This is not technically SPI as such (just a sync/clocked protocol).
It's a custom DAC protocol with SCLK, SDIN, CS#, CLR#, and LDAC# pins.
--- /dev/null
+-------------------------------------------------------------------------------
+Analog Devices AD5626
+-------------------------------------------------------------------------------
+
+This is a set of example captures of an Analog Devices AD5626 12-bit nanoDAC.
+
+Details:
+https://www.analog.com/media/en/technical-documentation/data-sheets/AD5626.pdf
+
+
+Logic analyzer setup
+--------------------
+
+The logic analyzer used was ADALM2000 (at 5MHz):
+
+ Probe AD5626
+ ------------------
+ 0 SCLK
+ 1 SDIN
+ 2 CS#
+
+
+Probing
+-------
+
+The sigrok command line used was:
+
+ sigrok-cli -i - -I binary:numchannels=16:samplerate=5mhz -C 0-2 -o <file>
+
+
+ad5626_write_dac.sr
+-------------------
+
+m2kcli digital auto -c buffer_size=10000 nb_samples=5000000 format=binary | sigrok-cli -i - -I binary:numchannels=16:samplerate=5mhz -o ad5626_write_dac.sr -C 0-2
+++ /dev/null
--------------------------------------------------------------------------------
-Analog Devices AD5626
--------------------------------------------------------------------------------
-
-This is a set of example captures of an Analog Devices AD5626 12-bit nanoDAC.
-
-Details:
-https://www.analog.com/media/en/technical-documentation/data-sheets/AD5626.pdf
-
-
-Logic analyzer setup
---------------------
-
-The logic analyzer used was ADALM2000 (at 5MHz):
-
- Probe AD5626
- ------------------
- 0 SCLK
- 1 SDIN
- 2 CS#
-
-
-Probing
--------
-
-The sigrok command line used was:
-
- sigrok-cli -i - -I binary:numchannels=16:samplerate=5mhz -C 0-2 -o <file>
-
-
-ad5626_write_dac.sr
--------------------
-
-m2kcli digital auto -c buffer_size=10000 nb_samples=5000000 format=binary | sigrok-cli -i - -I binary:numchannels=16:samplerate=5mhz -o ad5626_write_dac.sr -C 0-2