topic Serial protocol in 8-bit Microcontrollers

Serial protocol

karthick1987 — Sat, 14 Aug 2010 21:40:55 GMT

HI guys,

I am using a GT16A micro and I was wondering if the serial communication protocol can be changed. Normally we have

Start bit + 8/9 bits + stop bit

Is it possible to have

8/9 bits + stop bit ?

If yes how can I do that ?

Re: Serial protocol

rocco — Sun, 15 Aug 2010 01:14:52 GMT

No, it is not possible to eliminate the start-bit.

Without a start-bit, how would you know when a transfer has started?

Re: Serial protocol

karthick1987 — Mon, 16 Aug 2010 09:36:59 GMT

I thought of that too but I am using an Xbee which runs a different protocol. Apparently it only has a the transfer bits + parity + Stop bit. this is a bit bizarre. but I will look into it further.

cheers