Reply To: OSSC blank LCD, no output

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July 27, 2024 at 8:38 PM #62630
Morpheus_79
Participant

    Was it this project? https://hackaday.io/project/194894-usbblaster-based-on-ch552g

    Yes… exactly this one. It is a fun project… but because of its closed source firmware its timing issues can’t be fixed. At least Doug Brown fixed them for other commonly available CH552G-based USB-Blasters – like this one:

    https://www.aliexpress.us/item/3256805938471895.html

    … with his own firmware version:

    https://github.com/dougg3/CH55x-USB-Blaster/

    It probably won’t work with the Hackaday USB-Blaster project, since it most likely uses different I/O pins for the communication… but at least the Hackaday version has the oportunity to populate the PCB with level shifters to support some more FPGAs with even different voltages. An advantage the Aliexpress version doesn’t have.

    So the best “cheap” version without any issues seems to be the terasic USB-Blaster for around $69 (after the official one for $300). Any other/cheaper version seems to have some problems in one way or another.

    • This reply was modified 1 year, 7 months ago by Morpheus_79.