Loto OSCxxx series
| Status | planned |
|---|---|
| Channels | 2 analog (all models) + trigger |
| Samplerate | 50-200 MSa/s (by channel in dual channel) |
| Samplerate (eq. time) | 0.2-1 GSa/s (dual channel combined or single channel) |
| Analog bandwidth | 20-50 MHz (depending on model) |
| Vertical resolution | 8bits |
| Triggers | edge, pulse width, slope, video, alternate |
| Input impedance | 1MΩ‖25pF±5pF |
| Memory | 64Kpts (by channel, 128K total) |
| Connectivity | USB host and device |
| Features | math: + / — / x / FFT / Digital decoder |
| Website | bbs.lotoins.com |
The Loto OSC series are ... digital storage oscilloscopes.
Devices
| Model | Bandwidth (MHz) | Sample Rate (MS/s by ch) | USB VID/PID |
|---|---|---|---|
| Loto OSC2002 | 50 | 200 | 0x8312:0x8801 |
| Loto OSC802 | 25 | 80 | 0x8312:0x8312 |
| Loto OSC482 | 20 | 50 | 0x8102:0x8102 |
| Loto BM102 | 20 | 50 | 0x8102:0x8102 |
| 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 | 0x00 | 0x00 | 1 byte | Set Channel 1 and Channel 2 voltage selector. 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).
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