projects / sigrok-dumps.git / blame
| Commit | Line | Data |
|---|---|---|
| 3ccaa316 MB |
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). |