Do you know any hex message to send to tone x one usb serial port ?

[daniel19870401]

i trid to use esp32 s3 to upload your program, but the io expander chip is different one...
in your program, you use ch422G but my esp32 s3 use ch343P...
so it doesnt work...the "NoUSB_Debug_logger" shows the message "CH422G_read_input_reg() faild"

i also trid to program a midi adapter transfer midi cable signal to usb midi signal...it doesn`t work...

but i connected the usb cable to my mac and open the serial monitor (coolterm app), i saw a usb serial interface...
and i push the bottom on tone x one , the serial port will feedback some message...

so....my question is Do you know any hex message to send to tone x one usb serial port ?
i just need to find some way to change the preset in stomp mode in our show....
and use MTC (midi timecode) to switch the preset in the right moment~
thank you~

[Builty]

Hi Daniel.
Firslty, the CH422G is only enabled in the releases that are for the Waveshare 4.3B model. Other releases don't try to use this chip.
The No USB logger is really old and is compiled for the 4.3B.

I see you are using the Devkit-C board. This board is available with some different chip options. Usually one with 8MB flash and 2 MB psram, and one with 16 MB flash and 8 MB psram.
The issue there is these 2 use different methods to talk to the psarm. One is quad SPI and then bigger one is octal SPI.
If the wrong one is used, it will crash on boot.

Check out the releases/beta folder. For 1.0.6.1 I have created 2 different builds, one for the each of these. If you check the writing on the chip the part number might help to find which one you have. Or just try both and see which one works.

For that Mac serial monitor, I guess you are trying to connect directly to the pedal. The problem there is the communications protocol is very complicated. Even just changing the 1 byte needed to change the preset requires reading out about 3000 bytes, decoding the data, changing the right byte, recoding it, and then sending it back. It would need software for that.

If you can get the Devkit-C to boot, you should be good as you can use Midi to switch the preset.

[daniel19870401]

thank you~~
i know its a very hard work...3000 bytes inculde CRC?
i read your source code, its too complicated...
so thank you again~ i`ll buy the right esp32 on your list to try this program~

[Builty]

Actually I typed that wrong. Changing a parameter needs sending/receiving of about 30,000 bytes (30 KB.)
Yeah its the kind of project where it starts small, and you just build and build and at the end, look back and are almost suprised at how big and complex it has become.