On Wed, Feb 4, 2015 at 6:02 PM, Tomas Vanek <tom_...@users.sourceforge.net>
wrote:
> time to time I encounter an error reading a configuration register using
> ST-Link V2.
>
> > mdh 0x40048010 2
> 0x40048010: 0000 0000
>
It probably doesn't affect your issue but be aware that the ST-Link doesn't
support 16-bit accesses. I think OpenOCD maps it to two 8-bit accesses,
which of course may fail when dealing with peripheral registers. IMO we
should fail them instead.
Also, if things haven't improved since I used it last time, read failures
do not propagate to OpenOCD so if you read bogus addresses (or use
unsupported access sizes) you get bogus data, instead of failure. ST-Link
really isn't the best tool to use for low level debug and I don't get why
people insist on using it for that.
/Andreas
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