RTEMS 4.9.2 On-Line Library

Shared Memory Support Driver Installing the MPCI ISR

BSP and Device Driver Development Guide

16.3: Installing the MPCI ISR

The Shm_setvec is invoked by the portable portion of the shared memory to install the interrupt service routine that is invoked when an incoming message is announced. Some target boards support an interprocessor interrupt or mailbox scheme and this is where the ISR for that interrupt would be installed.

On an interrupt driven node, this routine would be implemented as follows:

void Shm_setvec( void )
{
  install the interprocessor communications ISR
}

On a polled node, this routine would be empty.

BSP and Device Driver Development Guide