USART interrpt in PIC16F877A

[amindzo]

Hi,
i can solve my problem. it works but i have another problem.when i use this interrupt with a simple program it works but when i use this in a big one(my program is about 1000 lines) it doesn't work.
i also use 20M crystal but it doesn't work too.
what's the reason?

[mister_e]

begin small. Have a look there
http://www.picbasic.co.uk/forum/show...1&postcount=11
and forget the SERIN stuff. Your PIC have an USART, use it with HSERIN or by reading RCREG