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ftdi swd: disable SWD output pin during input

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* Disables the data output pin while SWD is reading, so that a simple FTDI
   SWD interface can be made by connecting TCK to SWD_CLK and TDI+TDO directly
   to SWDIO. Enabled by setting SWDIO_OE to 0.

Change-Id: I7d3b71cf3f4eea163cb320aff69ed95d219190bd
Signed-off-by: Patrick Stewart <patstew@gmail.com>
Signed-off-by: Roger Lendenmann <roger.lendenmann@intel.com>
Reviewed-on: http://openocd.zylin.com/2274
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tested-by: jenkins
This commit is contained in:
Patrick Stewart
2014-08-27 17:17:27 +01:00
committed by Paul Fertser
parent ab25205bbf
commit 1003bc7be7
4 changed files with 130 additions and 2 deletions
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tcl/board/nordic_nrf52_ftx232.cfg
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#
# nordic module NRF52 (nRF52832/52840) attached to an adafruit ft232h module
# or any FT232H/FT2232H/FT4232H based board/module
#
source [find interface/ftdi/ft232h-module-swd.cfg]
#source [find interface/ftdi/minimodule-swd.cfg]
transport select swd
source [find target/nrf52.cfg]