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| author | Uwe Hermann <uwe@hermann-uwe.de> | 2019-06-30 16:15:19 +0200 |
|---|---|---|
| committer | Uwe Hermann <uwe@hermann-uwe.de> | 2019-06-30 16:43:30 +0200 |
| commit | 79002a419096747ea465b608c5caa3c1178e4944 (patch) | |
| tree | e0de5497fa4c588eef2072b50650d216e7d290a2 /sdcard/spi_mode | |
| parent | 053a4793e242dc6b1cc181869092dd76166a56a1 (diff) | |
| download | sigrok-dumps-79002a419096747ea465b608c5caa3c1178e4944.tar.gz sigrok-dumps-79002a419096747ea465b608c5caa3c1178e4944.zip | |
spi_mode: cmds: Add a small README.
Diffstat (limited to 'sdcard/spi_mode')
| -rw-r--r-- | sdcard/spi_mode/cmds/README | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/sdcard/spi_mode/cmds/README b/sdcard/spi_mode/cmds/README new file mode 100644 index 0000000..4f10892 --- /dev/null +++ b/sdcard/spi_mode/cmds/README @@ -0,0 +1,25 @@ +------------------------------------------------------------------------------- +SD card / SPI-mode / Commands +------------------------------------------------------------------------------- + +This is a set of example captures of individual SD card commands in SPI-mode. + + +Logic analyzer setup +-------------------- + +The logic analyzer used was an FX2-based device (at 24MHz): + + Probe SD card + ------------------- + 0 MOSI + 1 MISO + 2 CLK + 3 CS# + + +cmd17.sr +-------- + +This file contains a CMD17 (READ_SINGLE_BLOCK) sequence, reading 512 bytes +from address 0x000f. The first few bytes of the data are "sigrok rocks". |