Jens Bauer wrote:
> >> What's required in order to get rid of the "Error: session's transport
> >> is already selected." message in for instance lpc1788.cfg ?
> > 
> > This suggests that lpc1788.cfg is trying to select transport *again* ?
> 
> That was my impression too, but I can't seem to find where this would happen.

openocd/tcl $ git grep transport
board/voltcraft_dso-3062c.cfg:# Enable this if your JTAG adapter supports 
multiple transports (JTAG or SWD).
board/voltcraft_dso-3062c.cfg:### transport select jtag
target/k40.cfg:# K40 devices support both JTAG and SWD transports.
target/k60.cfg:# K60 devices support both JTAG and SWD transports.
target/lpc17xx.cfg:# LPC17xx chips support both JTAG and SWD transports.
target/lpc17xx.cfg:# Adapt based on what transport is active.
target/stellaris.cfg:# Luminary chips support both JTAG and SWD transports.
target/stellaris.cfg:# Adapt based on what transport is active.
target/stm32_stlink.cfg:transport select $_TRANSPORT
target/swj-dp.tcl:# on which transport is active.
target/swj-dp.tcl:# based on the transport in use with this session.
target/swj-dp.tcl:# for now, ignore non-JTAG and non-SWD transports
target/swj-dp.tcl:set tran [transport select]

Ignoring all the comments the last one looks interesting.

openocd/tcl $ git grep swj-dp
target/k40.cfg:source [find target/swj-dp.tcl]
target/k60.cfg:source [find target/swj-dp.tcl]
target/lpc17xx.cfg:source [find target/swj-dp.tcl]
target/stellaris.cfg:source [find target/swj-dp.tcl]

Maybe OpenOCD spits out an error message even though the current
transport is only being inquired.


//Peter

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