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Re: QL IO board?
Posted: Tue Jul 18, 2023 8:28 pm
by Pepperm
here is a screen shot of a bit of the article.
Re: QL IO board?
Posted: Tue Jul 18, 2023 10:30 pm
by tofro
That is - unfortunately - not so useful for the QL. This schematic apparently uses the handshake lines RTS/CTS and DSR/DTR of the 25-pin PC serial port to bit-bang I2C. The QL has only half of these and they are not particularily easy to control as you need to jump through hoops in software to switch them.