source: rtems/cpukit/score/cpu/h8300/README @ d0279f6e

4.9
Last change on this file since d0279f6e was 5532553, checked in by Joel Sherrill <joel.sherrill@…>, on 06/29/00 at 23:00:48

This is the initial addition of the port of RTEMS to the
Hitachi H8 family. This port was done by Philip Quaife
<philip@…> of Q Solutions and sponsored by
Comnet Technologies Ltd. The port was done based on RTEMS 3.5.1
to a Hitach H8300H. The port was updated to RTEMS 4.5 style
Makefiles/configure by Joel Sherrill <joel@…>.
While doing this Joel added support for the h8300-rtems to
binutils, gcc, newlib, and gdb.

NOTE: Philip submitted a BSP for a Hitachi evaluation board
which is being merged as a separate entity.
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1#
2#  $Id$
3#
4
5 
6This port was done by Philip Quaife <philip@qs.co.nz> of Q Solutions
7using RTEMS 3.5.1 under DOS and Hiview.   Philip used an H8300H
8to develop and test this port.
9
10It was updated to 4.5 and merged into the main development trunk
11by Joel Sherrill <joel@OARcorp.com>.  As part of the merger, the
12port was made to conditionally compile for the H8, H8300H, and H8300S
13series.
14
15The status of each CPU subfamily is as follows.
16
17H8  - Although RTEMS compiles with for these CPUs, it does not
18      truly support them.  All code that will not work on these
19      CPUs is conditionally disabled.  These CPUs have a 16-bit
20      address space.  Thus although a port is technically
21      feasible, some work will to be performed on RTEMS to
22      further minimize its footprint and address pointer
23      manipulation issues.
24
25H8H - Port was developed on this class of H8 so there should be
26      no problems.
27
28H8S - Port should work on this class of H8 but it is untested.
29
30--joel
3128 June 2000
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