PCB

The PCBs got all the way to London and then vanished so having to wait for them to send out again.

So in the meantime working of the PS/2 driver with STM8

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PS/2 Interace

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Over Christmas, I've been writing the software for the PS/2 interface, this will run on an stm8s003f3  from Mouser, they are an eyewatering £0.67 in the TSSOP package and £0.325 QFN but as I cannot solder QFN by hand it will by the TSSOP. They run at 16MHz which is faster than the base Z80 but the same as final Z80 version based on the Z84C1516FSG. The Z84C15 is a Z80 at 16 Mhz with the support chips of the KIO (SIO, PIO & CTC) it is still in production. The stm8 and the Z80 will communicate via the serial link at up to 460800 baud, the Z80 side will likely limit it to less than this. If I get around to an eZ80 version that will communicate using I²C freeing up the UART. The software I'm currently working will drive 2 ports one for keyboard and one for a mouse. The devices I'm using to test are USB via a PS/2 adapter, the genuine PS/2 parts seem to be a bit problematic, it may need a pull-up or pull-down resistor. The source can be found on GitHub in the STM8 subdi...
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