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Diffstat (limited to 'sdcard/spi_mode/write_single_block/README')
| -rw-r--r-- | sdcard/spi_mode/write_single_block/README | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/sdcard/spi_mode/write_single_block/README b/sdcard/spi_mode/write_single_block/README new file mode 100644 index 0000000..391f73f --- /dev/null +++ b/sdcard/spi_mode/write_single_block/README @@ -0,0 +1,32 @@ +------------------------------------------------------------------------------- +SD card / SPI-mode / CMD24 (write single block) +------------------------------------------------------------------------------- + +This set of example captures demonstrates CMD24 (write single block) +commands including their data phase. + +Pierre Poulain provided these files in bug #1365 as public domain. + + +Logic analyzer setup +-------------------- + + Probe SD card + ---------------- + 0 CS# + 1 MOSI + 2 MISO + 3 CLK / SCK + + +Data +---- + +File data_transfer_start_snippet.sr was recorded in a live setup, and +contains the start of a write command -- but does not complete it which +is why the decoder won't annotate the operation. + +File data_transfer_complete_simulated.sr contains a complete CMD24 start +as well as the communication of the R1 response, the data start token, +the payload data, and the data response. This capture was created by a +simulation. |