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Original question:
MSP-EXP430FR5994: Getting this LaunchPad running in SD Card Mode
Had to work on other things for a while. Did enable R5 & R7 (equivalents) via P4.0 & P7.2 internal pull-up resistor enable - that was the problem! The LP is now writing to small MicroSD cards:256 MB & 1 GB FAT16 successfully, but can't write to 32 or 64 GB cards which would be FAT32. The code looks like it supports both FAT sizes. Is there anything else I need to do to work with these larger cards?
// enable P4.0 internal pull-up resistor
P4REN = 0x01;
// enable P7.2 internal pull-up resistor
P7REN = 0x04;
I will need these larger sizes eventually, if not in the current SBC design. The 432 LP & BOOSTXL+SHARP does support 32 & 64 GB MicroSD cards.
Digi-Key does stock some of these older, smaller MicroSD cards.
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