Writing value on a pin on Zynq 7020

Hello,

I have been struggling with writing a value to a pin on Zynq 7020. I have been using PicoZed SOM 7020 along with the FMC carrier card v2. My intention is to toggle the D10 PS_LED. I have gone through the documentation to the PicoZed SOM and FMC carrier card v2 and I have found that the D10 PS_LED is connected to the pin 40 on connector JX3. Which is then connected to the Zynq Pin B14 (MIO Bank 501).

My question is what pin number shall I pass into the XGpioPs_SetDirectionPin and XGpioPs_WritePin functions to be able to blink the LED? I have used 47 but it does not work. Can anybody tell me how to convert B14 into pin number for above mentioned functions?

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bhfletcher over 5 years ago
Pin B14 is MIO #47. You can see this in the PicoZed schematic, but that is derived from the Xilinx specification for the device pinout.
https://www.xilinx.com/support/packagefiles/z7packages/xc7z020clg400pkg.txt
Pin Pin Name Memory Byte Group Bank VCCAUX Group Super Logic Region I/O Type No-Connect
B14 PS_MIO47_501 NA 501 NA NA MIO NA

So, 47 is correct, but that isn't working for you. It's possible you missed some of the setup steps. There is a series of really excellent articles called MicroZed Chronicles http://adiuvoengineering.com/microzed-chronicles/ . I suggest you check out #10 and see if that helps.
https://forums.xilinx.com/t5/Xcell-Daily-Blog-Archived/Driving-the-Zynq-SoC-s-GPIO-Adam-Taylor-s-MicroZed-Chronicles/ba-…

Bryan
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bhfletcher over 5 years ago
Pin B14 is MIO #47. You can see this in the PicoZed schematic, but that is derived from the Xilinx specification for the device pinout.
https://www.xilinx.com/support/packagefiles/z7packages/xc7z020clg400pkg.txt
Pin Pin Name Memory Byte Group Bank VCCAUX Group Super Logic Region I/O Type No-Connect
B14 PS_MIO47_501 NA 501 NA NA MIO NA

So, 47 is correct, but that isn't working for you. It's possible you missed some of the setup steps. There is a series of really excellent articles called MicroZed Chronicles http://adiuvoengineering.com/microzed-chronicles/ . I suggest you check out #10 and see if that helps.
https://forums.xilinx.com/t5/Xcell-Daily-Blog-Archived/Driving-the-Zynq-SoC-s-GPIO-Adam-Taylor-s-MicroZed-Chronicles/ba-…

Bryan
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