My learning thread - thanks everyone

normally uses for debugging and changing in flash in run time

you mean we are just programming the PIC while its running?

here is a sample code for software uart that u asked
boot loader is used to program a pic
very good description is here
http://dev.emcelettronica.com/what-microcontroller-bootloader-and-how-it-works

majoka thanks so much... I will study that and make an application... i will let you know..

guys I have several questions..

1. Is it possible to reset the Microcontroller using software reset? I mean instead of pulling to High/LOW the clear pin..


2. I know the function of watchdog timer but I need more clarification.. for example my code get stock with a non ending loop if we enable watchdog timer there is a change of reseting itself.. right?
but how to set the max time of watch dog timer?


3. what GPS module you can recommend that is easy to interface based on your experience??

romel_emperado

hehe

watchdog timer can do this

majoka.. tnx I understand now the sofware uart...

its applicable also to other controller.. right? no changes to baudrate formula?

@ romel

its applicable also to other controller.. right? no changes to baud rate formula?

yes it can be done for other controllers but changes in trick according to the internal structure of hardware

baudrate formula will change as the current formula only applies to 8051 architecture.

thanks ajay ang majoka .

yes current formula only for 8051
here is a code for pic uart it is in c for hitech pic compiler
it is for pic16fxxx