Ok, having established that it's not a good idea to use SEROUT when interrupts are used in the same program - but is this true of the PBP I2Cwrite command too?
I've just recently got SPI working in PIC hardware (vs bit shifting out a pin) - but I'm having difficulty finding any similar hardware examples for I2C?
I2Cread / write are more tolerant of timing requirements as they are clocked synchronously. SEROUT/IN and its variants are async and surely have a problem with anything disturbing their merry timing. Option is use HSERIN etc
Hi Jerson - you've stumped me there!Quote:
Originally Posted by Jerson
I'm wanting to control a MCP4651 (a dual I2C POT) with a 16F690 using I2C (so PIC as master....sending 'wiper' positional data to a pot) .....where does HSERIN come into play?
Hehehe
that came from your first statement. Having established ...... It has no connection with I2cwrite. Just an opinion of mine that was expressed on Serout2 and interrupts
Also, you can use I2Cwrite when you are in the interrupt routine, when the interrupts are disabled. I ussually do it like that without any problems.
Robert