Hi
We have some custom hardware which we’re commissioning.
It contains a MMC Device which we’re trying to get working with a Microcontroller.
Currently operation fails at the MMC initialisation stage.
I wonder if you could help us, please?
The MMC device is a Swissbit SFEM032GB2ED1TO-A-5E-111-STD
(which advertises itself as JEDEC e·MMC 5.1 compliant)
The Microcontroller is a STM32F407IGT
(which says “an SD/SDIO/MMC host interface is available, that supports MultiMediaCard System Specification Version 4.2 in three different databus modes: 1-bit (default), 4-bit and 8-bit.)
Please can you tell us whether this combination of Microcontroller and MMC Device should work together in principle, or whether we’ve made a major mistake (in which case any recommendations in terms of a different MMC Device to try [ideally pin compatible])?
Many thanks in advance
Dave
