28 lines
1.1 KiB
INI
28 lines
1.1 KiB
INI
# isodebug v1
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# 5 kV isolated JTAG/SWD + UART adapter by Unjo AB
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adapter driver ftdi
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ftdi_vid_pid 0x22b7 0x150d
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ftdi_layout_init 0x0ff8 0xfffb
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ftdi_layout_signal LED -ndata 0x0100
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ftdi_layout_signal nTRST -data 0x0200
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ftdi_layout_signal nSRST -noe 0x0400
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ftdi_layout_signal SWDIO_OE -data 0x0008
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# Mode signals, either of these needs to be high to drive the JTAG/SWD pins.
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# The power-on state is low for both signals but the init setting above sets
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# JTAG_EN high.
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ftdi_layout_signal SWD_EN -data 0x1000
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ftdi_layout_signal JTAG_EN -data 0x0800
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# In SWD mode, the JTAG_EN signal doubles as SWO_EN_N which switches the
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# second FTDI channel UART RxD to the SWO pin instead of the separate RxD
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# pin. Note that the default init state has this pin high so when OpenOCD
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# starts in SWD mode, SWO is by default disabled. To enable SWO tracing,
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# issue the command 'ftdi_set_signal SWO_EN 1' where tracing is configured.
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# To switch back to using the separate UART, SWO_EN needs to be disabled
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# before exiting OpenOCD, or the adapter replugged.
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ftdi_layout_signal SWO_EN -nalias JTAG_EN
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