Please find here information and sources or RISCOS projects I'm doing
The MiniUART for the rasberri Pi. Only tested with the model 3B ( I think it is called ;-))
Source code of 23 September 2018 this has the prototype of the interrupt for receiving data
Source code of 28 September 2018 this has the improved prototype of the interrupt routine. Also global variables are removed as much as possible
Worked on receive interrupt and on the device driver entries.
Worked on device driver entries.
Hmm Problem with the interrupt routine only 9 chars are received while I send 30.
Still problem with interrupt. Try to make code more efficient.