* 重现步骤: * 版本 rt-thread v4.1.0-beta * 启用IIC * 测试BSP stm32f407-atk-explorer * 编译器 GCC v10.2.1 * 错误信息 ``` Function[rt_sem_take] shall not be used before scheduler start (0) assertion failed at function:rt_sem_take, line number:489 ``` * BUG定位 * 跟踪到出错点在 https://github.com/RT-Thread/rt-thread/blob/a0fadd4e5a01f705328a73194d39f383539b8927/components/drivers/i2c/i2c_core.c#L33 * 注释该行后正常