Serin Problem 16f819

[mister_e]

You defined a HS osc... it's suppose to be for a XTAL>4MHZ... but it souldn't be the main problem

OSCCON do nothing here as you're using an external one

You NEVER EVER tell to disable the LVP mode

9600 baud @ 4mhz will NEVER work unless you're using the PIC USART or maybe DEBUG in worst case. There's a BIG warning in the fabulous manual about that.

DEFINE SHIFT_PAUSEUS 100

is useless

[jjohannson]

This code was taken from larger code. I just wanted to isolate the serin and serout commands. that is why some of the configuration lines are still in the code. What is LVP mode? You say that you cannot run 9600 baud w/ a 4MHz crystal. Would this also apply to serout, because I have had no problems with that at all.

[mister_e]

Don't use SERIN/SEROUT/SERIN2/SEROUT2 @ 9600 bauds @ 4MHZ. DEBUG may work better. BUT HSERIN/HSEROUT will works a treat... on the right pins.

Use the PicMultiCalc to generate the right HSERIN/HSEROUT DEFINEs

http://www.mister-e.org/pages/utilitiespag.html

LVP mode HAVE TO BE DISABLED.