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[yasser hassani]

Hi dear Acentronics.
Thank you very much for your helpful program. Sorry for my delay!! I found out I can write program without interrupt. I simulated your program with proteus. It worked correct.
I want to use PIC16F877.
I know that micro's eeprom hasn't 1500b memory.
You know, I want to use serial eeprom for example 24c04 (4K bit)
Can you help me about changes on your written program for using serial eeprom ?
I think that I should use i2cread command like below:

i2cread sda , scl , ctw , I , Value

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Again more and more thanks.
Regards

[Acetronics2]

I simulated your program with proteus. It worked correct.
I want to use PIC16F877.

Hi, Yasser

It's up to you to choose which pic you want to use ( they call it "democracy" . LOL ) ... just note LCD + ext EEPROM + 1 Pushbutton can be driven by a 18 Pins Pic... not to say a 16C84 ...

[Humour]

Simulation, simulation, ... that do not exist in the real World ... Last time I tried to simulate a 555 on that thing ( démo example GIVEN !!! ) ... just returned me "ERROR" !!!
This soft is sold ... 15000 US $ !!!

The 555 on its bredboard was working fine ...

[/Humour]

I know that micro's eeprom hasn't 1500b memory.
You know, I want to use serial eeprom for example 24c04 (4K bit)

Also note 1500 BYTES need a 24LC16 to fit into ( 1500 *8 = 12000 ...)

Can you help me about changes on your written program for using serial eeprom ?
I think that I should use i2cread command like below:

i2cread sda , scl , ctw , I , Value

Something like that ... yes !

I'm not so used to external EEPROMs ... so, I'll need some little hours to "update" my knowledge ... but I've seen that subjects have been fully covered on this Forum ...

I will encourage you to carefully read the 5.34 and 5.35 $ of the new and "Web" manuals, ( 5.29 and 5.30 Oooooold one ) as there is interreaction between the control Word and addresses for those EEPROMS ...

I keep on the line ...

read you soon

Alain

[skimask]

I want to use PIC16F877.
I know that micro's eeprom hasn't 1500b memory.
You know, I want to use serial eeprom for example 24c04 (4K bit)

Might not have 1500 bytes of eeprom, but I'd be willing to bet that you'd have an extra 1500 bytes of program memory left to use.

Can you help me about changes on your written program for using serial eeprom ?
I think that I should use i2cread command like below:
i2cread sda , scl , ctw , I , Value

I'd also be willing to bet that there's something about the I2CREAD command in the manual...

[yasser hassani]

Special thanks from dear friends that help me in this thread.
I use I2CREAD and it works excellent.
========
Regards

[Acetronics2]

Hi, Yasser

It's a pleasure for us too ... to know you're happy with your project !

Regards

Alain

[mister_e]

For 15K$ you can't buy a head... but a least you'll be well equipped

Proteus and ALL simulators in general = b u l l s h i t

Nothing beat a head and real parts on a board... that gives REAL results + possible layout behaviour... the real thing.

Add some test equipment, and you're in business.

Sim are for lazy people.