So someone needed to drive and read the linear ccd TCD1254GFG and it turns out that the driving pulses has the same timing requirements as the TCD1304, so the firmware for the TCD1304 required very little modification to work with the TCD1254.

The TCD1254 comes in a different package, so it also required a little work to make a circuit board. But less saying and more doing:

but not too much doing ..for instance I didn't bother scaling the x-axis here

and also, I've only made an STM32F401RE-version ()UART). I'll get around to fixing up the STM32F103 and the STM32F405 during summer, and perhaps even that STM32F303 I started and didn't complete because life suddenly made different plans