31 lines
1.1 KiB
Tcl
31 lines
1.1 KiB
Tcl
# ARM Debug Interface V5 (ADI_V5) utility
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# ... Mostly for SWJ-DP (not SW-DP or JTAG-DP, since
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# SW-DP and JTAG-DP targets don't need to switch based
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# on which transport is active.
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#
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# declare a JTAG or SWD Debug Access Point (DAP)
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# based on the transport in use with this session.
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# You can't access JTAG ops when SWD is active, etc.
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# params are currently what "jtag newtap" uses
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# because OpenOCD internals are still strongly biased
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# to JTAG .... but for SWD, "irlen" etc are ignored,
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# and the internals work differently
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# for now, ignore non-JTAG and non-SWD transports
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# (e.g. initial flash programming via SPI or UART)
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# split out "chip" and "tag" so we can someday handle
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# them more uniformly irlen too...)
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global using_jtag
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set using_jtag 1
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proc swj_newdap {chip tag args} {
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global using_jtag
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set tran [transport select]
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if [string equal $tran "jtag"] { eval jtag newtap $chip $tag $args; set using_jtag 1 }
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if [string equal $tran "swd"] { eval swd newdap $chip $tag $args; set using_jtag 0 }
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if [string equal $tran "cmsis-dap"] { eval cmsis-dap newdap $chip $tag $args; set using_jtag 0 }
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}
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