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SD card / SD mode / i.MX6
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This is a set of example captures of SD cards in "SD mode" (not SPI mode).

The cards were used in an eval board based on the Freescale i.MX6 Quad.

 - Working: Transcend 16GB micro SDHC
 - Failing: SanDisk 2GB class 2 SD card

Details:
http://wandboard.org/
http://boundarydevices.com/products/nitrogen6x-board-imx6-arm-cortex-a9-sbc/


Logic analyzer setup
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The logic analyzer used was a Saleae Logic16 (at 40MHz):

  Probe       SD card
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  0           CLK
  1           DAT0
  2           DAT1
  3           DAT2
  4           CMD
  5           DAT3