Loto OSCxxx series
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The Loto OSCxxx series are compact and portable digital storage oscilloscopes, produced by Rocktech.
Devices
| Model | Bandwidth (MHz) | Sample Rate (MS/s by ch) | USB VID/PID | Notes |
|---|---|---|---|---|
| Loto OSCH02 | 100 | 250 | 0x8312:0x8a2a | Rel. 2020 (250MSa just CH-A) |
| Loto OSC2002 | 50 | 200 | 0x8312:0x8801 | 2018-2019 edition |
| Loto OSCA02 | 35 | 100 | 0x8312:0x8a02 | |
| Loto OSC802 | 25 | 80 | 0x8312:0x8312 | |
| Loto OSC482 | 20 | 50 | 0x8102:0x8102 | |
| Loto BM102 | 20 | 50 | 0x8102:0x8102 | out of production |
| Loto OSCE02 | 50 | 200 | 0x8312:0x8101 |
|
Protocol
OSC802
Commands sent via Control Transfer to EP0. Samples buffer available on Bulk EP. List of commands (provisional):
| | |Request Type|Request|Value|Index|Data|Description| |0x80|0x33|0x00|0x00|1 byte|Start acquisition.| |0x80|0x50|0x00|0x00|1 byte|Check if acquisition buffer is ready. Write 0x21 in the data byte if ready.| |0x80|0x94|value|0x00|1 byte|Set sampling rate with value[0-3] and AC/DC for Channel 1 with value[4]. Rate values: 80MSa/s (B0000), 10MSa/s (B1000), 625KSa/s (B1100)
value[4] = 1 -> DC coupling, value[4] = 0 -> AC coupling| |0x80|0x22 0x23 0x24|value|0x00|1 byte|Set Channel 1 and Channel 2 voltage. Set AC/DC for Channel 2.| |0x80|0xE7|value|0x00|1 byte|Enable (value=1) or disable (value=0) hardware trigger on Channel 1.| |0x80|0xC5|value|0x00|1 byte|Set trigger slope up (value=1) or down (value=0).| |0x80|0x16|value|0x00|1 byte|Set trigger level (value=0-255).|