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Vinay
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Registered: ‎07-27-2020

picoblaze uart

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I am getting data in picoblaze uart tx sysgen blackbox implementation, but not in vivado ila. Pls help.

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Vinay
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Registered: ‎07-27-2020

Issue solved. It was sysgen blackbox configuration.

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joancab
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Registered: ‎05-11-2015

Do you mean you want ILA to capture uart data coming out of a picoblaze?

Vinay
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Registered: ‎07-27-2020

yes. but i have only taken uart transmitter as blackbox with verilog code provided by Mr Chapman. MY design does not include picoblaze. 

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joancab
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Registered: ‎05-11-2015

Ok, well, I have never seen ILA failing to capture data and in any case, I would expect it failing in extreme (high speed) conditions, not with an Uart. So, my guesses for you not capturing data are:


- There is no data, you may need your software sending things more than once

- Your software is not running, for whatever reason

- You have attached ILA to the receiver's TX instead of the transmitter's TX

- You need to trigger the ILA on a TX edge (either will work)

- If your sw just starts and sends a 'hello' or whatever text at start-up, ILA won't capture it (there is a special procedure for ILA to capture from start), so you may need your sw sending things all the time.

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Vinay
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Registered: ‎07-27-2020

I have connected constant to data in, how can I implement sending data more than once?

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joancab
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kind of this

while(1){

printf("hello");

}

 

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Vinay
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Registered: ‎07-27-2020

Issue solved. It was sysgen blackbox configuration.

View solution in original post

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Vinay
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thanks

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