>>>>> "Jens" == Jens Bauer <[email protected]> writes:
Jens> Hi Andreas. On Sun, 18 Jan 2015 12:40:03 +0100, Andreas
Jens> Fritiofson wrote:
>> You can use a config like http://openocd.zylin.com/2196 (but adapted
>> for STM32F4) that sets this register when the chip is examined.
>> Everything should keep working after that, until the next
>> power-cycle. You'll also need reset_config connect_assert_srst to be
>> able to connect to the chip in the first place.
Jens> This is very helpful. I've *got* to try this out! -Thank you so
Jens> much! :)
For me problems are worse. I have a Nucleo STM32F411 project with a battery
backup. As NRST and UART TX (as seen from the debuggee) are conected to non
5 Volt tolerant pins on the F103 of STLINK debugger. So if the debugger F103
is unpowered and the F411 battery powered, these pins will back power the
F103 and caused current surge(3 mA). So I need to remove R23, SB12 and SB21 on
the
Nucleo board and the STLINK can no longer serve the NRST line. Now in low
power, Flash of Stop mode, the F411 now only draws about 20 ua :-)
Connecting USB wakes up the CPU.
Even in that situation, blackmagic has no problems to connect.
--
Uwe Bonnes [email protected]
Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
------------------------------------------------------------------------------
New Year. New Location. New Benefits. New Data Center in Ashburn, VA.
GigeNET is offering a free month of service with a new server in Ashburn.
Choose from 2 high performing configs, both with 100TB of bandwidth.
Higher redundancy.Lower latency.Increased capacity.Completely compliant.
http://p.sf.net/sfu/gigenet
_______________________________________________
OpenOCD-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/openocd-devel
