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[sigrok-dumps.git] / onewire / ds2408 / README
1 -------------------------------------------------------------------------------
2 Maxim DS2408 1-Wire 8-Channel Addressable Switch
3 -------------------------------------------------------------------------------
4
5 This is a set of example captures of the 1-Wire traffic from a Maxim Integrated
6 (previously Dallas Semiconductor) DS2408 1-Wire Addressable Switch.
7
8 Details:
9 https://datasheets.maximintegrated.com/en/ds/DS2408.pdf
10
11
12 Logic analyzer setup
13 --------------------
14
15 The waveform data was acquired using Rigol DS1074Z oscilloscope.
16
17 Because of the currently unresolved libsigrok bug #1364 it can't be acquired
18 directly using rigol-ds, so it was obtained using external tool and then
19 loaded into PulseView with "Import Raw analog data without header".
20
21 This method is described here:
22 https://skyboo.net/2019/03/using-rigol-ds1074z-oscilloscope-under-linux-and-pulseview/
23
24
25 disable-test-mode.sr
26 --------------------
27
28 This is the special "Disable Test Mode" command which should be issued on the
29 power-on, for reference read "Power-up timing", page 38 of the datasheet.
30
31
32 channel-access-write.sr
33 -----------------------
34
35 A successful command for setting PIO outputs (channel access write).
36
37
38 channel-access-write-fail.sr
39 ----------------------------
40
41 Same command as above but the device is responding with 'Fail New State' (0xff)
42 which informs about the error.
43
44
45 read-pio-registers.sr
46 ---------------------
47
48 A function for reading device registers (where a target address is given).
49 In this example the address 0x89 is read (PIO output-latch state register).