Shutdown command invoked

[baqwas]

Hello, I'm using the example ScanNetworks without modifications. The code compiles, the code upload succeeds but the output window has the following lines in tail section:

Sketch uses 195796 bytes (18%) of program storage space. Maximum is 1048576 bytes.
Global variables use 53388 bytes (20%) of dynamic memory, leaving 208756 bytes for local variables. Maximum is 262144 bytes.
GNU ARM Eclipse 64-bits Open On-Chip Debugger 0.10.0-00113-g0f83948 (2017-01-24-19:18)
Licensed under GNU GPL v2
For bug reports, read
    http://openocd.org/doc/doxygen/bugs.html
hla_swd
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
adapter speed: 2000 kHz
adapter_nsrst_delay: 100
none separate
Info : Unable to match requested speed 2000 kHz, using 1800 kHz
Info : Unable to match requested speed 2000 kHz, using 1800 kHz
Info : clock speed 1800 kHz
Info : STLINK v2 JTAG v28 API v2 SWIM v17 VID 0x0483 PID 0x374B
Info : using stlink api v2
Info : Target voltage: 3.269076
Info : stm32f4x.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : Unable to match requested speed 2000 kHz, using 1800 kHz
Info : Unable to match requested speed 2000 kHz, using 1800 kHz
adapter speed: 1800 kHz
target halted due to debug-request, current mode: Thread 
xPSR: 0x01000000 pc: 0x08000034 msp: 0x200073fc
Info : Unable to match requested speed 8000 kHz, using 4000 kHz
Info : Unable to match requested speed 8000 kHz, using 4000 kHz
adapter speed: 4000 kHz
** Programming Started **
auto erase enabled
Info : device id = 0x30006441
Info : flash size = 1024kbytes
target halted due to breakpoint, current mode: Thread 
xPSR: 0x61000000 pc: 0x20000046 msp: 0x200073fc
wrote 212992 bytes from file /tmp/arduino_build_607412/ScanNetworks.ino.bin in 4.969891s (41.852 KiB/s)
** Programming Finished **
** Verify Started **
target halted due to breakpoint, current mode: Thread 
xPSR: 0x61000000 pc: 0x2000002e msp: 0x200073fc
verified 197380 bytes in 0.377446s (510.679 KiB/s)
** Verified OK **
** Resetting Target **
Info : Unable to match requested speed 2000 kHz, using 1800 kHz
Info : Unable to match requested speed 2000 kHz, using 1800 kHz
adapter speed: 1800 kHz
shutdown command invoked

Only the power (green) led remains lit. Subsequently, I can run Blink without issue but reverting back to ScanNetworks (or any other example other than Blink) seems to initiate shutdown of all things. What is the workaround, please? Thanks.

Kind regards.

[dooriya]

@baqwas Thank you for raising this issue. We are currently investigating and will update you shortly.

[JerryYangKai]

@baqwas Hi! I am trying to repro your issue but I haven't seen shutdown in my devkit. So can you show me more information about your project, like your settings in c_cpp_properties.json?

the following lines are part of my output when upload

Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
adapter speed: 2000 kHz
adapter_nsrst_delay: 100
none separate
Info : Unable to match requested speed 2000 kHz, using 1800 kHz
Info : Unable to match requested speed 2000 kHz, using 1800 kHz
Info : clock speed 1800 kHz
Info : STLINK v2 JTAG v28 API v2 SWIM v17 VID 0x0483 PID 0x374B
Info : using stlink api v2
Info : Target voltage: 3.293927
Info : stm32f4x.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : Unable to match requested speed 2000 kHz, using 1800 kHz
Info : Unable to match requested speed 2000 kHz, using 1800 kHz
adapter speed: 1800 kHz
target halted due to debug-request, current mode: Thread 
xPSR: 0x01000000 pc: 0x08000034 msp: 0x2000d650
Info : Unable to match requested speed 8000 kHz, using 4000 kHz
Info : Unable to match requested speed 8000 kHz, using 4000 kHz
adapter speed: 4000 kHz
** Programming Started **
auto erase enabled
Info : device id = 0x30006441
Info : flash size = 1024kbytes
target halted due to breakpoint, current mode: Thread 
xPSR: 0x61000000 pc: 0x20000046 msp: 0x2000d650
wrote 344064 bytes from file C:\Users\kaiyan\AppData\Local\Temp\arduino_build_895940/ScanNetworks.ino.bin in 8.087001s (41.548 KiB/s)
** Programming Finished **
** Verify Started **
target halted due to breakpoint, current mode: Thread 
[Done] Uploaded the sketch: ScanNetworks.ino

and in Serial Monitor

Scanning available networks...
** Scan Networks **
number of available networks:10
0) Ruff_R0101965    Signal: -60 dBm Encryption: WPA2
1) MSFTINET Signal: -68 dBm Encryption: WPA2
2) MSFTCORP Signal: -68 dBm Encryption: WPA2
3) MSFTGUEST    Signal: -69 dBm Encryption: None
4) MSFTCORP Signal: -69 dBm Encryption: WPA2
5) MSFTINET Signal: -69 dBm Encryption: WPA2
6) laptop_jiaqi Signal: -70 dBm Encryption: WPA2
7) MSFTGUEST    Signal: -70 dBm Encryption: None
8) MSFTINET Signal: -77 dBm Encryption: WPA2
9) MSFTGUEST    Signal: -77 dBm Encryption: None