cc2640 UART_write阻塞条件

user4090300

Other Parts Discussed in Thread: CC2640

cc2640中int UART_write(UART_Handle handle, const void *buffer, size_t size)这个函数在什么条件下会阻塞，导致无法返回。现在遇到的问题是：uart连接了外设，连接外设单独测试的时候串口收发正常，但是放到应用程序中会出现UART_write()阻塞无法返回的情况(外设状态这些肯定没问题)，请教一下会有哪些原因导致发送阻塞呢。

3 年多前

0 Kevin Qiu1 3 年多前

TI__Guru* 82220 points

UART_write() writes data from a memory buffer to the UART interface. The source is specified by buffer and the number of bytes to write is given by size.

In UART_MODE_BLOCKING, UART_write() blocks task execution until all the data in buffer has been written.