Salocinx has done some excellent SDBox-testing on A3000D/A4000D and found and fixed a bug in the V2-driver.
This fix:
https://github.com/niklasekstrom/ami...95fe8800dbba40
I have merged his fix (from upstream) into my fork as well:
https://github.com/jbilander/amiga-par-to-spi-adapter
The strength of Open Source right there...people contributing to the community with their time, knowledge and dedication.
Many thanks to Salocinx!
Also, a new Rev of the SDBox-Mini PCB is available, Revision 2B. Populating U4 now with 74AHCT1G126 (instead of 74LVC1G17) will make it possible to tri-state 74AHCT1G126 (MISO-line driver) with a 2.0mm jumper-shunt on JP1 during ICSP-flashing of the ATMega328P with updated firmware, and then just remove it again after flashing is done.