Issue flashing onto Nucleo L496ZGP board using detached ST-Link
I am trying to simply flash onto my nucleo board using the default configurations that the STM32CubeIDE generates for me. I have detached the ST-Link and connected it externally to the board as shown below:
Table 1 of the connections from the ST-Link to the board
| ST-Link | Board |
| CN5 Pin 1 (VDD) | CN8 Pin 4 (3.3v) |
| CN5 Pin 2 (SWCLK) | CN11 Pin 8 (PA_14) |
| CN5 Pin 3 (GND) | CN8 Pin 6 (GND) |
| CN5 Pin 4 (SWDIO) | CN11 Pin 7 (PA_13) |
| CN5 Pin 5 (NRST) | CN8 Pin 3 (NRST) |
| CN5 Pin 6 (SWO) | CN7 Pin 8 (PB_3) |
| JP1 Pin 1 (PWT_EXT) | CN11 Pin 6 (3.3v) |
| JP1 Pin 2 (GND) | CN12 Pin 5 (GND) |
Note: on the ST-Link, the jumpers on CN4 were taken off. And on the board, the jumpers for JP4 were taken off. The configuration decisions were based on the documentations
- https://www.st.com/resource/en/user_manual/um2179-stm32-nucleo144-boards-mb1312-stmicroelectronics.pdf
- https://os.mbed.com/platforms/ST-Nucleo-L496ZG/
When running the STMCubeProgrammer, the following configurations are shown:
Note: I am not sure why, but the target voltage is extremely low but the stm32 on the board is receiving the 3.3v needed to operate.
In the IDE, I selected the correct board (STM32 L496ZG-P), and enabled UART4 to use just for an example. When the code is generated, below are the run configurations I am using:
Overall, the memory segments from 0-19 (all 20) gets erased, but I am having issues trying to flash onto the memory segments as shown below:
I have done the following in an attempt to fix this:
- Download a new driver
- use older versions of the cube ide
- configured different UART ports
- Tried using an External Loader
I don't even know what the problem is honestly. I've gotten about 4 different errors including an error in erasing memory or even expected byte issues. But the most common one is failed to download segment[0]. Any help is appreciated.
Thank you