STM32F030C6 IAP function APP interrupt vector table remapping-EEWORLD

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1. IAP interrupt vector table remapping

1.1、Coretext-M3与Coretext-M4：

SCB->VTOR = 0X08000000|0X20000;

__set_PRIMASK(0);

There is a vector table offset register VTOR (0xE000ED08) in the System Control Block. When the system generates an interrupt, the kernel uses the value of this register to find the address of the interrupt vector table and then execute the interrupt routine code.

The VTOR register of M3/M4 is also set to the default value of 0 at the beginning, but it is explicitly modified in the code after the program runs to the SystemInit() function.

1.2、Coretext-M0：

__enable_irq();

memcpy((void*)0x20000000, (void*)0x08000800, 0xB4);

RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);

SYSCFG_MemoryRemapConfig(SYSCFG_MemoryRemap_SRAM);

For M0, the address of the interrupt vector table is fixed at address 0x0000 0000

Keywords：STM32F030C6 Reference address：STM32F030C6 IAP function APP interrupt vector table remapping

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