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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-05-11 17:39:37 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-05-11 17:39:37 +0000 |
commit | ac7d5ef06a6d6e8d84abbd1f0b82162725f98326 (patch) | |
tree | 9304cf759a73f2a1c6fd3191948f00e870af3787 /c/src/lib/libbsp/README | |
download | rtems-ac7d5ef06a6d6e8d84abbd1f0b82162725f98326.tar.bz2 |
Initial revision
Diffstat (limited to 'c/src/lib/libbsp/README')
-rw-r--r-- | c/src/lib/libbsp/README | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/README b/c/src/lib/libbsp/README new file mode 100644 index 0000000000..c3b978b6cb --- /dev/null +++ b/c/src/lib/libbsp/README @@ -0,0 +1,46 @@ +# +# $Id$ +# + +Board Support Package library + +This directory contains the source for the libbsp.a library. +For each supported board $(RTEMS_BSP) there is a standard +set of functions which must be provided in the BSP: + + + start up initialization + + exit support + + set vector + + console IO support + + drivers + +In addition, the BSP also determines the memory usage by providing +any necessary linker scripts. + +There are also "generic" drivers in this directory. Currently +they are shmdr and stubdr. + +Some of the supplied generic drivers (for example, shared memory) require +target board specific support routines. + +NOTE: The library libbsp.a is actually built by $(RTEMS_BSP)/wrapup/Makefile. + +To execute all of the test in the RTEMS Tests Suites the following +device drivers must be supplied: + + + Clock Tick + + IO Driver Support + + Timer + + Shared Memory Driver Support + +The Timer Driver is used only by the Timing Test Suite (c/src/tests/tmtests/*). +These tests are used to generate the execution times for RTEMS found in the +flyers. It is recommended that these tests be run to verify a port to a new +CPU or with a newly developed BSP. Looking at the times as compared to a +known CPU and target can yield insights into potential performance problems +in either the port, the BSP, or the target hardware. + +The Shared Memory Support is only required to execute the Multiprocessor +Test Suite (c/src/tests/mptests/*). Multiprocessing is not a required part +of a BSP. + |