ISSUE: STM32F7 Custom Bootloader - Main Application Not Running After Jump
Details:
Bootloader Memory Definition:
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 320K
FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 1024K
QUADSPI (r) : ORIGIN = 0x90000000, LENGTH = 16M
Application Memory Definition:
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 320K
FLASH (rx) : ORIGIN = 0x8020000, LENGTH = 896K
QUADSPI (r) : ORIGIN = 0x90000000, LENGTH = 16M
Validation Points:
Bootloader erase & write operations are working correctly.
Custom bootloader successfully writes the application code to both internal and external segments.
A test application that prints text ("I am application") works properly after jumping from the bootloader.
Debug points :
1 > memory utilization by main application
RAM : ORIGIN = 0x20000000, utilization = 320 K
FLASH : ORIGIN = 0x8020000, utilization = 896 K
QUADSPI : ORIGIN = 0x90000000, utilization = 5.18 M
2 > Jump steps after writing application (by custom bootloader)
/*********************************************************************************************
if(gParsePacketData.data[0] == BOOT_STATUS)
{
#define APP_ADDRESS 0x08020000
typedef void (*pFunction)(void);
pFunction JumpToApplication;
uint32_t JumpAddress;
int Temp = 0 ;
vc_prepare_packet_and_send(&huart6,FEEDBACK_COMMAND,FEEDBACK_SUCCESS,&Temp,sizeof(Temp));
// Disable interrupts
__disable_irq();
// Deinitialize peripherals and clocks if needed
// Set vector table to application address
SCB->VTOR = APP_ADDRESS;
// Read the application's stack pointer address
__set_MSP(*(volatile uint32_t*)APP_ADDRESS);
// Get the application's reset vector (entry point)
JumpAddress = *(volatile uint32_t*) (APP_ADDRESS + 4);
JumpToApplication = (pFunction) JumpAddress;
// Enable interrupts (optional, the application should handle it)
__enable_irq();
// Jump to application
JumpToApplication();
/**********************************************************************************/
We would be grateful for any guidance or suggestions you can provide.
