30 lines
863 B
INI
30 lines
863 B
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
|