- Remove connect_assert_srst global.
- Attach functions always release reset.
- Platforms provide a method to poll the reset pin.
- Reset on scan is all internal to command.c
- Reset is released on a failed scan. Fixes#111
Ignore the exception when polling for halt, and report the exception
to the user if halting the target fails.
Remove old allow_timeout flag in DP struct that's no longer needed.
All source files include general.h first and before anything else.
This inlcludes platform.h and platform_support.h
No header file needs to include to include any of these, but should include
any others needed for it's own declarations.
A sleeping target continues to communicate over SWD properly but
consistently returns SWDP_ACK_WAIT.
It might be nice to be able to wait for the target to wake up on its
own but if it's not going to wake up, BMP becomes absolutely
unresponsive. Probably the timeout should be made configurable or some
other workaround invented.
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
This patch introduces a new command, "connect_srst [enable|disable]"
which allows to enable special mode in which SRST would be pulled low
before the SWD scan till attaching to a target.
Since on Cortex-Mx the SRST signal doesn't gate JTAG and SWD, it's
possible to connect to a target while holding reset, ask it to stop at
reset vector and only then deassert reset, thus allowing to attach to
the kind of firmware that goes immediately to sleep or disables
debugging by other means early on start.
Tested on an STM32VLDiscovery board with STM32F100 configured to go to
STOP mode and executing WFI in the very beginning of main().
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Gareth McMullin
Piotr Esden-Tempski
Paul Fertser