Parallax Propeller chip Help thread

[atmk]

I am trying to make a tilt rotor vtol craft and chose the Parallax Propeller chip to do my mixing, not being a very skilled programmer I could use some help.

I now know of several different projects that use propeller chips in rc aircraft and though i could create a place to share information and code

this ones mine: http://www.rcgroups.com/forums/showthread.php?t=936738
autonomous flight controller:http://www.rcgroups.com/forums/showthread.php?t=734456
what turned into the "minimix" thread:http://www.rcgroups.com/forums/showthread.php?t=777427&page=3
and there are more...

hopefully this tread can be helpful to everyone and be a place for those that haven't stared their own tread to talk about their propeller projects

:D :D :D

[atmk]

there is another propeller project for a quad rotor by djMidnight who wrote a kalman filter for the sparkfun 5dof imu

http://www.rcgroups.com/forums/showthread.php?t=944087

[shanghai_fool]

I finally got my protoboard yesterday and got to playing with it this morning. It looks very good for handling receiver outputs for both PPM and PCM in a single COG. The fact that you need 2 separate counters to handle PCM and each COG has 2 counters makes it work. And, since you can program any I/O pin dynamically to the counters means you can do it in 1 COG with any number of channels. I am supposed to get an MCP3208 today so I can add A/D. This makes the 4th MCU I have had to learn this year but it looks like it will work and much easier to program than the AT91SAM7A3. I have so many I2c and SPI devices to talk to, I hope the serial routines are easier. Thats my next step. with only 32k of instructions + data, I am surprised that Dean got so much packed into his system.

My first routines were to detect the receiver, test for single or dual pulse (PPM or PCM), check how many channels, read the repetition rate, and measure pulse widths.
Now for the fun parts.