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ZedBoard Hardware Design unable to get results out of floating point operator  in Zynq Zedboard.
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unable to get results out of floating point operator  in Zynq Zedboard.

Former Member
Former Member over 11 years ago

Hi All,

I have implemented an example project containing floating point operator as adder. I am giving constants (via constant block) as two input operands and I am reading the results from output port via AXI DMA block as the output of Floating point operator is stream.

But the problem is I am not getting any output from floating point operator.

The code in main looks like

int main(){
init_platform();
    ps7_post_config();
    xil_printf("Initializing the DMA
r");
       InitializeAXIDma();

       //Set the interrupt system and interrupthandling
           //Interrupt
           xil_printf("enabling the interrupt handling system..
r");
           InitializeInterruptSystem(XPAR_PS7_SCUGIC_0_DEVICE_ID);
           result[0]=1;

           //Start the first Dma Transfer
           xil_printf ("Performing the first dma transfer...press a key to begin..
r");
           getchar();
         //  int ans=Xil_In32(XPAR_AXI_GPIO_0_BASEADDR);
           StartDMATransfer (&result[0], 4);
        return 0;
}

Is there a problem in my way of giving operands i.e via  32 bit Constant blocks in Block Design and I have also set the valid input of Floating point operator via single bit constant?

It will be great if some one can also direct me to tutorial or example design

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  • Former Member
    0 Former Member over 11 years ago

    There is not enough information here to determine what your issue might be. I would suggest using the Vivado Analyzer tool to instrument the inputs and outputs of the various stages of your design, starting with the floating point operator, to get some visibility into your design.

     

    Lab 8 of the Avnet Developing ZynqRegistered-7000 All Programmable SoC Hardware (Vivado 2013.3) Speedway tutorial gives an example of using the Vivado Analyzer: http://zedboard.org/support/trainings-and-videos

     

    as does Chapter 4 of the Zynq Concepts Tools and Techniques tutorial you can download here: http://zedboard.org/support/design/1521/11

     

    The Xilinx Vivado Design Suite Tutorial, UG940, also has examples: http://www.xilinx.com/support/documentation/sw_manuals/xilinx2014_2/ug940-vivado-tutorial-embedded-design.pdf

     

    -Gary

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