单片机程序远程升级OTA底层框架BUG,及解决方案

4,系统定时器BUG

如果BootLoader里面使用了系统定时器中断,在跳转的时候不仅需要

SysTick->CTRL=0;

还需要

SysTick->VAL=0x00;

3,日志打印冲突导致死机BUG; BootLoader关闭中断BUG

屏蔽两句日志打印

在BootLoader里面把串口所有中断关闭

USART_ITConfig(USART1, USART_IT_RXNE, DISABLE);
USART_ITConfig(USART1, USART_IT_TXE, DISABLE);
USART_ITConfig(USART1, USART_IT_TC, DISABLE);
USART_ITConfig(USART1, USART_IT_IDLE, DISABLE);

USART_ITConfig(USART2, USART_IT_RXNE, DISABLE);
USART_ITConfig(USART2, USART_IT_TXE, DISABLE);
USART_ITConfig(USART2, USART_IT_TC, DISABLE);
USART_ITConfig(USART2, USART_IT_IDLE, DISABLE);

USART_Cmd(USART1, DISABLE);
USART_Cmd(USART2, DISABLE);