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Altera_Forum
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16 years ago

UART problem - RRDY never set

I have a simple polled UART application which is not working as I expect: rs232_rx_control = IORD_ALTERA_AVALON_UART_STATUS(UART_BASE); if (rs232_rx_control & ALTERA_AVALON_UART_STATUS_RRDY_...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Solved this myself.

I hadn't initialised the UART control register. I guess the default is to enable interrupts.

With all interrupts disabled the code worked as expected.