reset an stm32f746 discovery

[andy0105]

Hi all, on stm32f746 disco, I'm using the Mbed ide but i have the stmcube installed as well

I've been writing a simple updater app that sits at 0x080e0000 with mixed success  switching to a previous project, the code downloads but on running the board appears to run the updater code instead. How can I fix this? 

I've added an mbed_app.json to both projects with             "target.mbed_app_start": "0x08000000"

in it for the main app and 0x080e0000 in the updater 

I'm unable to get my main app running again 

I think the easiest way would be if I can just reset the device to factory? 

[MOBEJ · Accepted solution]

Hello @andy0105  ,

you can use STM32CubeProgrammer to erase the device and reset it to factory settings. Here are the steps to do this:

• Download and Install STM32CubeProgrammer: If you haven't already, download and install STM32CubeProgrammer from the STMicroelectronics website.
• Connect Your Board: Connect your STM32F746 Discovery board to your computer via USB.
• Open STM32CubeProgrammer: Launch the STM32CubeProgrammer application.
• Select the ST-LINK Interface: In the connection settings, select the "ST-LINK" interface and click "Connect".
• Erase the Device :

 - Go to the "Erasing & Programming" tab.

-  Click on the "Full chip erase" button to erase the entire flash memory of the device

Br