How to flash a STEVAL-PTOOL1V1 ? No device found on target.
The board is a STEVAL-PTOOL1V1. The setup was tried on different boards.
The programmer board used is a STLINK-V3SET.
I followed the instructions on the `Getting started` document of the STEVAL-PTOOL1V1.
I power the board through J1 and J2 with a power supply supplying 12V.
I connected J8 with a jumper.
I connected the SWD pins to the STLINKS.
Here is the setup and the documentation for the SWD connector of the PTOOL1V1.

In order to communicate with the board, I tried:
- Uploading the example project of the STEVAL-PTOOL1V1 by clicking on the debbuger icon of the CubeIDE
- Clicking "Connect" in STM32CubeProgrammer
- Clicking "Connect to the target" in STM32 ST-LINK Utility
- Using the Open source version of the STMicroelectronics STLINK Tools : stlink
Here are the errors messages for the first three:
```
STMicroelectronics ST-LINK GDB server. Version 5.9.1
Copyright (c) 2021, STMicroelectronics. All rights reserved.
Starting server with the following options:
Persistent Mode : Disabled
Logging Level : 1
Listen Port Number : 61234
Status Refresh Delay : 15s
Verbose Mode : Disabled
SWD Debug : Enabled
InitWhile : Enabled
Target no device found
Error in initializing ST-LINK device.
Reason: No device found on target.
```
```
09:04:16 : STM32CubeProgrammer API v2.8.0
09:21:46 : Warning: Device changed, refreshing...
09:21:46 : ST-LINK SN : 002C00343156501620323443
09:21:46 : ST-LINK FW : V3J8M3B5S1
09:21:46 : Board : STLINK-V3SET
09:21:46 : Voltage : 3.21V
09:21:46 : No STM32 target found!
09:21:46 : ST-LINK SN : 002C00343156501620323443
09:21:46 : ST-LINK FW : V3J8M3B5S1
09:21:46 : Board : STLINK-V3SET
09:21:46 : Voltage : 3.23V
09:21:46 : Error: No STM32 target found!
```
```
09:22:17 : Can not connect to target!
If you're trying to connect to an STM32W1xx device, please select Normal or HotPlug mode from Target->Settings menu.
If you're trying to connect to a low frequency application , please select a lower SWD Frequency mode from Target->Settings menu.
09:22:23 : No target connected
```
In STM32CubeProgrammer, I tried changing the configuration of the STLINK. The port is at `SWD`. I tried `Hardware`, `Core` and `Software` for the reset mode. I tried `Normal`, `Under Reset` and `Hot plug` for the mode. Same result with every configurations.
When the board is powered, I have a tension of 3.3V on the VDD of the SWD connector.
Any idea why the flashing process is not working ?
