Template:FAQ/Questions/netmicroSD-vx not working

Why doesn't the ethernet connection on my netmicroSD-vx work?
Background:


 * When you receive a netmicro-SD expansion board, it may seem like the Ethernet port might be faulty. If you try to tftp from within U-Boot, the attempt may time out. The same CPU can load over tftp without trouble from a NetCF-VX.


 * Also, if you boot the processor into Linux, the Ethernet device may not appear.

Answer:


 * The netmicro-SD board uses the SMC9117 ethernet controller chip. The netCF-vx expansion board uses the SMC91C111.
 * These two ethernet controller chips are not compatible with each other and require a different ethernet driver to be compiled into u-boot.
 * You need to ensure that the smc911x driver (as opposed to smc91x) is compiled and loaded in order for the netmicroSD-vx card to work.