tcl/interface/raspberrypi-native.cfg

   1 # SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 #
   4 # Config for using Raspberry Pi's expansion header
   5 #
   6 # This is best used with a fast enough buffer but also
   7 # is suitable for direct connection if the target voltage
   8 # matches RPi's 3.3V and the cable is short enough.
   9 #
  10 # Do not forget the GND connection, pin 6 of the expansion header.
  11 #
  12
  13 adapter driver bcm2835gpio
  14
  15 bcm2835gpio peripheral_base 0x20000000
  16
  17 # Transition delay calculation: SPEED_COEFF/khz - SPEED_OFFSET
  18 # These depend on system clock, calibrated for stock 700MHz
  19 # bcm2835gpio speed SPEED_COEFF SPEED_OFFSET
  20 bcm2835gpio speed_coeffs 113714 28
  21
  22 # Each of the JTAG lines need a gpio number set: tck tms tdi tdo
  23 # Header pin numbers: 23 22 19 21
  24 bcm2835gpio jtag_nums 11 25 10 9
  25
  26 # Each of the SWD lines need a gpio number set: swclk swdio
  27 # Header pin numbers: 23 22
  28 bcm2835gpio swd_nums 11 25
  29
  30 # If you define trst or srst, use appropriate reset_config
  31 # Header pin numbers: TRST - 26, SRST - 18
  32
  33 # bcm2835gpio trst_num 7
  34 # reset_config trst_only
  35
  36 # bcm2835gpio srst_num 24
  37 # reset_config srst_only srst_push_pull
  38
  39 # or if you have both connected,
  40 # reset_config trst_and_srst srst_push_pull