# ConnectME as JTAG controller

**URL:** <https://forums.digi.com/t/connectme-as-jtag-controller/4216>\
**Category:** NET+OS\
**Tags:** jtag\
**Created:** [May 11, 2010, 4:40pm UTC](https://forums.digi.com/t/connectme-as-jtag-controller/4216 "2010-05-11T16:40:26Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Andrey](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@Andrey](https://forums.digi.com/u/Andrey)\
**Post date:** [May 11, 2010, 4:40pm UTC](https://forums.digi.com/t/connectme-as-jtag-controller/4216/1 "2010-05-11T16:40:26Z")

</div>

I wonder if someone is already implemented JTAG controller based on ConnectME.  
The idea is to allocate 4 of GPIO lines for general JTAG interface to

1. control external FPGA-based devices by implementing boundary scan primitives in them (like BSCAN in xilinx)
2. test data taking at the rates of several hundred KBytes/s
3. configuring FPGA devices using STAPL or SVF/XSVF files.

I have developed this functionality couple of years ago on ColdFire M5235BCC, but the ConnectME 9210 looks much better for that, it is 3 times smaller and 4 times cheaper.