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Altera_Forum's avatar
Altera_Forum
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16 years ago

Using a uart without HAL

Hi, we're just starting out with Nios II. We have a lot of experience with embedded processors, particularly the NXP ARM7 and the Atmel AVR. We are trying to write code to receive the serial li...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Sorry to reply to my own post, I've just found out from another programmer that the HAL code does not take effect unless you use fopen() or other C stream commands. So my problem must be elsewhere.

I am slightly confused by the section in the "Embedded Peripherals" documentation which appears to suggest that you should not access the UART registers directly "if the HAL driver is active for the device".