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Altera_Forum's avatar
Altera_Forum
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15 years ago

UART use with Small newlib C Library

I want to add a UART to a minimal resources system. Stdin/out are used by JTAG Uart. Is there any way to utilise the standard UART using HAL if fopen and similar are unavailable? I'm quite h...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

volatile isn't enough. You need to use the alt_remap_uncached() function to directly access a register if you have cache. The IORD* macros are easier to use for that purpose.