About Video Output

[AugustZTR]

Hello, I compiled and wrote the program according to the document, and successfully used GDB for communication and program loading, however, I have not been able to get the output of the video screen, i'm not sure if it's the video output or if the program isn't working properly

[ztachip]

Which FPGA board are you using? If you are using the Arty-A7, can you try the project as is from github first? That should work fine. If you create your own project, verify if your pin assignments for VGA are programmed correctly.

[AugustZTR]

I'm using the same Arty-A7 100T as the project and still not figure out the reason.

[ztachip]

But if you build ztachip project from git as is. Does it work? Try to download latest ztachip again and open the project below to build ztachip/HW/examples/GHRD/GHRD.xpr

[AugustZTR]

I tried again and still not work. Here is the terminal output. And here is the hardware.

[ztachip]

This is just loading the image After you have to issue "continue" command I describe this step in github page

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From: Augest @.> Sent: March 13, 2023 5:08 AM To: ztachip/ztachip @.> Cc: ztachip @.>; Comment @.> Subject: Re: [ztachip/ztachip] About Video Output (Issue #4)

I tried again and still not work. The terminal output is like this [??]https://user-images.githubusercontent.com/28720897/224656013-759a12be-fcff-41db-b06b-c9d0427f458e.png

— Reply to this email directly, view it on GitHubhttps://github.com/ztachip/ztachip/issues/4#issuecomment-1465761440, or unsubscribehttps://github.com/notifications/unsubscribe-auth/ACSDUFUWQCCXXA7SGA5HNG3W33PZJANCNFSM6AAAAAAVUQIAVE. You are receiving this because you commented.Message ID: @.***>

[AugustZTR]

Sorry, my bad. I mistook the following output as the "continue" command mentioned in the document However, this has brought new problems. The board will reset after I input the "continue". I repeated the complete process on two computers respectively, and the result was the same. And still, no video output.

[ztachip]

Looks like you have problem with the openOCD or USB connection. Can you verify you setup correctly. The steps to setup this also on github page. Make sure the board is operational before starting openOCD. Usually after power up, it takes 10sec before FPGA is programmed (you will see a green led turn on)

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From: Augest @.> Sent: March 14, 2023 7:11 AM To: ztachip/ztachip @.> Cc: ztachip @.>; Comment @.> Subject: Re: [ztachip/ztachip] About Video Output (Issue #4)

Sorry, my bed. I mistook the following output as the "continue" command mentioned in the document [??]https://user-images.githubusercontent.com/28720897/224982776-fe67502e-3bee-4104-9b5a-be6ad2adaec2.png However, this has brought new problems. The board will reset after I input the "continue". I repeated the complete process on two computers respectively, and the result was the same. And still, no video output. [??]https://user-images.githubusercontent.com/28720897/224983449-fef2681d-8e33-4e3f-9b29-15b12deb6058.png

— Reply to this email directly, view it on GitHubhttps://github.com/ztachip/ztachip/issues/4#issuecomment-1467899576, or unsubscribehttps://github.com/notifications/unsubscribe-auth/ACSDUFQ27EB2HZPBLAY5GDLW4BG5LANCNFSM6AAAAAAVUQIAVE. You are receiving this because you commented.Message ID: @.***>

[ztachip]

Does it work for you?

[ztachip]

Done