Difference between revisions of "Sysclk LWLA1034"
Jump to navigation
Jump to search
(Fill in SRAM details) |
m (Identify chip3 as SRAM) |
||
| Line 17: | Line 17: | ||
File:Sysclk lwla1034 pcb closeup.jpg|PCB close-up | File:Sysclk lwla1034 pcb closeup.jpg|PCB close-up | ||
File:Sysclk lwla1034 chip2.jpg|FX2 | File:Sysclk lwla1034 chip2.jpg|FX2 | ||
File:Sysclk lwla1034 chip3 removed marking.jpg| | File:Sysclk lwla1034 chip3 removed marking.jpg|SRAM (marking removed) | ||
</gallery> | </gallery> | ||
Revision as of 16:56, 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
SRAM (marking removed)
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.