AUTO baud rate detection FOR UART connection to PC

[mike20200]

Im using PIC 16F877A with 20MHZ crystal and i wonder how to auto detect baud rate instead of setting it constant. DO anyone haev example for it?

[Josuetas]

Hi, this will be found in Assembler but its really simple code, you can find it on the
Bootloader application Note from microchip for pics 18F. This code has a nice
autoBaud detection routine at the begining.

AN851

http://ww1.microchip.com/downloads/en/DeviceDoc/00851.zip

My guess, since i am not a great ASM coder is that they always send a $0F a the beggining of each packet, this $0F is used to measure the baud rate.

Since the BootLoader applies to 16F877 it will help you.

[mike20200]

thx alot but i prefer the code in Basic. i need to combine this auto baud rate code with the rest of my other code.anyone can help and got example to share?