Zitat von
hap
Maybe power supply related. The Sparc manual mentions an EMI PCB for Leonardo.
(electromechanical interference?)
In the Schachcomputer.Info-Wiki there's a different reason described:
"Leonardo has only 7 address lines, but the Sparc module requires 8".
Source (in German):
https://www.schach-computer.info/wik...p/Saitek_Sparc
I don't know if this is true ...