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Re: Bug for Cirrus Logic EDB7XXX??



On 29-May-2001 Jonathan Larmour wrote:
> honda@itri.org.tw wrote:
>> 
>> So, suppose I choose the EP7209 as the processor, the symbol should be
>> declared, am I right?
>> I've done the following test,
>> 
>>      1. choose EP7209 as the processor for EDB7xxxx,
>>      2. add "#error EP7209" under "#ifdef CYGPKG_HAL_ARM_EDB7209"
>>      3. compile the project.
>> But it never produce the error.
>> Also, I check the system.h that generated by the ConfigTool, only
>> CYGPKG_HAL_ARM_EDB7xxx is defined.
> 
> Indeed this symbol isn't defined by the configuration tool. It should be
>#ifdef CYGHWR_HAL_ARM_EDB7XXX_VARIANT_EP7209
> 
> But we may have a terminology problem here. We previously somehow
> understood that the EP7209 had no DRAM controller. But according to
> http://www.cirrus.com/design/products/overview/index.cfm?DivisionID=6&SubdivisionID=28&ProductID=1
> 09
> it clearly does. Gary, comments?

I don't see any mention of a DRAM controller on that page.  It does
mention that it has a memory controller for up to six memory segments
which support ROM, FLash and SRAM, but no DRAM.

AFAIK, the 7209 is a DRAM-less version of the 7212.


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