Hi
I am trying to write some code, in assembly, to communcate serially between a PIC17F628a and HyperTerminal.
The PIC has an inbuilt USART, but i was just wondering, will i have to use something like a MAX232 to lower the voltages coming from my computer, + and - 12V, in order for the PIC to be safe.
Another thing - the signals coming out of the PC are reversed, a high signal is -12V and vice versa. Will this need to be inverted for the USART in the PIC to receive it or do USARTs automatically do this?
Thankyou