STM32F746BGTX bootloader jump to user application failing in HAL_Init

[PHolz.1]

Hello,
I have a custom borad with a STM32F746BGTX and I use GFX Touch 4.20. I would like to have a bootloader and an application on the STM32F746BGTX.
I have different images in gfx Touch for the bootloader and the application.
The bootloader is stored in flash memory: 0x0800 0000 - 0x0803 FFFF
The application is saved in flash memory: 0x0804 0000 - 0x080F FFFF

I use an external Quad SPI Flash Memory (W25Q128FVSQ). I divided the RAM into 2 areas again.
 The bootloader gets 3MBytes (from 0x90000000 to 0x902EE000)
 The application gets 13MByte (from 0x902EE000 to 0x90FFFFFF).

I want to jump from the bootloader into the application. 
The process: 1. Jump from Boorloader into the application. A value is written into RAM.
 2. The function is called: NVIC_SystemReset()
 3. In Main() I check whether a value is stored in RAM. If there is a value in the RAM, I jump into my application

This process works perfectly and the application is also started. An error then occurs in HAL_Init().

 In debug mode the uC runs up to a certain point (until Breakpoint - picture below). Then the uC disappears somewhere. But no HardDefault Handler is called, otherwise there is an error.

 

Can someone help me solve the problem?

 

[Mohammad MORADI ESFAHANIASL]

Hello @PHolz.1 ,

To be honest, I'm not completely sure if I understood your problem or what exactly goes wrong in HAL_Init(). Could you please provide more information about the error? And are you initializing your hardware in the Bootloader and your application? Or is the initialization only in your application?

[PHolz.1]

Hi Mohammad,

Yes, I initialize in the bootloader and in the application because I have images in GFX Touch for the bootloader and the application.

The problem arises in the HAL_InitTick() function when Timer6 is started.

 

[Mohammad MORADI ESFAHANIASL]

Hello again @PHolz.1 ,

Sorry for the delay, So in this case the problem arises from the fact that you are initializing the peripherals twice. I suggest initializing it once or at least using HAL_TIM_Base_DeInit() first before initializing the timer again.

 

I hope this helps you.

[PHolz.1]

Hello, thanks for the suggestion. It fixed my error.

Hello,

thanks for the suggestion. It fixed my error. 

[Mohammad MORADI ESFAHANIASL]

Glad to hear! 
Would please select it as accepted solution?