$ openocd   -f interface/stlink.cfg   -c "set CPUTAPID 0x0bc11477"   -f target/stm32f0x.cfg   -c "adapter speed 1000"   -c "init; reset halt; dump_image py32F071.bin 0x08000000 0x00020000; shutdown"
Open On-Chip Debugger 0.12.0
Licensed under GNU GPL v2
For bug reports, read
	http://openocd.org/doc/doxygen/bugs.html
0x0bc11477
Info : auto-selecting first available session transport "hla_swd". To override use 'transport select <transport>'.
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
adapter speed: 1000 kHz

Info : clock speed 1000 kHz
Info : STLINK V2J34S7 (API v2) VID:PID 0483:3748
Info : Target voltage: 3.277971
Info : [stm32f0x.cpu] Cortex-M0+ r0p1 processor detected
Info : [stm32f0x.cpu] target has 4 breakpoints, 2 watchpoints
Info : starting gdb server for stm32f0x.cpu on 3333
Info : Listening on port 3333 for gdb connections
[stm32f0x.cpu] halted due to breakpoint, current mode: Thread
xPSR: 0xf1000000 pc: 0x080000d4 msp: 0x20002580
Info : Unable to match requested speed 1000 kHz, using 950 kHz
Info : Unable to match requested speed 1000 kHz, using 950 kHz
[stm32f0x.cpu] halted due to debug-request, current mode: Thread
xPSR: 0xf1000000 pc: 0x080000d4 msp: 0x20002580
shutdown command invoked