After building the latest OpenOCD from sources on a linux box, another
problem (probably related) showed itself. OpenOCD would lose connection to
the target constantly. Anything more than about 100ms of running would
cause this (as in I could usually single step, and set breakpoints not too
far ahead in code and run to them).
In case anyone else has this problem, another open-source application
"texane/stlink" performs wonderfully for the STM32L151CB as a gdbserver.
https://github.com/texane/stlink
Dan.
On Tue, Oct 22, 2013 at 3:30 PM, Dan Dev <[email protected]> wrote:
> Hello,
>
> I have run into a problem. I cannot debug using the STM32L-Discovery (USB
> ST-Link V2) to connect to an STM32L151CB (more flash, fewer pins).
>
> The ST-Link V2 interface works fine with my new board and IAR's debugger,
> just not with OpenOCD. Also, the ST-Link V2 interface works fine with
> OpenOCD connecting to the original STM32L-Discovery target (STM32L152RB).
> I suspect maybe a bug to do with specific model STM32L151CB.
>
> I would appreciate any help, and can provide additional debug outputs as
> requested.
>
> Thanks in advance,
>
> Dan.
>
> --
> Setup:
> OpenOCD 0.7.0 64-bit (latest Win binaries from freddiechoppin.info)
> Win 7 64-bit
>
> Here are the two command windows output:
>
> C:\DEV>openocd -f board/stm32ldiscovery.cfg
> Open On-Chip Debugger 0.7.0 (2013-05-05-10:44)
> Licensed under GNU GPL v2
> For bug reports, read
> http://openocd.sourceforge.net/doc/doxygen/bugs.html
> srst_only separate srst_nogate srst_open_drain connect_deassert_srst
> Info : This adapter doesn't support configurable speed
> Info : STLINK v2 JTAG v17 API v2 SWIM v0 VID 0x0483 PID 0x3748
> Info : Target voltage: 2.884534
> Info : stm32lx.cpu: hardware has 6 breakpoints, 4 watchpoints
> Info : accepting 'telnet' connection from 4444
> Error: timed out while waiting for target halted
> TARGET: stm32lx.cpu - Not halted
> in procedure 'reset'
>
> C:\DEV>telnet localhost 4444
> Open On-Chip Debugger
> > reset halt
> timed out while waiting for target halted
> TARGET: stm32lx.cpu - Not halted
> in procedure 'reset'
>
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