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target/icepick.cfg: Add support for Test TAPs in ICEPick C 15/5715/2
authorEdward Fewell <efewell@ti.com>
Wed, 3 Jun 2020 19:55:07 +0000 (14:55 -0500)
committerAntonio Borneo <borneo.antonio@gmail.com>
Sun, 14 Jun 2020 13:25:07 +0000 (14:25 +0100)
commit11116ef6ad875055a43cf9af1f228991349f2ba1
tree382d461e5bf2c2dc1a6f6adcfdd5cf7ebf2fcadatree | snapshot
parentb7d41ef96aaf371e71cb58f5fa7104f4a201ea27commit | diff
target/icepick.cfg: Add support for Test TAPs in ICEPick C

In addition to the debug TAPs, the ICEPick C also supports
a bank of Test TAPs (limited functionality intended for
non-debuggable targets). Added support for Test TAPs to
the icepick_c_tapenable routine. Port numbers of 0 to 15
will continue to be handled as a debug TAP number. Test
TAPs will be port numbers of 16 to 31.

This functionality will be needed for doing a flash
mass erase on CC26xx/CC13xx targets. It is possible
for user application to block even adding the Cortex M
TAP to the scan chain, so the only way to unbrick the
target and erase the flash is using a component on a
test TAP of the device's ICEPick router.

Change-Id: I0aa52a08d43a00cbd396efdeadd504fc31c98510
Signed-off-by: Edward Fewell <efewell@ti.com>
Reviewed-on: http://openocd.zylin.com/5715
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
tcl/target/icepick.cfg diff | blob | history
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