I2C Read and Write

[falingtrea]

Also I've noticed that if I put a 10ms Pause between my write and read my serial coms stops responding, does the PAUSE command disable the interupts or something?

Serial rate of 9600 baud is about 1 msec per character so a 10 msec pause could definately cause problems. The manual says this about HSERIN:

"As the hardware serial port only has a 2 byte input buffer, it can easily overflow if characters are not read from it often enough."

You might have to break up the pause into chunks and do a serial read in between. Maybe do 3-4 HSERIN or SERIN calls with a 2-3 msec timeout.

[JD123]

Tim, it doesn't look like he's using the HSERIN. Ports RA.0 and RA.1 aren't the serial ports on this PIC.

[DerekMacom]

Hi there....

I have a project I've 'adopted' that I've been asked to add a feature to. I'm soon going to be starting again from scratch as there are many things about the code in it's current form that aren't good. Mostly that there is way too much stuff going on in the interrupts. I was hoping to add this feature quickly but looks like this is going to be another thing to add to my 'reason's to start from fresh' list. I'm useing the internal eeprom for the time being to buy me some time until I get a chance to start fresh.

Thank you to you all for trying to help.
Derek

[falingtrea]

Tim, it doesn't look like he's using the HSERIN. Ports RA.0 and RA.1 aren't the serial ports on this PIC.

Yeah, but Derek mentioned at one point that when he put in a PAUSE he had problems with his serial comm. I figured he must have more code than the snippet he has posted.

[falingtrea]

Heh! Saw this thread reference in another I2C thread. Looks like it might apply here to.

http://www.picbasic.co.uk/forum/showthread.php?t=587