Constantly output character from UART | Cypress Semiconductor
Constantly output character from UART
I'm thinking of how to constantly output a character from the UART.
For example, the character 'h' will be outputted from the UART constantly.
The challenge is, I want to do it without calling a function like printf (ie. I don't want to use the CPU) AND without using the DMA.
Is that even possible? Or am I being too imaginative?
I know that the TX reg for the UART is a FIFO type, so I don't think I'd be able to hold data in there permanently.