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Altera_Forum
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13 years ago

JTAG UART crashes NIOS if no NIOS terminal is open

Hi So, Nios was "crashing" for me. In truth, it just seemed to be dormant. As soon as I connected the Nios terminal, it magically came back to life, and some printf stuff got flushed out onto t...
Altera_Forum's avatar
Altera_Forum
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9 years ago

I am seeing this problem with Quartus 14.1/16 versions.

When I send data on uart with nios2-terminal not started, after a while NIOS stalls.

Additionally, verified that DALTERA_AVALON_JTAG_UART_SMALL is not used in this case, which means full fledged driver with character drop is running.

It does not look to be related to buffer size, as I could print characters more than the buffer could hold.

Any input is well appreciated.