Thanks. I'll test this and get it into the RC.

Hi @envenomator I'm testing this at the moment. Could you provide a series of steps so that I can test it?

Hi; I'll send you an assembled 'hexload' binary to run in mos later today, currently in the office without access to my git and private workstation.
The steps are:

1. Connect the Agon with USB and note which COM/serial port it gets on your PC
2. Connect a serial terminal at 115.200Baud to that serial port, or edit my provided python script to reflect the serial port in it's configuration
3. Start the 'hexload' tool on the MOS commandline and give it 'vdp' as option - 'hexload vdp'. This command now waits for an incoming Intel hex stream from the remote PC/USB serial port
4. Paste any Agon-compatible hex file in the serial terminal, or start my python script with the hex file as argument
5. After transfer, the hex file is placed in Agon memory, at the memory location(s) specified in the hex file. If no location is specified, location 0x40000 is assumed as default. This is reported by the tool

@envenomator cool thanks.

Forgot to mention; the same MOS tool, started with the 'uart1' option, connects to the GPIO serial pins and receives Intel Hex content from that. But then, you need to connect GPIO + gnd pins to an external serial converter. With the 'uart1' option, there is the option to also specify the local baudrate. With the 'vdp' option, the default is 115.200, as that is compiled into VDP and the maximum transfer I can reliably achieve over the ez80<->esp32 serial interface.

You can specify a filename as last option for both 'uart1/vdp' and the content from the incoming Hex will also be dumped to the local uSD card as a binary file

hexload.zip

Hi Dean,
Please place the content of this zip archive (two files) in your /mos/ directory in order to start 'hexload' as a MOS command.
On your PC, you can use either a serial terminal and paste hex content directly, or use the script at this location:
https://github.com/envenomator/agon-hexload/blob/master/send.py
Please edit the DEFAULT_SERIAL_PORT variable to reflect your USB/Serial port to Agon