DreamSourceLab DSLogic U2Basic

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DreamSourceLab DSLogic U2Basic
Status planned
Source code dreamsourcelab-dslogic
Channels 1-16
Samplerate Stream mode: 100MHz(3ch), 50MHz(6ch), 25MHz(12ch), 20MHz(16ch)
Website dreamsourcelab.com

The DreamSourceLab DSLogic U2Basic is a 16-channel USB-based logic analyzer, with sampling rates up to 400MHz (when using only 4 channels).

See DreamSourceLab DSLogic U2Basic/Info for more details (such as lsusb -v output) about the device.


  • FPGA: Xilinx Spartan-6 XC6SLX9
  • USB: Cypress CY7C68013A (FX2)
  • I²C EEPROM: ST 4128BRP
  • SDRAM: Winbond W9864G6KH-6
  • Crystal: 24MHz



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 29 00 00 00 04 XX XX XX XX XX XX .. ..


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 0x0029: 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 - 6977 Firmware (6970 bytes, sha1sum: 47975f295711cf0208bbd963bbfeaf5b36e87b8724cad1e67c0de1a86065b389)
Rest Unknown, probably all-0xff.