I was able to get the e-mail about the PIC program that was not able to do Even Parity. Below is the portion of the e-mail that applies. I hope this helps.
A while back I controlled a VK-S274 camera block from a PIC 16F628. I wrote my program in PBASIC and compiled it in PicBasic Pro. I recall the one hurtle I had to overcome was the fact that my PIC could not talk to the camera block because the default is that the block is set for Even Parity and the PIC cannot send serial data with Even Parity, only no parity. Therefore I had to connect the camera to a PC com port using a circuit to invert the data and convert to TTL levels. Then I was able to set the camera's serial settings to 4800,N,8,1 and save it to EEPROM. Then the PIC could talk to the camera directly without any extra circuitry at 4800,N,8,1,non-inverted.