Calibration and programming
I spent about 15 hours so far this week on the project. I’ve calibrated the accelerometers. The gyros, infrared things, pressure sensors, and thermometer all still need calibration. I’ve been working on getting the GPS information integrated in the software. It mostly works now, but I had to let the GPS take up the console port on the 386. I still need to correct the parsing subroutine to make it work right. I need to build a pitot probe. Then I will test everything on the ultralight.
I had a problem with the radio signal getting garbled in the conversion process. I found that the problem was with a timer interrupt that I was using as a system clock. I had to get rid of the timer and replace it with something a bit less accurate.
Note to self: don’t turn GPS on before 386. It can trigger the backup boot mode on the 386 if it is running at 9600 bps. I might have to go back to 4800 bps to avoid this problem.