I currently have a problem with the connection between the debugger ST-Link V2, ARM Atollic 8.0.0 and a custom board with STM32F469. The Atollic and the ST-Link utility believe the Target is halted (and can't load programs or debug), the ST-LINK_gdbserver and the ST-Link utility can't recognize the target device but the ST-Link Utility seems to be able to connect to the debugger with the Hot Plug mode, although a Read Out protection was somehow enabled, and can't erase flash.
When trying to start a debug section, the Atollic console shows the following:
Target not halted
Error in initializing ST-Link device. Reason: Target not halted.
While a message box with the following warning appears:
"Error message from debugger back end: localhost:2000: The system tried to join a drive to a directory on a joined drive."
The Atollic settings are the default ones. I also tried changing the gdb server port to 2000, but still the same result.
This error doesn't allow the debugging or loading of .elf files. I already tried to do the following:
- Turned the ST-Link on and off.
- Turned the computer on and off.
- Updated the ST-Link firmware.
- Updated the computer drivers for the debugger.
- Tried the ST-Link_gdbserver server and client
- Installed ST-Link utility
- Tried erasing the FLASH memory (Utility popped error saying "Read out memory enabled" and can't enter "Connect Under Reset" mode)
Tried reprogramming the board, but it showed me "The elf loader file is not accessible." (Since Atollic only outputs .elf files, I
tried saving a .hex file from the STM32 ST-LINK Utility, and used
Tried the ST-Link_CLI interface
After this, I also tried to run the ST-Link_gdbserver to see if I could get a different response, but all I got was the following:
"Target unknown MCU target
Error in initializing ST-Link device Reason: Unknown MCU found on target"
On the other hand, when trying the ST-Link utility, when running from "Normal" or "Connect Under Reset" mode, the utility pops a message saying stating:
"14:53:37 : Can not connect to target! Please select "Connect Under Reset" mode from Target->Settings menu and try again. If you're trying to connect to a low-frequency application, please select a lower SWD Frequency mode from Target->Settings menu. 14:53:41 : Can't halt the core"
But, when running on Hot Plug mode, a connection is made available. What's interesting is that the Device ID is not recognized, nor is the Device Family.
Although the FLASH memory cannot be erased due to a Read Out Protection, this read out protection cannot be disabled with "Option Bytes", an error message pops up stating
"Could not set Option Bytes!, Please reset the target and retry"
I believe the debugger can't recognize the MCU, and therefore a read out protection is interpreted somehow.
I don't currently have access to the hardware connection between the ST-Link and the board, so, besides from a bad connection, I'm not sure what could be wrong.
In short, I'm unable to read or write the MCU, I get "Can't halt the core", "Unknown MCU found on target" and "The system tried to join a drive to a directory on a joined drive" errors from different software.
Im running on Windows, Atollic 8.0.0, STM32 ST-LINK Utility v184.108.40.206, STLINKUSBDriver.dll v220.127.116.11, ST-LINK_CLI v18.104.22.168