--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/notes.rst	Thu Oct 15 01:11:03 2020 +0200
@@ -0,0 +1,149 @@
+Probing
+=======
+
+Serial probe with dslogic in serialdata/
+
+read-sr: Decode the raw capture (34970-long-session.sr) and display the protocol
+
+  serialdata$ cat read-sr  | sh
+
+  00007553 [+0.01] >>> CHANNEL 	203
+  00007573 [+0.02] >>> DISPLAY 	MUX      OPEN
+  00007581 [+0.01] >>> CHANNEL 	203
+  00007589 [+0.01] <<< KNOB		Knob left
+  00007640 [+0.05] <<< KNOB		Knob left
+  00007645 [+0.01] >>> DISPLAY 	MUX      OPEN
+  00007654 [+0.01] >>> CHANNEL 	202
+  00007674 [+0.02] >>> DISPLAY 	MUX      OPEN
+  00007682 [+0.01] >>> CHANNEL 	202
+  00007697 [+0.02] <<< KNOB		Knob left
+  00007745 [+0.05] <<< KNOB		Knob left
+  00007750 [+0.01] >>> DISPLAY 	MUX      OPEN
+  00007759 [+0.01] >>> CHANNEL 	201
+
+read-sd-continuous: Should read continuously the data stream from the dslogic...
+
+
+Protocol
+========
+
+> = cpu -> dsp
+< = dsp -> cpu
+
+0x80 -> right
+0x81 -> left
+
+shitf + key -> bit 5
+key release -> bit 6
+
+End of shift packet:
+>66 <99 >01 <00 >01 <00 >0E <00 >55
+
+
+init    -> <33 >CC <02 >00 <00 >00 <55
++ shift -> <33 >CC <02 >00 <FF >00 <0C >00 <55
++ scan  -> <33 >CC <02 >00 <FF >00 <03 >00 <55
+
+shutdown ->
+  cpu -> cmd 0x86 + 0x55 ad libidum
+  ie >66 <99 >86 <00 >55 >55 >55 ...
+
+commands:
+
+0x00 -> display text
+  >66 <99 >00 <00 >nn <00 >c1 <00 ... >cn <00 >55
+0x0A -> flags
+  >66 <99 >0A <00 >04 <00 >f0 <00 >f1 <00 >f2 <00 >f3 <00 >55
+0x0C -> display channels
+
+0x02 -> ???
+ >02 <?? >01 <??
+
+
+
+
+
+flags
+
+f1 b7 -> alarm frame
+F4 b1 -> SCAN
+
+
+once + scan -> 0C > 00 > 20 > 20
+
+view + last + min + max + avg ->
+  0A: 0C / 80 / 07 / 08
+  08: 01 / 0F
+
+
+view + last + min + max + avg*
+  0A: 0C / 80 / 07 / 08
+  09: 01 / 0F
+
+view + last + min + max* + avg
+  08: 01 0F
+  09: 01 10
+
+
+view + last + min* + max + avg (DATE)
+  08: 01 / 10
+  09: 01 / 11
+view + last + min* + max + avg (DIN)
+  08: 01 / 11
+  09: 01 / 11
+
+last* + min + max + avg (DIN)
+ DIN
+  08 01 12
+  09 01 12
+ DATE
+  08 01 12
+  09 01 12
+
+08 -> low bright
+09 -> hi bright
+
+sortie du mode "view" on a a la suite:
+  09 01 12
+  09 01 11
+  09 01 10
+  09 01 0F
+
+on a aussi un paquet 02 01 0C (clear?)
+
+
+
+Mode VIEW pour DIN
+==================
+
+quand on rentre en mode "view":
+
+- 02 01 99 (?)
+- 0A / 0C 00 00 00
+- 0A / 0C 00 00 08
+- text  READINGS
+
+puis View (Readings)
+
+- 0A / 0C 00 00 08
+- channel
+- 0A / 0C 00 00 08
+- 0A / 0C 00 00 08
+- 09 / 01 12 (LAST en hi bright)
+- 0A / 0C 80 07 08
+- 08 / 01 11
+- 08 / 01 10
+- 08 / 01 0F
+- text (value)
+
+puis ->
+
+- 08 / 01 12
+- 09 / 01 12
+- textes
+
+
+PCB
+===
+
+18.3 x 7.8