Hello,
I've been trying to dump the eMMC of a MCU2 for the past few days with no success. Pinout is described in this post. Following the recommendations, I've bought a 1-bit SD-card reader (Transcend SD-RDF5K), wired the signals through a voltage shifter and tried connecting the card reader to my PC. Nothing happens, and the logic analyzer shows that the eMMC clock signal is held low by the processor (I assume). I also tried holding the processor in reset - same result.
I'll appreciate some guidance on what to try for reading the eMMC in-circuit, already tested 5 different isolators, with push-pull and open drain outputs, and no luck.
Thanks
I've been trying to dump the eMMC of a MCU2 for the past few days with no success. Pinout is described in this post. Following the recommendations, I've bought a 1-bit SD-card reader (Transcend SD-RDF5K), wired the signals through a voltage shifter and tried connecting the card reader to my PC. Nothing happens, and the logic analyzer shows that the eMMC clock signal is held low by the processor (I assume). I also tried holding the processor in reset - same result.
I'll appreciate some guidance on what to try for reading the eMMC in-circuit, already tested 5 different isolators, with push-pull and open drain outputs, and no luck.
Thanks
