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Altera_Forum's avatar
Altera_Forum
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20 years ago

Nios II Uart

Hello evrybody, I don't undertand, my uart doen't works correctly. In fact it works only when I drive it with IOWR & IORD but never with HAL functions. is there anybody has some ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Hi etienne..

If you have use Nios II / fast version, I think that you can solve this problem data cache flush.

Because all variable in Nios II / fast version be cached.

let try to use data cache flush function(alt_dcache_flush()), after some command

Also, IORD and IOWR are provided to access non-cacheable memory region.