Question
STM32H723 with SDMMC UHS-I voltage switching
During the initialization of STM32 UHS-I, it has an IO output of 3.3V. After initialization, it outputs at 1.8V. However, I noticed that the external voltage switch transceiver is powered at 1.8V on the host side. I'm afraid it might burn out the external voltage switch transceiver. Before initializing the SD card, can the SDMMC internally switch to a 1.8V control signal and directly input it to the external voltage switch transceiver? I noticed that the voltage switch transceiver A side recommended in <RM0433> is also powered at a fixed 1.8V. Is there another way to use the SDMMC