Nios II Uart

Altera_Forum · ‎05-18-2005

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 little piece of c code witch drive the nios II uart ?

Thanks a lot

Etienne

Altera_Forum · ‎05-20-2005

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.