Make your own I2C Chip

Does somebody kno whow to make your own I2C chip.

I want to program serval of 16F628 PIC that when i send I2C information from a master the 16F628 works as slaves.

is there a sample code or something?

Microchip has several examples for master & slave with very well documented code http://www.microchip.com/stellent/id...0&filterID=392

All I can tell here (to save you some time) is:

Take care when reading (and implementing) the AN's

There are still some bugs!

Hi NL2TTL,

I make the Slave-Display for the http//www.alphavibe.com

The PIC is a F628A, communication is serial (you have change to I2C)
and the PIC multiplex two 7-seg blue LED's for display the time. So there is much time for other task. Just a I/O expander...

If a copy of this PBP code helps, let me know.

Best regards,
Gerben

Hi, N2TTL

Something here in PicBasic !!!

it was intended for a 12C671 ... no problem then !!!

Gp5 is serial input
Gp4 is output to an opto-triac
Gp3 is reset
Gp2-Gp0 are addresses ( Swiches active = LOW )

The RS 232 to I2C move will be quite simple ...with PBP !!!

Alain

I've mentioned before on other threads the reasons why I can't contribute to this topic, I can however give two handy hints...

1. Microchip's MCP23008-E/P and MCP23016-E/P. As I/O expanders, they're easy to use, very simple PBP code use I2CREAD and I2CWRITE, versatile - and cheap!

2. Look at this site (greetings Robert) for PBP Code...

http://astrosurf.com/soubie/pic_as_an_i2c_slave.htm

Melanie

Quote:

---

Originally Posted by Melanie

2. Look at this site (greetings Robert) for PBP Code...

**** just edited that out **** Melanie!

Melanie

---

Hi, Mel

May be something forgotten in the link ???

Alain

Ooops! Thank Gawd my server is firewalled! Just posted the link to my own I2C Slave Notes in error! anyhow... been corrected... thanks Alain!

Thanx to all, i will try something with this code examples.

You will hear from me!