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|
# Defines basic Tcl procs for OpenOCD JTAG module
# Executed during "init". Can be overridden
# by board/target/... scripts
proc jtag_init {} {
if {[catch {jtag arp_init} err]!=0} {
# try resetting additionally
init_reset startup
}
}
# This reset logic may be overridden by board/target/... scripts as needed
# to provide a reset that, if possible, is close to a power-up reset.
#
# Exit requirements include: (a) JTAG must be working, (b) the scan
# chain was validated with "jtag arp_init" (or equivalent), (c) nothing
# stays in reset. No TAP-specific scans were performed. It's OK if
# some targets haven't been reset yet; they may need TAP-specific scans.
#
# The "mode" values include: halt, init, run (from "reset" command);
# startup (at OpenOCD server startup, when JTAG may not yet work); and
# potentially more (for reset types like cold, warm, etc)
proc init_reset { mode } {
if {[using_jtag]} {
jtag arp_init-reset
}
}
#########
# TODO: power_restore and power_dropout are currently neither
# documented nor supported.
proc power_restore {} {
echo "Sensed power restore, running reset init and halting GDB."
reset init
# Halt GDB so user can deal with a detected power restore.
#
# After GDB is halted, then output is no longer forwarded
# to the GDB console.
set targets [target names]
foreach t $targets {
# New event script.
$t invoke-event arp_halt_gdb
}
}
add_help_text power_restore "Overridable procedure run when power restore is detected. Runs 'reset init' by default."
proc power_dropout {} {
echo "Sensed power dropout."
}
#########
# TODO: srst_deasserted and srst_asserted are currently neither
# documented nor supported.
proc srst_deasserted {} {
echo "Sensed nSRST deasserted, running reset init and halting GDB."
reset init
# Halt GDB so user can deal with a detected reset.
#
# After GDB is halted, then output is no longer forwarded
# to the GDB console.
set targets [target names]
foreach t $targets {
# New event script.
$t invoke-event arp_halt_gdb
}
}
add_help_text srst_deasserted "Overridable procedure run when srst deassert is detected. Runs 'reset init' by default."
proc srst_asserted {} {
echo "Sensed nSRST asserted."
}
# measure actual JTAG clock
proc measure_clk {} {
set start_time [ms];
set iterations 10000000;
runtest $iterations;
echo "Running at more than [expr $iterations.0 / ([ms]-$start_time)] kHz";
}
add_help_text measure_clk "Runs a test to measure the JTAG clk. Useful with RCLK / RTCK."
proc default_to_jtag { f args } {
set current_transport [transport select]
if {[using_jtag]} {
eval $f $args
} {
error "session transport is \"$current_transport\" but your config requires JTAG"
}
}
proc jtag args {
eval default_to_jtag jtag $args
}
proc jtag_rclk args {
eval default_to_jtag jtag_rclk $args
}
proc jtag_ntrst_delay args {
eval default_to_jtag jtag_ntrst_delay $args
}
proc jtag_ntrst_assert_width args {
eval default_to_jtag jtag_ntrst_assert_width $args
}
# BEGIN MIGRATION AIDS ... these adapter operations originally had
# JTAG-specific names despite the fact that the operations were not
# specific to JTAG, or otherwise had troublesome/misleading names.
#
# FIXME phase these aids out after some releases
#
lappend _telnet_autocomplete_skip jtag_reset
proc jtag_reset args {
echo "DEPRECATED! use 'adapter \[de\]assert' not 'jtag_reset'"
switch $args {
"0 0"
{eval adapter deassert trst deassert srst}
"0 1"
{eval adapter deassert trst assert srst}
"1 0"
{eval adapter assert trst deassert srst}
"1 1"
{eval adapter assert trst assert srst}
default
{return -code 1 -level 1 "jtag_reset: syntax error"}
}
}
lappend _telnet_autocomplete_skip adapter_khz
proc adapter_khz args {
echo "DEPRECATED! use 'adapter speed' not 'adapter_khz'"
eval adapter speed $args
}
lappend _telnet_autocomplete_skip adapter_name
proc adapter_name args {
echo "DEPRECATED! use 'adapter name' not 'adapter_name'"
eval adapter name $args
}
lappend _telnet_autocomplete_skip adapter_nsrst_delay
proc adapter_nsrst_delay args {
echo "DEPRECATED! use 'adapter srst delay' not 'adapter_nsrst_delay'"
eval adapter srst delay $args
}
lappend _telnet_autocomplete_skip adapter_nsrst_assert_width
proc adapter_nsrst_assert_width args {
echo "DEPRECATED! use 'adapter srst pulse_width' not 'adapter_nsrst_assert_width'"
eval adapter srst pulse_width $args
}
lappend _telnet_autocomplete_skip interface
proc interface args {
echo "DEPRECATED! use 'adapter driver' not 'interface'"
eval adapter driver $args
}
lappend _telnet_autocomplete_skip interface_transports
proc interface_transports args {
echo "DEPRECATED! use 'adapter transports' not 'interface_transports'"
eval adapter transports $args
}
lappend _telnet_autocomplete_skip interface_list
proc interface_list args {
echo "DEPRECATED! use 'adapter list' not 'interface_list'"
eval adapter list $args
}
lappend _telnet_autocomplete_skip ftdi_location
proc ftdi_location args {
echo "DEPRECATED! use 'adapter usb location' not 'ftdi_location'"
eval adapter usb location $args
}
lappend _telnet_autocomplete_skip xds110_serial
proc xds110_serial args {
echo "DEPRECATED! use 'xds110 serial' not 'xds110_serial'"
eval xds110 serial $args
}
lappend _telnet_autocomplete_skip xds110_supply_voltage
proc xds110_supply_voltage args {
echo "DEPRECATED! use 'xds110 supply' not 'xds110_supply_voltage'"
eval xds110 supply $args
}
proc hla {cmd args} {
tailcall "hla $cmd" {*}$args
}
lappend _telnet_autocomplete_skip "hla newtap"
proc "hla newtap" {args} {
echo "DEPRECATED! use 'swj_newdap' not 'hla newtap'"
eval swj_newdap $args
}
# END MIGRATION AIDS
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