|
初学rtt, 在看串口的代码时, 发现配置中断方式以及打开串口 USART_Cmd(uart->uart_device, ENABLE); 等命令是在static rt_err_t stm32_configure(struct rt_serial_device *serial, struct serial_configure *cfg)执行的。
再查找, 确认 stm32_configure和其他几个函数组成了一个结构体
static const struct rt_uart_ops stm32_uart_ops =
{
stm32_configure,
stm32_control,
stm32_putc,
stm32_getc,
};
并在rt_hw_usart_init函数中, 指向了rt_serial_device的ops:
struct stm32_uart* uart;
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
RCC_Configuration();
GPIO_Configuration();
#ifdef RT_USING_UART1
uart = &uart1;
config.baud_rate = BAUD_RATE_115200;
serial1.ops = &stm32_uart_ops;
serial1.int_rx = &uart1_int_rx;
serial1.config = config;
NVIC_Configuration(&uart1);
/* register UART1 device */
rt_hw_serial_register(&serial1, "uart1",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM,
uart);
#endif /* RT_USING_UART1 */
可究竟是在哪里调用了这个函数呢?
|
|