View source for XMOS XTAG-2

{{Infobox logic analyzer
| image            = [[File:Xmos xtag2.png|180px]]
| name             = XMOS XTAG-2
| status           = planned
| source_code_dir  = 
| channels         = ????
| samplerate       = 50MHz @ 2ch, 16MHz @ 7ch
| samplerate_state = ?
| triggers         = ?
| voltages         = ?
| threshold        = ?
| memory           = ?
| compression      = ?
| website          = [http://www.xmos.com/products/xkits/debug xmos.com]
}}

The '''XMOS XTAG-2''' is a USB based, ????-channel logic analyzer with up to 50MHz sampling rate.

The XTAG-2 is actually a debug/eval board for XMOS ICs, but it can be used as a logic analyzer with a [http://www.mail-archive.com/sigrok-devel@lists.sourceforge.net/msg00094.html firmware written by Henk Muller].

See [[XMOS XTAG-2/Info]] for more details (such as '''lsusb -vvv''' output) about the device.

== Hardware ==

The main chip is an XMOS XS1-L1 [https://www.xmos.com/en/download/public/XS1-L01A-LQ64-Datasheet%28X1135E%29.pdf XS1-L01A-LQ64 Datasheet].
In the above picture, the 7-pin header markings are barely unreadable, but that's the jtag port for the xmos chip. From right to left: TDO, TDI, TCK, TMS, TRST#, RST# and GND.

The secondary chip is an [http://ww1.microchip.com/downloads/en/DeviceDoc/3310.pdf SMSC HS Usb 2.0 transceiver].

== Photos ==

<gallery>
File:Xtag-2 front.png|<small>PCB, front</small>
File:Xtag-2 back.jpeg|<small>PCB, back</small>
</gallery>

== Protocol ==

TODO.

== Resources ==

* [http://github.xcore.com/repo_index/sw_logic_analyzer_readme.html XMOS project page of the logic analyzer firmware]
* [https://github.com/xcore/sw_logic_analyzer sw_logic_analyzer github repo]
* [https://www.xmos.com/download/public/XTAG-2-Quick-Start-Guide(1.1).pdf XTAG-2 quickstart guide]
* [https://www.xmos.com/download/public/XTAG-2-Hardware-Manual(1.0).pdf XTAG-2 hardware manual]
* [https://www.xmos.com/download/public/XTAG-2-Loader-%28Binary%29%280.02%29.xe XTAG-2 loader (binary)]
* [http://www.xmos.com/published/xtag-2-design-files XTAG-2 design files]

[[Category:Device]]
[[Category:Logic analyzer]]
[[Category:Planned]]