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Altera_Forum's avatar
Altera_Forum
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11 years ago

Bare Metal HPS UART Rx

Hi, I've read through the posts in this section and I can't find something that addresses this apparently simple issue. If this has already been discussed elsewhere I apologize for my poor search ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

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  • Missing driver? I would have thought that even without an interrupt handler, or advanced register configurations, the default settings would allow getchar to receive data.

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Hi, I got this to work correctly, though not with without the drivers. In case this helps someone else, it seems that the default stdin does not work out of the box with default settings. In my case, including "alt_16550_uart.h" from the altera embedded ip libraries and using the alt_16550_init and alt_16550_ read and write functions works correctly.