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Altera_Forum's avatar
Altera_Forum
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15 years ago

Uart data ready

Hi all, I am periodically sending data from LabView to my cycloneIII development kit (bemicro) and I want to check if there is data available to be read in NIOS II. Unfortunately, I have not be...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Thanks for the reply mmTsuchi.

The UART_BASE matches the SOPC UART_BASE and the BSP is up to date. I can send data (TRDY behaves as expected) but RRDY still remains low even when data is sent (I checked the data is actually sent, I can even read it in the NIOS, but RRDY remains low).

I seem to observe that RRDY goes high for a very short amount of time, like a glitch and returns to zero even when the data is not read from the tx.

Any ideas? Anyone?