openocd/tcl/interface/beaglebone-swd-native.cfg
Steve Marple bd4bd54b60 drivers/am335xgpio: Add AM335x driver for bitbang support on BeagleBones
Change-Id: Iac1c9f3d380e2474c8b77407c89c2aad96fbf2ea
Signed-off-by: Steve Marple <stevemarple@googlemail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6941
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
2022-05-14 08:59:30 +00:00

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INI

# SPDX-License-Identifier: GPL-2.0-or-later
# BeagleBone native GPIO interface for SWD
#
# This is best used with a fast buffer but it is also suitable for a direct
# connection if the target voltage matches the host's IO voltage (typically
# 3.3V) and the cable is short.
#
# DO NOT APPLY VOLTAGE TO THE GPIO PINS UNTIL SYS_RESETN IS HIGH.
#
# Do not forget the GND connection.
adapter driver am335xgpio
# Transition delay calculation: SPEED_COEFF/khz - SPEED_OFFSET
# These depend on the system clock, calibrated for stock 1 GHz BeagleBoneBlack
# am335xgpio speed SPEED_COEFF SPEED_OFFSET
am335xgpio speed_coeffs 600000 575
am335xgpio swclk_num 2
am335xgpio swdio_num 4
am335xgpio swdio_dir_num 60
am335xgpio swdio_dir_output_state on
# USR0 LED
am335xgpio led_num 53
am335xgpio led_on_state on
am335xgpio srst_num 65
reset_config srst_only srst_push_pull