Page History

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• Command line is in first argument
• Disable interrupts
• Store command line
• Call bsp_start()
• Determine RTEMS work area and heap
• Initialize RTEMS data structures
• Initialize the C library
• Call bsp_pretasking_hook()
• Optional: Enable RTEMS debugging capabilities
• RTEMS initialization before loading device drivers
• Call bsp_predriver_hook()
• Initialize device drivers
• Call bsp_postdriver_hook()
• Start multitasking
  • Thread with entry point Init runs
  • Not clear how this returns. Perhaps when the last task is deleted?
• Call bsp_cleanup()
• Return to start code
  • Not clear what's in the lr at this point, i.e., where do we return to?

RTEMS BSP

• bsp_start()
  • Set up default character output function
  • Get CPU type and revision cached
  • Initialize device driver parameters
    • Rate of timer source for clock.c
    • bsp_timer_internal_clock
    • bsp_timer_average_overhead
    • bsp_timer_least_valid
  • Initialize default raw exception handlers
  • Call app_bsp_start()
• bsp_pretasking_hook()
  • Call app_bsp_pretasking_hook()
• bsp_predriver_hook()
  • Call app_bsp_predriver_hook()
• bsp_postdriver_hook()
  • Call rtems_libio_supp_helper() to open /dev/console for stdin, stdout and stderr, if it exists
  • Call app_bsp_postdriver_hook()
• bsp_cleanup()
  • Call app_bsp_cleanup()

RCE BSP

• app_bsp_start()
  • Replace the character output function with one that writes to the syslog
• app_bsp_pretasking_hook()
  • Initialize RceDebug
  • Initialize RcePic
• app_bsp_predriver_hook()
  • Initialize RceEthernet
  • Initialize RceBsdnet
• app_bsp_postdriver_hook()
• app_bsp_cleanup()