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Altera_Forum's avatar
Altera_Forum
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9 years ago

UART in nios II

Hello We need to use UART com on our NIOS poject We are using cycloneV what should be the best qsys architecture in order , so to free the cpu so it can perform other task while the sy...
Altera_Forum's avatar
Altera_Forum
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9 years ago

I mean the UART core which comes for free with Qsys has no FIFO; then you may need to add a dma component to manage rx data if you want performance.

Other commercial UART cores usually have FIFOs or a build-in dma (like the 16550 you mentioned), but the way to interface to Nios depends on the core specifications; you must refer to the datasheet or an application note from the vendor.