STM32 SD/MMC SPI problem

Ok that describes the amount of time, but really doesn't convey any detail that might be used by others to advance the understanding of the problem. Going to be hard to generate any interest in your situation. Want people to interact? Provide some compelling level of detail.

What specific tests did you perform during this time? What were your observations with respect to pins and responses from the card? Did you look at the signals with a logic analyzer?

Ok that describes the amount of time, but really doesn't convey any detail that might be used by others to advance the understanding of the problem. Going to be hard to generate any interest in your situation. Want people to interact? Provide some compelling level of detail.

What specific tests did you perform during this time? What were your observations with respect to pins and responses from the card? Did you look at the signals with a logic analyzer?