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tcl: Add interface config for isodebug isolated JTAG/SWD+UART 

Currently only used internally at Unjo.

Change-Id: I7786e95e1bd755a73156ecad5b6d7f6273d8ddef
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/5251
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
This commit is contained in:
Andreas Fritiofson 2019-06-28 15:45:23 +02:00 committed by Antonio Borneo
parent d91e19eb16
commit b4dc073881
1 changed files with 27 additions and 0 deletions
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27
tcl/interface/ftdi/isodebug.cfg Normal file
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# isodebug v1
# 5 kV isolated JTAG/SWD + UART adapter by Unjo AB
adapter driver ftdi
ftdi_vid_pid 0x22b7 0x150d
ftdi_layout_init 0x0ff8 0xfffb
ftdi_layout_signal LED -ndata 0x0100
ftdi_layout_signal nTRST -data 0x0200
ftdi_layout_signal nSRST -noe 0x0400
ftdi_layout_signal SWDIO_OE -data 0x0008
# Mode signals, either of these needs to be high to drive the JTAG/SWD pins.
# The power-on state is low for both signals but the init setting above sets
# JTAG_EN high.
ftdi_layout_signal SWD_EN -data 0x1000
ftdi_layout_signal JTAG_EN -data 0x0800
# In SWD mode, the JTAG_EN signal doubles as SWO_EN_N which switches the
# second FTDI channel UART RxD to the SWO pin instead of the separate RxD
# pin. Note that the default init state has this pin high so when OpenOCD
# starts in SWD mode, SWO is by default disabled. To enable SWO tracing,
# issue the command 'ftdi_set_signal SWO_EN 1' where tracing is configured.
# To switch back to using the separate UART, SWO_EN needs to be disabled
# before exiting OpenOCD, or the adapter replugged.
ftdi_layout_signal SWO_EN -nalias JTAG_EN