![]() If so, then placing the controller in BootROM mode by shorting a link or by invalidating the NAND during power-up should enable the controller to identify itself via USB, thus eliminating it and the USB interface as suspects. I'm wondering whether there are times when the NAND firmware becomes corrupt so that the controller remains busy. This can be achieved in several ways:ġ.Use host/go_isp.py script to reboot PS2303 from normal mode to BootROM (simplest, temporary)Ģ.Disrupt NAND probing at power up shorting some DATA lines with tweezers (temporary) fast USB 3.0 to FPGA bridge).Ī PS2303-based USB stick must be in BootROM mode to be able to load and run custom code. ![]() This project's goal is to turn PS2303-based USB flash drive into a cheap USB 3.0 development platform (i.e.
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