I have been trying to use the freertos plugin for the IAR compiler, in particular to look at queues. Unfortunately it refuses to show the qeues, saying that “configQUEUE_REGISTRY_SIZE” must be greater than zero in FreeRTOSConfig.h . I have checked this and in fact “configQUEUE_REGISTRY_SIZE” is set to 8. I have confirmed this by looking at the compiler intermediate code. Any ideas? what does the plugin look for that is upsetting it?