LAUNCHXL-CC1352R1: Error: (Error -1170 @ 0x0) Unable to access the DAP

Part Number: LAUNCHXL-CC1352R1

Tool/software:

Hello everyone,

I have two LAUNCHXL-CC1352R1 in front of me, on which I am trying to get the BLEStack project_zero running (I am still a complete beginner). The project has already been imported and the build has also worked. However, when I now try to debug the whole thing, I encounter problems. I get the following error message as soon as it goes into the BIOS_start():

Error: (Error -1170 @ 0x0) Unable to access the DAP. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 20.0.0.3178)
Trouble Halting Target CPU: (Error -2064 @ 0x0) Unable to read device status. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK). (Emulation package 20.0.0.3178)
Unable to determine target status after 20 attempts
Failed to remove the debug state from the target before disconnecting. There may still be breakpoint op-codes embedded in program memory. It is recommended that you reset the emulator before you connect and reload your program before you continue debugging

What I have already tried:

  • Remove power supply and reconnect
  • TCLK lowered to 1.0 MHz
  • Used a different USB cable
  • Removed the USB hub between laptop and board
  • Checked for updates

There are no set breakpoints and I have already restarted CCS Theia several times.

What am I doing wrong?