MVME147 port for TNI - Telecom Bretagne by Dominique LE CAMPION (Domin.nosp@m.ique.nosp@m..LECA.nosp@m.MPIO.nosp@m.N@ens.nosp@m.t-br.nosp@m.etagn.nosp@m.e.fr) May 1996

This bsp is essentially based on the mvme136 bsp.

Summary

• include
  • bsp.h Peripheral Channel Controller memory mapping Z8530 memory mapping
• startup
  • bspstart.c main () setup for VME roundrobin mode setup for the PCC interrupt vector base
  • bspclean.c bsp_cleanup () disable timer 1 & 2 interruptions
  • linkcmds set the RAM start (0x5000) and size (4Meg - 0x5000)
  • setvec.c unchanged
  • sbrk.c unchanged
• console
  • console.c taken from the dmv152 bsp (Zilog Z8530) with no modification
• clock
  • ckinit.c entirely rewritten for the PCC tick timer 2
• timer
  • timerisr.s and timer.c entirely rewritten for the PCC tick timer 1 now gives results un 6.25 us units (mininum timer delay, suprising big grain)
• times
  • updated results for the mvme147 (beware of the 6.25 us grain)
• Makefiles
  • compilation of shmsupp simply removed

To be done:

• add VMEchip memory mapping to include/bsp.h
• update the overheads in coverhead.h
• add support for serila ports 2,3 and 4.

Other notes:

• There is no MP support (no more shmsupp) because I have no experience of the VME bus. The mvme136 shared memory support does not seem applicable on the VMEchip of the mvme147, so I don't know where to start. Suggestions are welcome.
• All the timing tests and sp tests have been run.

Future work

• Add gdb serial remote support.
• Shared memory support (I don't really need it, but I can do it if it's simple).
• Message passing on VME bus, with Ada 95 annex E (distributed systems) in mind.