[ECOS] Adder II (MPC852T), issue while migrating to 32MB memory

Gary Thomas gary@mlbassoc.com
Wed Jul 12 21:02:00 GMT 2006


Andre-John Mas wrote:
> Hi,
> 
> We have an Adder II (MPC852T) board and are in the process of upgrading from 16MB memory to 32MB memory, using a single chip. 
> 
> Running our 16MB aware RedBoot on this new setup we had no issues. Now we modified the files in:
> 
>    \packages\hal\powerpc\adder\v2_0_51\include\pkgconf\
> 
> such that values 'CYGMEM_REGION_ram_SIZE' (in .h files) and 'MEMORY/ram' (in .ldi files) now have the value 0x1800000. In adder.S the 'onboard  DRAM' section is:
> 
>         /* ONBOARD DRAM */
>         lwi     r3,0x00000081   # 32-bit, UPMA
>         lwi     r5,0xFF000E00
                      -should be-
                      0xFE000E00

You need to change this - it adjusts the size of CS1 (the DRAM)

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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