DreamSourceLab DSLogic Basic
 | |
| Status | supported |
|---|---|
| Source code | dreamsourcelab-dslogic |
| Channels | 1-16 |
| Samplerate | 100MHz(3ch), 100MHz(6ch), 50MHz(9ch), 32MHz(12ch), 16MHz(16ch) |
| Samplerate (state) | 30MHz (?) or 50MHz (?) |
| Triggers | high, low, rising, falling, edge, multi-stage triggers |
| Min/max voltage | -0.6V — 6V |
| Threshold voltage | configurable: 0-5V (0.1V increments) |
| Memory | None |
| Compression | yes |
| Website | dreamsourcelab.com |
The DreamSourceLab DSLogic Basic is a 16-channel USB-based logic analyzer, with sampling rates up to 400MHz (when using only 4 channels).
See DreamSourceLab DSLogic Basic/Info for more details (such as lsusb -v output) about the device.
Hardware
- FPGA: Xilinx Spartan-6 XC6SLX9
- USB: Cypress CY7C68013A (FX2)
- I²C EEPROM: ST 4128BRP
- Crystal: 24MHz
Photos
Device:
Cables:
Probe cable circuit
Firmware
See DreamSourceLab DSLogic#Firmware.
Note: The FX2 firmware is loaded at powerup from the I²C EEPROM on the PCB.
EEPROM layout
The device has an I²C EEPROM with the following layout:
c2 0e 2a 21 00 00 00 04 XX XX XX XX XX XX .. ..
Description:
| Bytes | Description |
|---|---|
| 0 | 0xc2: FX2 "c2 load" mode, i.e. VID/PID/DID are loaded from EEPROM as the firmware. |
| 1-2 | 0x2a0e: USB vendor ID (VID before firmware renumerate). |
| 3-4 | 0x0021: USB product ID (PID before firmware renumerate). |
| 5-6 | 0x0000: USB device ID (DID before firmware renumerate). |
| 7 | 0x04: FX2 configuration byte (see FX2 TRM for details). |
| 8 - 6778 | Firmware (6771 bytes, sha1sum: 79784d038800e4b4757eba15de33813ac76819945f1b39239df6cf0a096dce55) |
| Rest | Unknown, probably all-0xff. |