OpenGD77

Thanks for the clarification, Roger!

So now the only information I miss is how to upload satellite data to the radio in Linux (preferably in Python).

(and I need to build an antenna for satellite QSOs...)

W9YA mentioned my program and wrote: UM...will the memory map changes affect the codeplug location ? So are the addresses and format of the codeplug changed in the new beta compared to the latest releases? And what is the procedure to upload satellite data, I'd like to code that in Python so that I ...

I am the author of program GD77transfer.py, which reads/writes the codeplug and also calibration|flash|eeprom|mcurom. The details of the firmeare loading system is in the python loader. The program GD77transfer.py does not handle loading the firmware. There is already program gd-77_firmware_loader....

I am the author of program GD77transfer.py, which reads/writes the codeplug and also calibration|flash|eeprom|mcurom. I'm waiting for the stable release and I intend to update GD77transfer.py when I get information on the changes to codeplug memory address and format (and also calibration|flash|eepr...

The MCUXpresso is officially supported only as a Debian .deb package. I use mainly Fedora 34, which is a .rpm based system. Below I describe how the .deb package can be extracted from the official installation file, how it is converted to a .rpm package and how it can be installed and how to load th...

Hi! You don't have to edit the Python program, you can use the -d command line parameter. So, plug in and power up your radio and issue the dmesg command. Look up the tty name and then issue the GD77transfer.py command: $ dmesg ... usb 5-2: Product: MCU VIRTUAL COM DEMO usb 5-2: Manufacturer: NXP SE...

Another problem might be wrong serial device parameter (the -d parameter for GD77transfer). In my Fedora 34, the parameter is typically /dev/ttyUSB0. You can check the correct device name with the dmesg command right after you plug in and power up your radio.

Hi! The actual error is the last message, an input/output error. Earlier in the error messages I can see that GD77transfer.py caught the error while it was waiting for a response from the radio (line 257). Is your radio on normally? When uploading a codeplug your radio must not be in firmware upgrad...

The site says that "Two resistors can be omitted". I built my cable without the resistors. I used 2.5 mm and 3.5 mm stereo plugs and a USB connector.

73, OH1FSS

You can find the programming cable diagram for RD-5R here: https://radioamateur.us/opendm5r/

The cable for RD-5R is the same as GD-77 except that D+ and D- are swapped.