Quote Originally Posted by aberco View Post
If I understand correctly the timing issue will also "kill" I2CRead/Write, Shiftin/Shiftout, LCDout... There's hardware modules for SPI and I2C, even if they are not used by these instructions. However there's not much solution for driving the LCD.
I use I2CRead/Write and LCDout with a USB connection at the same time with no problems. However, I haven't tried using Shiftin/Shiftout and USB at the same time.

I got the LCDout command working together with the USB connection thanks to the great help from DT. You can see the details in the next link

http://www.picbasic.co.uk/forum/show...4&daysprune=-1

Robert