Re: 128M sdram configuration

Tech-Archive recommends: Fix windows errors by optimizing your registry

It looks good to me, and actually, you could have the

orr r3, r3, #MDCNFG_DE1

statement just inserted to the following of

orr r3, r3, #MDCNFG_DE0

So that you don't have to access MDCNFG register twice.
And for the registry settings...
A thumb of the rule is when ever you modify the address mapping of your
peripheral address space, you should make a corresponding change in your
platform.reg.


"blueYork" <yaoronger@xxxxxxx> wrote in message
news:a519af84-9de8-4465-842e-9ee28b5c714a@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
yes,u are right,i just use pxa255 for the mcu.
follow your advice,i found the file fwXsc1.s u mentioned,
and modified the file below:
; get memory controller base address;
ldr r1, =MEMC_BASE_PHYSICAL
; fetch current mdcnfg value
ldr r3, [r1, #MDCNFG_OFFSET]
; enable sdram bank 0 if installed (must do for any populated bank)
orr r3, r3, #MDCNFG_DE0
; write back mdcnfg, enabling the sdram bank(s)
str r3, [r1, #MDCNFG_OFFSET]

; blue add
ldr r1, =MEMC_BASE_PHYSICAL
ldr r3, [r1, #MDCNFG_OFFSET]
orr r3, r3, #MDCNFG_DE1
str r3, [r1, #MDCNFG_OFFSET]
;add above

am I right?
when i download the NK.bin,it still hang "OEMAddressTable = 800b9ef4"
there
besides modify above,should i modify platform.reg?
since there are some hardcoded address registry settings for the
serial ports,
such as
;-------------------------------------------------------------
; Serial2 : It is UART_A
;-------------------------------------------------------------
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial2]
"Dll"="my_serial.Dll"
"IoBase"=dword:bcc00000 ;UART_A_BASE_U_VIRTUAL
"IoLen"=dword:24

anyway,thank u a lot for your suggestion.


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