The current cJTAG to JTAG switching commands for TI chips are not
particularly reliable, especially on chips with accurate timing.
On a Raspberry Pi the existing sequence has (depending on cabling and
chip) a ~50% chance of working, on a much better-behaved FT2232H
it doesn't manage to enable full JTAG at all.
This change runs a bunch of test-idle cycles before actually attempting
to switch to full JTAG. This makes the switch reliable even at high
clock speeds (>100kHz) and from precise sources like the FT2232H.
Change-Id: I9293e884bf3e9606d529756ae4483b844d3c39db
Reported-by: Phil Wiggum <p1mail2015@mail.com>
Fixes: https://sourceforge.net/p/openocd/tickets/375/
Signed-off-by: Lorenz Brun <lorenz@brun.one>
Reviewed-on: https://review.openocd.org/c/openocd/+/7419
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
For historical reasons, no license information was added to the
tcl files. This makes trivial adding the SPDX tag through script:
fgrep -rL SPDX tcl/ target| while read a;do \
sed -i '1{i# SPDX-License-Identifier: GPL-2.0-or-later\n
}' $a;done
With no specific license information from the author, let's extend
the OpenOCD project license GPL-2.0-or-later to the files.
Change-Id: I7b2610300b24cccd07bfa6fb5f1266970d5d3a1b
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7027
Tested-by: jenkins
Change-Id: Ib452435b13c3cb8d14453d983151936238b9601d
Signed-off-by: Marc Schink <dev@zapb.de>
Reviewed-on: http://openocd.zylin.com/5419
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Added support for the Cortex-M3 based TI low power RF SoC CC2538 and
the CC26xx family.
These chips need a start sequence for switching from cJTAG to JTAG
before being used with OpenOCD, this is done in the tcl proc
ti_cjtag_to_4pin_jtag in the ti-cjtag.cfg config.
The configs for CC2538 and CC26xx run the start sequence on post-reset
event and set the ICEPick IDCODE in the data register for OpenOCD to
read, this is done so that every time OpenOCD resets the device, it
will enable JTAG.
Change-Id: I7db620211c0e7e03fad59d24fe31d23a9cdcfedc
Signed-off-by: Jacob Palsson <jaaacke@gmail.com>
Reviewed-on: http://openocd.zylin.com/2232
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Lorenz Brun
Antonio Borneo
Marc Schink
Jacob Palsson