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Changing the I2C pins on a FEZ Mini


#1

Just a shot in the dark.

Is it possible to change the SDA and SCL pins on the Mini?

No problems if not - just makes it a little easieras a replacement for a Basic Stamp

Many thanks
Dave


#2

On systems where I2C can be moved, then I2C is generated in software and this is not optimal for professional use.

On FEZ I2C uses dedicated open-drain pins and so the I2C pins can’t be moved


#3

Hi Gus
Thanks for the answer. I sort of suspected that but just needed to confirm. Often there are a lot of hidden features that can be accessed by changing registry settings.

You were right re the I2B on a BS2. The I2C is only on the BS1 and the reference I was reading was about 2004. With the BS2 they use bit-bashing to do it.

I have already modified my SD21 Servo Controller board once so I could put a PicAXE 28x2 module in it and line up the I2C there, but unfortunately the PicAXE range can only handle 16bit maths and there a few situation where I need 32 bit. So now I’m moving up to FEX.

Again many thanks for your dedication and help
Dave