From: Uwe Hermann <redacted>
Date: Sun, 30 Jun 2019 14:15:19 +0000 (+0200)
Subject: spi_mode: cmds: Add a small README.
X-Git-Url: https://sigrok.org/gitweb/?p=sigrok-dumps.git;a=commitdiff_plain;h=79002a419096747ea465b608c5caa3c1178e4944;hp=053a4793e242dc6b1cc181869092dd76166a56a1

spi_mode: cmds: Add a small README.
---

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".