diff options
Diffstat (limited to 'tcl/interface/beaglebone-jtag-native.cfg')
| -rw-r--r-- | tcl/interface/beaglebone-jtag-native.cfg | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tcl/interface/beaglebone-jtag-native.cfg b/tcl/interface/beaglebone-jtag-native.cfg new file mode 100644 index 0000000..cd32ca4 --- /dev/null +++ b/tcl/interface/beaglebone-jtag-native.cfg @@ -0,0 +1,28 @@ +# SPDX-License-Identifier: GPL-2.0-or-later +# BeagleBone native GPIO interface for JTAG +# +# 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 tdo_num 20 +am335xgpio tdi_num 60 +am335xgpio tms_num 4 +am335xgpio tck_num 2 + +am335xgpio led_num 51 +am335xgpio led_on_state on + +am335xgpio srst_num 65 +reset_config srst_only srst_push_pull |