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Altera_Forum's avatar
Altera_Forum
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21 years ago

uart communication

I am running a 1S10 board and freestanding application to communicate over an RS232 cable to a PC. I have a GUI running on a PC sending about a 30 Hz status message that expects a NIOS response but t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

When you do the order of GUI first then power up the Nios, are you sending right away to the Nios? If that's the case then you would not be giving the core enough time to get through the initialization code and get ready for data. (so you would be pounding the Uart with data and the Nios isn't ready to service it yet).

Could you describe the GUI code a little more?