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** [tickets:#374] How to add a new JTAG driver support in openocd **
**Status:** new
**Milestone:** 0.10.0
**Labels:** openocd
**Created:** Thu Dec 08, 2022 01:30 PM UTC by Ashi Gupta
**Last Updated:** Thu Dec 08, 2022 01:30 PM UTC
**Owner:** OpenOCD-Gerrit
Hello,
I want to add support for a new custom JTAG driver in openocd. I have created
my driver DLL that i have interfaced with openocd and create a new driver .c
file (similar to jlink.c but with my driver APIs for JTAG operation). Below are
the queries i have:
1. Is there any documentation available that explains how to create driver file
in openocd ? I am referring jlink.c but need some more clarity on what is the
JTAG data sequence and API format needed in driver to get it working with
openocd ?
2. I have multiple DAPs in my system in daisy chain. How to manage this with
openocd ? Do i have to manage DAP selection in my driver or can provide
configuration details in cfg file ? Any example for cfg file to follow ?
Thanks for the help.
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