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Discussion Groups | Analog Devices DSPs | How to design large SDRAM board with tigersharc?
Technical discussions related to Analog Devices DSPs (including Blackfin, TigerSHARC, SHARC and ADSP-21xx DSPs).
How to design large SDRAM board with tigersharc? - Liang Xingdong - May 25 8:26:00 2004
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Dear members,
My question is how to use large SDRAM, for example 1GB, in tigersharc based
DSP board. It seems that Tigersharc only supports 64MB SDRAM at most.
Liang
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Re: How to design large SDRAM board with tigersharc? - Mike Rosing - May 25 13:22:00 2004
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On Tue, 25 May 2004, [gb2312] Liang Xingdong wrote: > Dear members, > My question is how to use large SDRAM, for example 1GB, in tigersharc >based DSP board. It seems that Tigersharc only supports 64MB SDRAM at >most. You will need to bank switch. Dedicate a section of external address space for control, and use that to select which bank of 64M you will talk to at a time. You'll need 1000/64 = 16 banks. A fast CPLD will work fine for this. Patience, persistence, truth, Dr. mike |
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