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MicroZed + FMC  control LEDs without Linux

nowksru

Hello,

My plan is to control LEDs on the FMC Carrier Card without installing any OS on the MicroZed (XC7Z020).

 

I first tried the FMC Carrier Card Linux User IO Tutorial , because it's apparently the only tutorial available for the MicroZed including the FMC-CC.

 

I did the tutorial step by step and also using the pre-built SD-Image. Both without any success. Only the "Power Good" (on the FMC-CC) and the power LED on the MicroZed switch on, but not the "DONE" LED on the FMC-CC. I also connected a terminal with teraterm, where nothing happened. For this tutorial I used Vivado 2013.3 as recommended.

 

 I am able to use the MicroZed by itself and control the LED on the MicroZed like in this tutorial. The steps I changed to try get it running on the FMC-CC are that I added the constraint file and I made 6 EMIO pins external inside Vivado for the FMC-CC and changed the pins that I controlled via xgpiops according to the MicroZed_HW_UG_v1_4.pdf in SDK. For this I used Vivado 2014.1 and did the programming using JTAG .

 

Am I missing a point? Is there any tutorial that someone can recommend me for achieving my goal?

 

Thanks in advance.

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  • 0

    Hello URS,

    If your boards set to 3.3V you should change your constraitns to reflect this, from lvcmos18 to lvcmos33.

    -Josh

  • 0 in reply to jafoste4

    Hi Josh,

    I changed now all the from lvcmos18 entries inside the constraints file to lvcmos33, but it doesn't work either.

    I am also wondering, shouldn't the four LEDs on the FMC-CC at least switch off when I am running my configuration on the MicroZed? Because they are illuminating the whole time.

    Also I am still not able to illuminate the LED 'D3' on the Microzed. So far I am only able to read the state of the button on the MicroZed.

     

    To make sure, these are the pins I defined in the SDK for the EMIO pins:

    #define led_fmc 54
#define led_fmc 55
#define led_fmc 56
#define led_fmc 57
#define pbsw_fmc 58
#define pbsw_fmc 59

     

    And these for the button and the LED 'D3' on the MicroZed:

    #define ledpin 47
#define pbsw 51

     

    -Urs
     

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  • 0 in reply to jafoste4

    Hi Josh,

    I changed now all the from lvcmos18 entries inside the constraints file to lvcmos33, but it doesn't work either.

    I am also wondering, shouldn't the four LEDs on the FMC-CC at least switch off when I am running my configuration on the MicroZed? Because they are illuminating the whole time.

    Also I am still not able to illuminate the LED 'D3' on the Microzed. So far I am only able to read the state of the button on the MicroZed.

     

    To make sure, these are the pins I defined in the SDK for the EMIO pins:

    #define led_fmc 54
#define led_fmc 55
#define led_fmc 56
#define led_fmc 57
#define pbsw_fmc 58
#define pbsw_fmc 59

     

    And these for the button and the LED 'D3' on the MicroZed:

    #define ledpin 47
#define pbsw 51

     

    -Urs
     

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