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Hey Guys,

My project with PIC32MX550 uses the 24C32 EEprom macro. My hardware uses the 24AA32 EEProm.

Only in software mode the first address value can be written and read, sequencing values none.
In hardware mode no data is read or written.

Did several delay test to check but no results...

Update?

Hi Patrick

Can you post you program?
What are value of the pull up resistor?
And is your EEprom with an A on the end? like 24AA32A
Is this IC pluggable with 8Pin?
regards

Stefan

Hi Stefan,

Sorry for the delay, lot to do..

I build the I2C read and write routine with the peripheral I2C macro from the Creation menu.
This works great without any problems. Unfortunate only in software mode. Hardware ch1 and 2 do not work..

Now I switched to FC9 and recompiled my project.
In this modbus project (PIC32MX550F-256H) all works except I2C routine. This is an issue i frequently see with updating FC.

I wil check what is wrong with a data analizer. This will take a while..