gateway_mcu/CH32V303-FreeRTOS/README.md

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### 测试
串口中断发送通过测试
spi_flash读写通过测试
对智能模块通信串口,阻塞发送数据通过测试。
### 问题
##### 串口中断
25/02/24
在freerots环境下中断不生效
###### 解决
> 25/02/25
>
> 需要启动freerots任务
>
> 同时中断部分
>
> ```c
> void UART5_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
> ```
>
> 变为
>
> ```c
> void UART5_IRQHandler(void) __attribute__((interrupt()));
> ```
>
> 其他中断同上,由硬件压栈变为软件压栈