FRDM-K64F board has SDHC socket already installed and wired to the SPI MCU pins. Also much promising MCUXpresso SDK has SDHC component module and board.h has macro definitions for SDHC resources. Naturally I was trying to find any example of using this module but so far failed. Any example can be found of using this provided module APIs for the microSD card operations? Logger example? or part of any demo ?
Solved! Go to Solution.
Correction: SDHC is not wired to SPI but 4 bit SDHC interface to MCU pins.
Also the FRDM-K64F SDK provided SDHC module is not the one described in MCUXpresso SDK reference manual therefore the examples provided in SDK API for Secure SD card don't work here.