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TWR-K70 SDHC SD Card

Question asked by Peter Wojciechowski on Dec 10, 2014
Latest reply on Jan 6, 2015 by Peter Wojciechowski

Hello, I am attempting to access an SD Card on my TWR-K70. I am using CodeWarriors Component manager to setup the SDHC at 400KHz and 4 bit data mode. I have confirmed the correct PTE pins are selected for the clock/cmd and data lines per the TWR manual. When the card is inserted I am not seeing an OnCardInserted event occur. I've attempted to call DetectCards function but it exits during the VoltageValidation call, presumably failing to see the card. Could anyone provides pointers what to try next? I only need to transfer data blocks from the card, nothing too fancy.

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