Difference between revisions of "Sysclk LWLA1034"
Jump to navigation
Jump to search
(Begin documentation of reverse engineering effort) |
(Fill in SRAM details) |
||
| Line 8: | Line 8: | ||
* Altera Cyclone II FPGA | * Altera Cyclone II FPGA | ||
* Cypress CY7C68013A-56 (FX2) USB interface chip | * Cypress CY7C68013A-56 (FX2) USB interface chip | ||
* SRAM | * Cypress 256k×36 SRAM (likely a [http://www.cypress.com/?mpn=CY7C1361C-133AXC CY7C1361C-133AXC] or similar) | ||
== Photos == | == Photos == | ||
Revision as of 17:54, 22 December 2013
The Sysclk LWLA1034 is a USB-based, 34-channel logic analyzer with up to 125MHz sampling rate.
See Sysclk LWLA1034/Info for more details (such as lsusb -vvv output) about the device.
Hardware
- Altera Cyclone II FPGA
- Cypress CY7C68013A-56 (FX2) USB interface chip
- Cypress 256k×36 SRAM (likely a CY7C1361C-133AXC or similar)
Photos
PCB top view
PCB bottom view
PCB close-up
FX2
Chip with marking removed (SRAM?)
Software
Firmware
- The FX2 firmware appears to be loaded from an EEPROM on the board, so that the final USB device descriptor is immediately available on power-up.
- End point 4 appears to be used exclusively for loading a new bitstream into the FPGA.
- End point 2 is apparently used for sending commands to the FPGA firmware, with responses (if any) coming in from end point 6.
Reverse engineering of the vendor protocol is currently in progress. See Sysclk LWLA1034/Protocol for a documentation of the findings gathered so far.