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Altera_Forum's avatar
Altera_Forum
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13 years ago

RS232C Packet Loss

Hello, I am working with my custom board, and having problem communicating via RS232C. In very rare occasion, commands seems to be ignored, lost, or thrown away. My C code is some...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Hi, one last thing.

I found out that even using file descripter

as I metioned in above, it still loses some charactors.

(well, better than losing the whole command)

Then I realized that the default rs232c ip

doesn't have any kind of hardware fifo.

Am I getting this right?

So, I downloaded FIFOed avalon_UART,

as mmTsuchi said, and now it's working completely fine.

scanf() is also working fine.