PIC18f2455 blink

[iugmoh]

Oky, What is the different between EEPROM and DATA ?

[skimask]

Oky, What is the different between EEPROM and DATA ?

Besides the obvious syntax differences between the two, not a lot, ALMOST identical.

You can make a DATA statement a 'readable' address, a label. Can't do that with the EEPROM statement.

[iugmoh]

I understand that DATA is upgraded version of EEPROM

[skimask]

I understand that DATA is upgraded version of EEPROM

Maybe......There is a difference. Either I can't remember, or I can't put my finger on it at the moment.
Of course there's always the chance that I just don't know

[iugmoh]

I change the PIC16f877A with PIC18F452 and nothing is working , so I will learn every thing step by step of PIC18f452

[skimask]

I change the PIC16f877A with PIC18F452 and nothing is working , so I will learn every thing step by step of PIC18f452

You really don't have to 'RELEARN' everything...because there really isn't anything to 'RELEARN'.
There is a document somewhere at Microchip that describes some basic differences between the '877 and the '452 that might help you out...

But...quite frankly, no code...not much help...'cause there just might be that one hidden thing that is stopping everything.

Have you made blinky LED work on the '452 yet?
And just because you've made it work on the '877 doesn't mean you can make it work on a '452....it should...but it doesn't.

[iugmoh]

Oky thanks skimask for your information I will try to make blink lea and see the differents