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EMIO pins assignment in microzed carrier board PMOD connector

JavierOrtiz

Hello,

I've tried every way (see "Xilinx ZYNQ 7000+Vivado2015.2 series (four) three ways of GPIO: MIO, EMIO, AXI_GPIO"  Link: https://www.programmersought.com/article/1631784927/

to write a digital output in one of the PmodTm Compatible Expansion Headers JC: ( pin 7, JC4-5 P, JX1-53, Bank 34:-T20) in microzedboard embedded vision carrier card mapped to Zynq PL I/0.

but without success. However, I have had success writing digital outputs in the microzedboard PMOD connector (MOD_DO-MIO 11).

In Vivado assigned this pin as GPIO (version 1) or AXI_GPIO (version 2) connected to EMIO.

I have no clear which pin number should be assigned in application.c Vitis application file.

For MIO pins the same number is right but for EMIO pins I'm not sure if the right number is 53 (for thr above cited pin) or other number.

 

Otherwise, in the Carrier Card User's guide it is said that, quote: "The Embedded Vision Carrier card contains a switch, SW1 that allows you to select between on LEDs and PUSHBUTTONS on board the carrier card or to remove these from circuit by toggling the switch. This allows the end user to access a PMODTm on board the MicroZedTm". I changed the sw1 on / off but no way.

 

Any help about this would be very thankfull.

Javier

 

 

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  • 0

    Javier,

     

    Are you using:

    1. PS GPIO routed via EMIO to PL I/O pins?
    2. A PL GPIO IP connected to PL I/O pins?

     

    You specifically mention EMIO, so I'm guessing it is #1 above. Also, is this a bare metal application?

     

    The MicroZed SOM itself has a vertical Pmod connector directly on the SOM connected to MIOs. This allows people using the MicroZed without a carrier to have a small expansion option. However, the Vision Carrier also utilizes those MIO, so you have to make a choice with SW1 as to whether you want to use the on-MicroZed Pmod or the on-Carrier LEDs/PBs. SW1 has no affect on the Carrier Pmods.

     

    Bryan

  • 0 in reply to bhfletcher

    Hi Bryan,

    It is solved.

    I'm using one AXI_GPIO IP block.

    It happened that in the "Platform_Setup" tab in Vivado two red flags showed.

    First flag, about "must choose" radio button "default clock". (In this case FCLK_CLK0).

    Second, One AXI_Port must be enabled,  ("M_AXI_GP1").

    Afterwards, red flags converted to green approval and everything was OK.

    Once, this solved. I will try using the 1º mode ( PS GPIO routed via EMIO to PL I/O pins).

    Thanks.

    Javier

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  • 0 in reply to bhfletcher

    Hi Bryan,

    It is solved.

    I'm using one AXI_GPIO IP block.

    It happened that in the "Platform_Setup" tab in Vivado two red flags showed.

    First flag, about "must choose" radio button "default clock". (In this case FCLK_CLK0).

    Second, One AXI_Port must be enabled,  ("M_AXI_GP1").

    Afterwards, red flags converted to green approval and everything was OK.

    Once, this solved. I will try using the 1º mode ( PS GPIO routed via EMIO to PL I/O pins).

    Thanks.

    Javier

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