PIC16F84A EEPROM problems

[The Master]

Probably the PIC EEPROM is bad OR there's a setting in your device programmer software that you overlooked.

What i mean is that some Device programmer software allow to program OR NOT the PIC EEPROM. Sure it's something like that.

right. ive just tested it on another chip so its not that. theres 1 more fuse value you didnt mention so i changed that. the programmer app has an EEPROM override button so i tried that too and still as before.

this is confusing. random thought, could this possibly be anything like those chips where you have to access the *internal* EEPROM asif it was *external*?

another thing is that the datasheet for this chip says EEPROM stuff has to be written in a certain way but it only gives examples of assembly code so i dont understand it

[mister_e]

compile the first example the send me the generated .HEX file (in a .ZIP)

Everything work as expected here.

Which PIC programmer and software do you use?

EDIT: Which PBP version ?

[The Master]

compile the first example the send me the generated .HEX file (in a .ZIP)

Everything work as expected here.

Which PIC programmer and software do you use?

ok, this is the first example without the first line (or it wont compile)

the programmer i think is DIY K149 or 3149B-E
the programmer software is micropro25

Edit: Microcode studio 2.2.11 / PICBASIC PRO 2.45

[mister_e]

OK, assuming you have copy/pasted the whole first example, something is bad with your compiler... i guess. If i use the .HEX file you sent, nothing work. So i would suggest you to re-install PBP.

[The Master]

OK, assuming you have copy/pasted the whole first example, something is bad with your compiler... i guess. If i use the .HEX file you sent, nothing work. So i would suggest you to re-install PBP.

is there a certain way to install it cos last time i installed microcode studio then copy/pasted the picbasic folder into C:\ and it picked it up itself

Edit: i copy/pasted the whole code except the first line. the first line "@ __CONFIG _XT_OSC & _WDT_OFF & _CP_OFF" causes an error while compiling "opcode expected instead of '__config'"

[mister_e]

This error is because i use MPASM to compile the code, for PM syntax, you need to have a look at the link i posted above for the config fuses.

I'm reading the .HEX file you sent... may i assume you didn't selected the right PIC in the MicroCode studio drop list? I suspect a 16F877 which is the default one...

You should have your PBP installation Disk, just reinstall over and make sure MicroCode see the right PBP installation path... but first make sure you selected the right PIC in the drop list.

[The Master]

OMFG!

just before you posted that i was looking at the asm file and wondering why it said
INCLUDE "16F877.INC"

i never saw that dropdown box! what a retard! lol.

well, i programmed it again (this time with the correct chip selected) and your example code makes some lights turn on then all of them which i guess is what its supposed to.

cant believe i spent hours on google yesterday and all day today talking to you guys and it was all because of a dropdown box. im gonna go to bed now, ive had enough today. lol

thanks for all your help and sorry for wasting your time