> There is no vTaskDelay() in my Idle task, but the __wfi instruction. Schould > wait for the next tick interrupt
Good - the idle task must *never* block. Which task would run if the idle task was blocked? Later versions of FreeRTOS include a tickless idle mode that stops the tick interrupt and sleeps in the idle task, but that is very different to blocking the idle task because when the MCU is sleeping nothing is executing. > To protect the TX function I use a critical section so one task can complete > the transmit before a new one can do it. Does the Tx function use FreeRTOS API calls? If so then you can't use a a critical section. Use a mutex instead. Regards, Richard. + http://www.FreeRTOS.org Designed for microcontrollers. More than 7000 downloads per month. + http://www.FreeRTOS.org/plus Trace, safety certification, UDP/IP, TCP/IP, training, and more... _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
