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Altera_Forum's avatar
Altera_Forum
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20 years ago

FIFOed Avalon Uart

I have posted the FIFOed avalon UART in the Hardware Projects area. It is the standard UART that comes with Nios but it has additional features such as FIFOs and hardware CTS fifoed avalon uar...
Altera_Forum's avatar
Altera_Forum
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14 years ago

I'm using the FIFOed Avalon Uart in a project and I'd like to modify the driver so that it blocks, but has a timeout. Basically I don't want to risk hanging if I miss a byte while in blocking mode. I've also seen cases where I miss replies if I don't block because the call to the fread function happens before the data is sent from the device. I figure with a time-out I get the reply as fast as possible, but I don't hang if the reply never comes (or is short a byte).

I think I see a way to modify the driver, but I thought I would post the question in case the author still checks these forums and might have some advice. Any "gotchas" I might not realize. Or any advice from driver experts.

Thanks!