I am maintaining a 10 yo project which uses ARM9 based STR912 and CMX-RTX as its RTOS.

The CMX-RTX manual is basically an extraction of the header files without much details. There is even not any introduction of the RTOS methodology at all. It lists…

hellow

     I am reading the book  “Cortex  -M3 Embedded Software Development” on page of 3,chapter 1.1 Nested Vectored Interrupt Controller (NVIC),

i don not understand  the means of tail-chaining of interrupts .In the sentence of  "The NVIC also…