In order to explore the possibilities of the USB on a FRDM-MKL27, I have used the dev_cdc_virtual_com (virtual_com) example using a Keil development suite. The example seems to be working though I experience problems expanding the number of tasks running. I have added a simple task that only is to toggle the LED and then wait.
Both tasks are executed during initialization before the OSA_Start is executed. Unfortunately only the first of the tasks is able to run - either the USB port OR the LED flashing. How to fix the minor expansion of the default example?