I have been working on RS-232 communication lately and I am currently at the point of if I should use UART or USART. USART can operate at faster speeds, but UART has more support. Therefore I am quite confused as what to choose. Perhaps any of you could clear up my problem.
A USART is a superset of a UART. If you are asking should you use Synchronous or Asynchronous serial I/O, that's different. Both UART and USART support Async which is what is used by PCs for serial I/O. What specific UART are you looking at and what speeds doesn't it support.
To be more specific the PIC I shall be using is a 18F4620. It has the TX and RX pins, but for TX it states:
"Asynchronous serial transmit data (EUSART module)"
and for RX:
"Asynchronous serial receive data input (EUSART module)"
Ok, thanks. I shall use the 18F4620 in UART mode, with both the TX and RX lines. If I am not mistaken, that is all that is needed to use in UART mode correct?