16f628a usart

[c_moore]

Hello everyone,

does anyone have a working example using a 16f628a USART? I am trying to just send a byte and echo it back to the serial terminal. I am using a Easypic7. Thanks for any help.

[mackrackit]

http://melabs.com/samples/PBP-mixed/usart.htm

[c_moore]

Thanks for the reply Mackrat. I will try it,but I don't see how that will work for a 16F628a.

[mackrackit]

Thanks for the reply Mackrat. I will try it,but I don't see how that will work for a 16F628a.
Why would it not work? It is a demo on how to use the hardware serial port.

[c_moore]

Hi Mackrackit,

Im using a 16f628a and it looks like the code is for a 16F877a or something because it uses port C 6 and 7 for rx and tx. anyway I got something working. it turns out that on a easypic7 when using a 16f pic I needed to use the 18B socket. so once I got the right socket everything started working. thanks.

[keithdoxey]

Look at the Datasheets. 16F877 uses C6 and C7 as you say, but the 16F628 used B1 RX and B2 TX

the only thing that I can see needs changing from a quick glance is the line....

TRISC = %10111111
to
TRISB = %11111011

[aliciaDJones]

What is 16f628a usart ???:confused:

[Demon]

What is 16f628a usart ???:confused:


UNIVERSAL SYNCHRONOUS ASYNCHRONOUS RECEIVER TRANSMITTER (USART)

RX=receive
TX=transmit


Look at Hserin/Hserout commands in PBP manual.


Info on 16F628A can be found here:
http://ww1.microchip.com/downloads/en/devicedoc/40044f.pdf

Robert