It took me much less time than expected to be able to interact with the OMEGA board:
Before testing my USB to keyboard adapter board, I had tested the reception of codes from the USB keyboard. So I knew it was working. But I still didn't know how MSX BIOS scans the matrix keyboard.
After a few attempts and oscilloscope tests, I was able to send 'things' to OMEGA. But obviously not the right codes. After having researched the official codes of the MSX keyboards, I realized that the BIOS installed on OMEGA manages the Japanese keyboard! Why not!...
My first goal being to be able to type a little Basic program and run it, I decided to code the essential characters. First, the alphabet:
I am totally amazed at how easy it was to turn on my USB / OMEGA keyboard interface. I didn't have any issues with the design of the board, everything worked right from the start. Coding the software of the small STM32G0 processor was really very easy with the STmicro IDE.
For now, the coding is more of the quick and dirty type but it works very well!
For now, the coding is more of the quick and dirty type but it works very well!
On the way to my first "Hello World" program ;-)
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