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<== Date ==> <== Thread ==>

Subject: MVME5500 and turbo-pmac-vme-ultralite
From: zzh <zhangzhaohong@sinap.ac.cn>
To: <tech-talk@aps.anl.gov>
Cc: zhangzhaohong@sinap.ac.cn
Date: Wed, 7 Dec 2016 13:03:58 +0800

Hi all,

 

The pmac vme card has a mailbox interface without DPRAM.

The base address of the card is 0x7FA000, with A24 addressing mode.

 

The PCI-VME address map is as:

A24 master local address: 0xeff00000 to 0xf0efffff

Corresponding vme bus address: 0xff000000 to 0xffffffff

 

So the translated 5500 host address of the mailbox register3 is 0xeff00000 + 0x7fa000 + 0x5 = 0xf06fa005.

 

I try to get the value of register3 using the following _expression_ under VxWorks.

         mbx = ‘a’

         mbxAddr = 0xf06fa005

         mbx = (char)*mbxAddr

And the 5500 and pmac will both crash immediately.

 

When I use the tpma-11 epics driver to send command to the pmac, the same crash also hanppens.

 

Does anyone has experiences with the 5500+pmac-vme-mailbox?

 

Zhaohong

SSRF,China


Replies:
Re: MVME5500 and turbo-pmac-vme-ultralite Ron Sluiter

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