1 # SPDX-License-Identifier: GPL-2.0-or-later
4 # Connect TDI to SWDIO via a suitable series resistor (220-470 Ohm or
5 # so depending on the drive capability of the target and adapter);
6 # connect TDO directly to SWDIO.
8 # You also need to have reliable GND connection between the target and
9 # adapter. Vref of the adapter should be supplied with a voltage equal
10 # to the target's (preferably connect it to Vcc). You can also
11 # optionally connect nSRST. Leave everything else unconnected.
15 # 1 - Vref ----------------- Vcc
17 # 4 - GND ----------------- GND
18 # 5 - TDI ---/\470 Ohm/\--- SWDIO
20 # 9 - TCK ----------------- SWCLK
22 # 13 - TDO ----------------- SWDIO
23 # 15 - nSRST - - - - - - - - - nRESET
28 ftdi layout_signal SWD_EN -data 0