3 ms·
Given that the top bit of every 16bit word looks to be set, I'm not sure that it does work.
by monocasa 3y ago
Given that the top bit of every 16bit word looks to be set, I'm not sure that it does work.
- Boardbricker34 3y agoThis would work. And I have done this. You need a jtag port and the flash needs to be directly connected to the SOC/MCU/FPGA. This is similar to how EJTAG works but without ejtag, you need to specify the pins themselves. As long as all 16 data and addr pins are connected, this is possible.
- monocasa 3y agoI know it can be done. NOR boot flashes like this were typically written and verified via boundary scan at manufacturing time. That's probably how this flash was initially written. I question whether you successfully performed that operation.