1 # Defines basic Tcl procs for OpenOCD JTAG module
3 # Executed during "init". Can be overridden
4 # by board/target/... scripts
6 if {[catch {jtag arp_init} err]!=0} {
7 # try resetting additionally
12 # This reset logic may be overridden by board/target/... scripts as needed
13 # to provide a reset that, if possible, is close to a power-up reset.
15 # Exit requirements include: (a) JTAG must be working, (b) the scan
16 # chain was validated with "jtag arp_init" (or equivalent), (c) nothing
17 # stays in reset. No TAP-specific scans were performed. It's OK if
18 # some targets haven't been reset yet; they may need TAP-specific scans.
20 # The "mode" values include: halt, init, run (from "reset" command);
21 # startup (at OpenOCD server startup, when JTAG may not yet work); and
22 # potentially more (for reset types like cold, warm, etc)
23 proc init_reset { mode } {
31 # TODO: power_restore and power_dropout are currently neither
32 # documented nor supported.
34 proc power_restore {} {
35 echo "Sensed power restore, running reset init and halting GDB."
38 # Halt GDB so user can deal with a detected power restore.
40 # After GDB is halted, then output is no longer forwarded
42 set targets [target names]
45 $t invoke-event arp_halt_gdb
49 add_help_text power_restore "Overridable procedure run when power restore is detected. Runs 'reset init' by default."
51 proc power_dropout {} {
52 echo "Sensed power dropout."
57 # TODO: srst_deasserted and srst_asserted are currently neither
58 # documented nor supported.
60 proc srst_deasserted {} {
61 echo "Sensed nSRST deasserted, running reset init and halting GDB."
64 # Halt GDB so user can deal with a detected reset.
66 # After GDB is halted, then output is no longer forwarded
68 set targets [target names]
71 $t invoke-event arp_halt_gdb
75 add_help_text srst_deasserted "Overridable procedure run when srst deassert is detected. Runs 'reset init' by default."
77 proc srst_asserted {} {
78 echo "Sensed nSRST asserted."
81 # measure actual JTAG clock
84 set iterations 10000000;
86 echo "Running at more than [expr $iterations.0 / ([ms]-$start_time)] kHz";
89 add_help_text measure_clk "Runs a test to measure the JTAG clk. Useful with RCLK / RTCK."
91 proc default_to_jtag { f args } {
92 set current_transport [transport select]
96 error "session transport is \"$current_transport\" but your config requires JTAG"
101 eval default_to_jtag jtag $args
104 proc jtag_rclk args {
105 eval default_to_jtag jtag_rclk $args
108 proc jtag_ntrst_delay args {
109 eval default_to_jtag jtag_ntrst_delay $args
112 proc jtag_ntrst_assert_width args {
113 eval default_to_jtag jtag_ntrst_assert_width $args
116 # BEGIN MIGRATION AIDS ... these adapter operations originally had
117 # JTAG-specific names despite the fact that the operations were not
118 # specific to JTAG, or otherwise had troublesome/misleading names.
120 # FIXME phase these aids out after some releases
122 proc jtag_reset args {
123 echo "DEPRECATED! use 'adapter \[de\]assert' not 'jtag_reset'"
126 {eval adapter deassert trst deassert srst}
128 {eval adapter deassert trst assert srst}
130 {eval adapter assert trst deassert srst}
132 {eval adapter assert trst assert srst}
134 {return -code 1 -level 1 "jtag_reset: syntax error"}
138 proc adapter_khz args {
139 echo "DEPRECATED! use 'adapter speed' not 'adapter_khz'"
140 eval adapter speed $args
143 proc adapter_name args {
144 echo "DEPRECATED! use 'adapter name' not 'adapter_name'"
145 eval adapter name $args
148 proc adapter_nsrst_delay args {
149 echo "DEPRECATED! use 'adapter srst delay' not 'adapter_nsrst_delay'"
150 eval adapter srst delay $args
153 proc adapter_nsrst_assert_width args {
154 echo "DEPRECATED! use 'adapter srst pulse_width' not 'adapter_nsrst_assert_width'"
155 eval adapter srst pulse_width $args
158 proc interface args {
159 echo "DEPRECATED! use 'adapter driver' not 'interface'"
160 eval adapter driver $args
163 proc interface_transports args {
164 echo "DEPRECATED! use 'adapter transports' not 'interface_transports'"
165 eval adapter transports $args
168 proc interface_list args {
169 echo "DEPRECATED! use 'adapter list' not 'interface_list'"
170 eval adapter list $args
173 proc ftdi_location args {
174 echo "DEPRECATED! use 'adapter usb location' not 'ftdi_location'"
175 eval adapter usb location $args
178 proc xds110_serial args {
179 echo "DEPRECATED! use 'xds110 serial' not 'xds110_serial'"
180 eval xds110 serial $args
183 proc xds110_supply_voltage args {
184 echo "DEPRECATED! use 'xds110 supply' not 'xds110_supply_voltage'"
185 eval xds110 supply $args
188 proc hla {cmd args} {
189 tailcall "hla $cmd" {*}$args
192 proc "hla newtap" {args} {
193 echo "DEPRECATED! use 'swj_newdap' not 'hla newtap'"
194 eval swj_newdap $args