PROBLEM:
PPM converter only worked if I first connected the Rx and only after a few second I connect the PPM converter.
SOLUTION:
Update firmware.
PROCEDURE:
1- Buy one AVR programer (arround 4USD) pay attention that you need one 6 pin connector cable.
2- Connect AVR programmer to PC and follow this tutorial:
http://elecrom.wordpress.com/2009/04/19/usbasp-tutorial-usbasp-driver-installation/
to install the windows/linux drivers (latest version of drivers found here http://www.fischl.de/usbasp/)
3- Download and install a programmer software: http://khazama.com/project/programmer/
4- Connect the AVR Programmer to PPM encoder board
5- Download the latest version of the firmware. I use this one because it worked fine http://www.rcgroups.com/forums/showpost.php?p=14347844&postcount=2445
6- Decompress the downloaded file to a folder.
7- Use the program installed in step 3 and select AVR: ATMEGA328P option.
8- Use the program installed in step 3 and select file Load EEPPROM and select the HEX file that suites you from step 6. In my case it was ppm_encoder_v4_3+bootloader_16Mhz.hex
9- Use the program installed in step 3 and select file Load EEPPROM and select the HEX file that suites you from step 6. In my case it was ppm_encoder_v4_3+bootloader_16Mhz.hex (don't know if this step is necessary)
10- Click the button Autoprogram.
This is my personal experience. If needed adapt it to your case.
Replies
Hello, if you purchased your PPM encoder from the DIY Drones store, it should come programmed with the latest firmware. If you would like to change the firmware, you will need a programmer, such as the AVRISP mkII programmer. It seems like it might be an issue with the RC gear.