Has anyone ever attempted to use more than two EEPROMS on one OOPic.
If I am reading the object correctly, you should be able to reconfigure
the wiring to the A0, A1, A2 connections on the EEPROM chips to define
a different I2C address and then when you specify the node in your
program, you would use the actual address, not the constants E0 & E1.
Are there two I2C controllers on the OOPic or do the on board EEPROMs
use the same I2C bus as the IO lines (Lines 19 & 20). Just curiosity
getting the best of me.
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Yes, this is perfectly OK and I've done it. Just track your addresses
and sure you don't conflict with the E0 (program) EEPROM.

DLC

tinslwc wrote:
> Has anyone ever attempted to use more than two EEPROMS on one OOPic.
> If I am reading the object correctly, you should be able to reconfigure
> the wiring to the A0, A1, A2 connections on the EEPROM chips to define
> a different I2C address and then when you specify the node in your
> program, you would use the actual address, not the constants E0 & E1.
> Are there two I2C controllers on the OOPic or do the on board EEPROMs
> use the same I2C bus as the IO lines (Lines 19 & 20). Just curiosity
> getting the best of me.
> ------------------------------------



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--- In o...@yahoogroups.com, "tinslwc" wrote:

> Are there two I2C controllers on the OOPic or do the on board EEPROMs
> use the same I2C bus as the IO lines (Lines 19 & 20). Just curiosity
> getting the best of me.
>

IOLines 19 & 20 use the internal hardware I2C gadget and are used for
oDDELink only. You can not use them for adding EEPROMs.

The local I2C bus that connects to I2C peripherals and the EEPROM(s)
is bit-banged.

Richard

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