I'm using AT91SAM9261-EK and I have to make an impulse counter from it. There is some detector with photoelectronic multiplier, it has RS-232 output. My boss wants AT91SAM9261-EK to receive impulses from detector (using USART) and indicate total, average, etc.
What maximum frequency can I handle correctly if I use Windows CE 5.0?
Or it is better to write it all in assembler?