45 lines
1.2 KiB
INI
45 lines
1.2 KiB
INI
# SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
#
|
|
# Config for using Raspberry Pi's expansion header
|
|
#
|
|
# This is best used with a fast enough buffer but also
|
|
# is suitable for direct connection if the target voltage
|
|
# matches RPi's 3.3V and the cable is short enough.
|
|
#
|
|
# Do not forget the GND connection, pin 6 of the expansion header.
|
|
#
|
|
|
|
adapter driver bcm2835gpio
|
|
|
|
bcm2835gpio peripheral_base 0x3F000000
|
|
|
|
# Transition delay calculation: SPEED_COEFF/khz - SPEED_OFFSET
|
|
# These depend on system clock, calibrated for stock 700MHz
|
|
# bcm2835gpio speed SPEED_COEFF SPEED_OFFSET
|
|
bcm2835gpio speed_coeffs 146203 36
|
|
|
|
# Each of the JTAG lines need a gpio number set: tck tms tdi tdo
|
|
# Header pin numbers: 23 22 19 21
|
|
adapter gpio tck -chip 0 11
|
|
adapter gpio tms -chip 0 25
|
|
adapter gpio tdi -chip 0 10
|
|
adapter gpio tdo -chip 0 9
|
|
|
|
# Each of the SWD lines need a gpio number set: swclk swdio
|
|
# Header pin numbers: 23 22
|
|
adapter gpio swclk -chip 0 11
|
|
adapter gpio swdio -chip 0 25
|
|
|
|
# If you define trst or srst, use appropriate reset_config
|
|
# Header pin numbers: TRST - 26, SRST - 18
|
|
|
|
# adapter gpio trst -chip 0 7
|
|
# reset_config trst_only
|
|
|
|
# adapter gpio srst -chip 0 24
|
|
# reset_config srst_only srst_push_pull
|
|
|
|
# or if you have both connected,
|
|
# reset_config trst_and_srst srst_push_pull
|