1 # SPDX-License-Identifier: GPL-2.0-or-later
4 # Luminary Micro Stellaris Evaluation Kits
6 # http://www.luminarymicro.com/products/evaluation_kits.html
8 # There are a number of evaluation kits for Stellaris Cortex-M3 chips.
9 # Currently they all bundle ftdi based debug support. When that is
10 # used (instead of an external adapter), use this config file in one
13 # - Eval board debug ... debug of the Stellaris chip via port A.
15 # - Other board debug ... same thing, but the board acts as a debug
16 # adapter for another board (using a standard ARM JTAG connector).
17 # The Stellaris chip stays in reset.
19 # Those support both JTAG and SWD. SWD is an ARM-only two-wire debug
20 # protocol; in 2009, OpenOCD does not support SWD.
22 # Port B of the ftdi chip is normally used as a serial link to the
23 # Stellaris chip. On most boards (but not older LM3S811 eval boards),
24 # when SWD is used Port B may instead be used to read low-bandwidth
25 # "SWO trace" data, including so-called "printf style" output from
26 # firmware via the ITM module as well as profile data.
30 ftdi device_desc "Stellaris Evaluation Board"
31 ftdi vid_pid 0x0403 0xbcd9
33 ftdi layout_init 0x00a8 0x00eb
34 ftdi layout_signal nSRST -noe 0x0020
35 ftdi layout_signal SWD_EN -ndata 0x0080
36 ftdi layout_signal SWDIO_OE -data 0x0008