PIC to PIC over I2C – Default Examples

[LeighM]

Hi Matt,

I2C routines in FC are stable to use as long as they are based on hardware?

Yes

And therefore can be used across all owned chip pack devises where applicable?

Only AVR and PIC 8/16/32 at present

Secondly, did you ever sort out an interrupt based routine as mentioned in your last post here

Sorry, it's looking non-trivial, so don't have time at the moment

Leigh

[Docara]

Hi Leigh,

So I'm guessing timer interrupt to pole the hardware receive register would be the preferred way to go then? Or would an Interrupt on Pin Change Interrupt would be an alternative?

Thanks
Matt

[LeighM]

Yes, of those options, it would likely be best to call the cal_i2c::Slave_Status() on a timer interrupt.
Another option would be to have a short/fast main loop and poll, then take action based on status (aka state machine), depending of course on what else is being processed.