based on the schematic: STM32F4DISCOVERY - Discovery kit with STM32F407VG MCU * New order code STM32F407G-DISC1 (replaces STM32F4DISCOVERY) - STMicroelectronics- MCU have a VBAT- the VBAT is not connected to the connectors.
Abin, Thanks for your sharing. The schematic is no issue, even we can config internal pull-up/pull-down without external resistor to respect the SDIO specification.I don't find the right MCU pinout for SDIO and the connection. But I think it's not ...
Abin,Based on your reply, you want to use L476RG and F446RE to operate SDcard. But the Nucleo boards don't have SDcard slot for your applicatin.So could you tell me your hardware connection with Arduino or Morpho connectors? which interface do you us...
