Experimental Physics and Industrial Control System
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Andrew Johnson wrote:
Hi Liu Ping,
...
Read the target.txt file in your target/config/<bsp> directory, it should
document the window mappings. Look for the VME_A32_MSTR_BUS and
VME_A32_MSTR_SIZE variables; you may be able to just modify them and rebuild
the BSP, but don't just make the window as large as possible because that can
significantly slow down the startup of the vxWorks image at boot time and
also use up memory in MMU page tables.
If you are using a PPC cpu, then there are other ways to map 1GB of A32 space
without slowing down vxWorks or using MMU tables. If you are interested ask me.
Dirk
--
Dr. Dirk Zimoch
Paul Scherrer Institut, WBGB/006
5232 Villigen PSI, Switzerland
Phone +41 56 310 5182
- References:
- "A32 RegisterAddress error" about Hytec8401 liuping
- Re: "A32 RegisterAddress error" about Hytec8401 Michael Abbott
- Re: "A32 RegisterAddress error" about Hytec8401 Andrew Johnson
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ANJ, 31 Jan 2014 |
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