embedded - Jump to another application

Question

I want to write a bootloader for my stm32l4 mcu which (after pressing a button) jumps to another part of flash and run the app on that part. for application part I write a simple blinky and generate its BIN file and copy this bin file to address 0x0800 8000 of flash memory.

Now I do not know how can I jump to this address and run this blinky app.

would anyone help me?

best!

标签： embeddedstm32bootloader

Answer 1

至少有两种选择浮现在脑海中：

1. 使用函数指针：

       /* ... */
       void (*app)(void) = (void (*)(void))0x08008000;
       app();
   

2. 声明一个外部函数并使用您的链接描述文件解决它：

       /* ... */
       void app(void);
       app();
   

   如何在链接器脚本中定义地址取决于您的链接器。