zephyr

History

Anas Nashif dcf046c72d rename basic_atom with minnowboard Use a real board name that can run this kernel instead of a generic name. Basic functionality exits on this board with Zephyr. Setup of the board is mostly similar to what we have in galileo (EFI based) Change-Id: Ic8554f26dcac0dbbbb6d35d863482f6207dc63c5 Signed-off-by: Anas Nashif <anas.nashif@intel.com>		2016-02-05 20:25:11 -05:00
..
ia32	kernel: kconfig: remove dependencies on EXPERIMENTAL	2016-02-05 20:24:20 -05:00
ia32_pci	kernel: kconfig: remove dependencies on EXPERIMENTAL	2016-02-05 20:24:20 -05:00
quark_d2000	sanity: make boot_time test work for Quark SE and D2000	2016-02-05 20:24:49 -05:00
quark_se	sanity: make boot_time test work for Quark SE and D2000	2016-02-05 20:24:49 -05:00
src	use zephyr.h instead of microkernel/nanokernel.h	2016-02-05 20:24:35 -05:00
Makefile	rename basic_atom with minnowboard	2016-02-05 20:25:11 -05:00
prj.mdef	Rename VPF files to use MDEF file extension	2016-02-05 20:14:15 -05:00
README.txt	Update Title in sample project README.txt files	2016-02-05 20:15:21 -05:00
testcase.ini	initial commit for next-gen sanity checks	2016-02-05 20:14:42 -05:00

README.txt

Title: Boot Time Measurement

Description:

BootTime measures the time:
   a) from system reset to kernel start (crt0.s's __start)
   b) from kernel start to begin of main()
   c) from kernel start to begin of first task
   d) from kernel start to when microkernel's main task goes immediately idle

The project can be built using one of the following three configurations:

best
-------
 - Disables most features
 - Provides best case boot measurement

default
-------
 - Default configuration options
 - Provides typical boot measurement

worst
-------
 - Enables most features.
 - Provides worst case boot measurement

--------------------------------------------------------------------------------

Building and Running Project:

This microkernel project outputs to the console.  It can be built and executed
on QEMU in three possibile configurations as follows:

    make BOOTTIME_QUALIFIER=best qemu

    make BOOTTIME_QUALIFIER=default qemu

    make BOOTTIME_QUALIFIER=worst qemu

--------------------------------------------------------------------------------

Troubleshooting:

Problems caused by out-dated project information can be addressed by
issuing one of the following commands then rebuilding the project:

    make clean          # discard results of previous builds
                        # but keep existing configuration info
or
    make pristine       # discard results of previous builds
                        # and restore pre-defined configuration info

--------------------------------------------------------------------------------

Sample Output:

tc_start() - Boot Time Measurement
MicroKernel Boot Result: Clock Frequency: 20 MHz
__start       : 377787 cycles, 18889 us
_start->main(): 3915 cycles, 195 us
_start->task  : 5898 cycles, 294 us
_start->idle  : 6399 cycles, 319 us
Boot Time Measurement finished
===================================================================
PASS - bootTimeTask.
===================================================================
PROJECT EXECUTION SUCCESSFUL