https://w.electrodragon.com/w/index.php?action=history&feed=atom&title=OpenOCD_WindowsOpenOCD Windows - Revision history2026-07-23T22:23:13ZRevision history for this page on the wikiMediaWiki 1.37.2https://w.electrodragon.com/w/index.php?title=OpenOCD_Windows&diff=27233&oldid=prevChao: Created page with "* Get from here: https://gnutoolchains.com/arm-eabi/openocd/ * Reference to remove protect from here: https://stackoverflow.com/questions/52308978/problem-flashing-nrf52-chip-..."2020-06-23T14:21:01Z<p>Created page with "* Get from here: https://gnutoolchains.com/arm-eabi/openocd/ * Reference to remove protect from here: https://stackoverflow.com/questions/52308978/problem-flashing-nrf52-chip-..."</p>
<p><b>New page</b></p><div>* Get from here: https://gnutoolchains.com/arm-eabi/openocd/<br />
* Reference to remove protect from here: https://stackoverflow.com/questions/52308978/problem-flashing-nrf52-chip-using-openocd<br />
Step by Step<br />
* Connect Hardware DAPLink 3.3V / GND / DIO / CLK / ?RST to NRF52832<br />
* Run OpenOCD in windows: E:\HE\Download\openocd-20200530\OpenOCD-20200530-0.10.0\bin>openocd.exe -d2 -f interface/cmsis-dap.cfg -f target/nrf52.cfg<br />
* And get: <br />
Info : auto-selecting first available session transport "swd". To override use 'transport select <transport>'.<br />
Info : Listening on port 6666 for tcl connections<br />
Info : Listening on port 4444 for telnet connections<br />
Info : CMSIS-DAP: SWD Supported<br />
Info : CMSIS-DAP: JTAG Supported<br />
Info : CMSIS-DAP: FW Version = 1.0<br />
Info : CMSIS-DAP: Interface Initialised (SWD)<br />
Info : SWCLK/TCK = 1 SWDIO/TMS = 1 TDI = 1 TDO = 1 nTRST = 0 nRESET = 1<br />
Info : CMSIS-DAP: Interface ready<br />
Info : clock speed 1000 kHz<br />
Info : SWD DPIDR 0x2ba01477<br />
Error: Could not find MEM-AP to control the core<br />
Info : starting gdb server for nrf52.cpu on 3333<br />
Info : Listening on port 3333 for gdb connections<br />
* Connect by telnet with any software, and run below:<br />
Connecting to 127.0.0.1:4444...<br />
Connection established.<br />
To escape to local shell, press 'Ctrl+Alt+]'.<br />
Open On-Chip Debugger<br />
> nrf52.dap apreg 1 0x04<br />
0x00000000<br />
<br />
> nrf52.dap apreg 1 0x04 0x01<br />
> nrf52.dap apreg 1 0x04<br />
0x00000001<br />
<br />
> <br />
* Now the protection is removed<br />
[[category: OpenOCD]]</div>Chao