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- # SPDX-License-Identifier: GPL-2.0-or-later
- # 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
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