OTA Reset Manager is not jumping to user application

[TGats.2]

Hi

I'm trying to enable OTA Service on my device with the BlueNRG2 Chip.

I use the Lower Application Scheme. Therefore I flash the BLE_OTA_ResetManager at the flash beginn at 0x10040000. (I did a mass erase before that). I didn't modify the OTA ResetManager application, I took it from the BlueNrg-1.2 DK 3.2.1 example project.

Then I flash the user application with enabled OTA service at 0x10040800 as described in the documentation. I tried it also with the given example projects BLE_Chat or BLE_Beacon, but the Reset manager is never jumping to the application.

I can see that the reset manager reads correctly the AA5555AA tag at the correct location and get therefore the correct application to jump. But after the Jump_to_Application() call, it seems that it falls into a hard fault and makes then reset. And this will then happen in an endloos loop.

Do I missunderstand something or what is wrong with my code/approach?

Many thanks for every hint!

Code of the main function of the OTA_Reset_manager:

int main(void) 
{
 pFunction Jump_To_Application;
 uint32_t JumpAddress, appAddress;
 
 /* Identifies the valid application where to jump based on the OTA application validity tags values placed on
 reserved vector table entry: OTA_TAG_VECTOR_TABLE_ENTRY_INDEX */
 appAddress = OTA_Check_Application_Tags_Value();
 
 if (appAddress == 0) {
 /* This case indicates that no valida application is present and normally should not happen */
 while (1);
 }
 
 /* Jump to user application */
 JumpAddress = *(__IO uint32_t*) (appAddress + 4);
 Jump_To_Application = (pFunction) JumpAddress;
 /* Initialize user application's Stack Pointer */
 __set_MSP(*(__IO uint32_t*) appAddress);
 Jump_To_Application();
 
 /* Infinite loop */
 while (1)
 {
 }
}

Many thanks.

Tobias

[TGats.2]

My mapper file had an issue, it linked the application to the same address as the reset manager was.

Issue can be closed.

Many thanks for your attention.