Change in osmo-ccid-firmware[master]: remove SWO pin initialisation

Kévin Redon gerrit-no-reply at
Wed Apr 17 09:34:06 UTC 2019

Hello Jenkins Builder, 

I'd like you to reexamine a change. Please visit

to look at the new patch set (#5).

Change subject: remove SWO pin initialisation

remove SWO pin initialisation

using the SWO signal on TX has the advantage of being able to
have printf debug while still using SERCOM7 in ISO7816 mode for
the SIM card, but it has two drawbacks:
- SWO outputs data only if a debug session is ongoing (e.g. a SWD
debugger is connected). this saves output processing when no SWD
is connected, but it is not possible to force output without
having an SWD debugger connect (confirmed by Microchip help),
which is not convenient for simple UART debugging.
- no input is possible (SWO can only output).

Thus instead we will still use SERCOM7 for UART debug, allowing
commands to be input.
SERCOM7 should only be used for UART debug when no card in present
in SIM7.
This check in not yet implemented.

Change-Id: I199d6e356129526e65d5d1075a264eb35904d099
M sysmoOCTSIM/driver_init.c
1 file changed, 0 insertions(+), 47 deletions(-)

  git pull ssh:// refs/changes/74/13674/5
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Gerrit-Project: osmo-ccid-firmware
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I199d6e356129526e65d5d1075a264eb35904d099
Gerrit-Change-Number: 13674
Gerrit-PatchSet: 5
Gerrit-Owner: Kévin Redon <kredon at>
Gerrit-Reviewer: Jenkins Builder (1000002)
Gerrit-CC: Harald Welte <laforge at>
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