xparameters.h"
    #include<stdio.h>

    int main()
    {
    tprintf("Checkpoint 1
    ");
    tXTmrCtr TmrCtrInstancePtr;

    tprintf("Checkpoint 2
    ");
    tunsigned int startTime, endTime, usedTime;

    tprintf("Checkpoint 3
    ");
    tXStatus Status = XTmrCtr_Initialize(&TmrCtrInstancePtr, XPAR_AXI_TIMER_0_DEVICE_ID);

    tprintf("Checkpoint 4
    ");
    tif (Status != XST_SUCCESS)
    t{
    ttprintf("Problem with timer initialization. Exiting.
    ");
    ttreturn 1;
    t}

    tprintf("Checkpoint 5
    ");
    tstartTime = XTmrCtr_GetValue(&TmrCtrInstancePtr, 0);

    tprintf("Checkpoint 6
    ");
    tXTmrCtr_Start(&TmrCtrInstancePtr, 0);

    t// the process
    tprintf("Hello World
    ");

    tXTmrCtr_Stop(&TmrCtrInstancePtr, 0);
    tendTime = XTmrCtr_GetValue(&TmrCtrInstancePtr, 0);

    tusedTime = endTime - startTime;

    tprintf("Number of ticks used: %d
    ", usedTime);


        return 0;

    }

Reply
  • 0

    Hi, thanks again for your reply. Got all the include files worked out now :)

    But when I try to run the program, it "stops" after checkpoint 3 (see code). The program doesn't terminate, but it uses several minutes with nothing happening.

    The code has no errors or warnings. When I start the program I get the message: "FPGA configuration is not done on the target. Do you still want to continue launching application?"

    Do you have any idea what I might do here?

    Again thanks for your answers, much appreciated :)

    Anders Viken



    Code:
    #include "xil_types.h"
    #include "xtmrctr.h"
    #include "xparameters.h"
    #include<stdio.h>

    int main()
    {
    tprintf("Checkpoint 1
    ");
    tXTmrCtr TmrCtrInstancePtr;

    tprintf("Checkpoint 2
    ");
    tunsigned int startTime, endTime, usedTime;

    tprintf("Checkpoint 3
    ");
    tXStatus Status = XTmrCtr_Initialize(&TmrCtrInstancePtr, XPAR_AXI_TIMER_0_DEVICE_ID);

    tprintf("Checkpoint 4
    ");
    tif (Status != XST_SUCCESS)
    t{
    ttprintf("Problem with timer initialization. Exiting.
    ");
    ttreturn 1;
    t}

    tprintf("Checkpoint 5
    ");
    tstartTime = XTmrCtr_GetValue(&TmrCtrInstancePtr, 0);

    tprintf("Checkpoint 6
    ");
    tXTmrCtr_Start(&TmrCtrInstancePtr, 0);

    t// the process
    tprintf("Hello World
    ");

    tXTmrCtr_Stop(&TmrCtrInstancePtr, 0);
    tendTime = XTmrCtr_GetValue(&TmrCtrInstancePtr, 0);

    tusedTime = endTime - startTime;

    tprintf("Number of ticks used: %d
    ", usedTime);


        return 0;

    }

Children
  • 0 in reply to Former Member

    As far as the FPGA configuration, I can help you there. First, make sure the hardware server is running (Xilinx Tools->Launch Hardware Server) and then select Xilinx Tools->Program FPGA. You'll have to select a bitstream. Zynqgeek's Hello_world walkthrough can show you how to get that if you don't have one. That should get rid of that error.

    When I run your code, it goes from checkpoint 1 to 2 to 3 then repeats main from the beginning. Apparently the XTmrCtr_Initialize function (at checkpoint 3) isn't acting as you think it is/should. I'm interested in getting this working too so I'll also be working on it.