Hi,

This is to seek help on the problem analysis of during porting QNX to DMP Vortex86SX board, the steps are:

1) A nutrino host with QNX Momentics Suite 6.3.2
2) Download and compile x86 BSP 6.3.2, and copy "startup-bios" to 
    "/usr/qnx632/target/qnx6/x86/boot/sys" 
3) Download micro kernel according to the following link

http://community.qnx.com/sf/wiki/do/viewPage/projects.core_os/wiki/HomePage

4)  Add debug message to "services\system\ker\nano_clock.c" at the beginning of "clock_handler(...)" as

     static int once_flag = 0;
     if (once_flag == 0)
    {
        once_flag =  once_flag + 1;
        kprintf("Enter clock_handler\n");
    }

then compile, and copy "procnto" to "/usr/qnx632/target/qnx6/x86/boot/sys"

5) Make a bootable floppy disk as the following (simple.bld is attached)

    mkifs -v simple.bld simple.ifs
    dinit -f simple.ifs /dev/fd0

6) Boot the floppy disk on the desktop, it can show all messages as expected.
    "Enter clock_handler" is shown, and keyboard is working.

7) Boot the floppy disk on Vortex86SX
   Noticed that "Enter clock_handler" is not shown, and keyboard does not work.

8) Try to add some debug messages to show IMR/IRR/ISR values of the 
master interrupt controller after the micro kernel has been started up.
    
     The results are:  IMR   0xfa
                             IRR   0x01
                             ISR   0x80

     On the desktop PC, the values are 0xfa, 0x00, 0x00

Questions are:
1) What are the possible reasons for unable to enter clock handler?
     Vortex86SX is supposed to be a 486 compatible SOC with 300M frequency.

2) Where are the places I should check?

Thanks a lot
Weiming