Disable DDC SRAM

healy_yang · ‎2004-04-24

Posted on April 24, 2004 at 10:16

Disable DDC SRAM

healy_yang · ‎2011-05-17

Posted on May 17, 2011 at 12:00

Hi,

I try to disable the DDC SRAM on uPSD3234 by follwing code in STARTU32.A51

DDCCON DATA 0D7H

S1CON DATA 0D8H

:

MOV A, 0 ; Disable DDC and DDC XRAM out of addr space

MOV DDCCON, A

MOV S1CON, A ; Disable DDC I2C as well

:

But it seem that the DDC SRAM still conflict with our FLASH chip with address 0x00ff~0xffff.

Can you give me any ideal about that?

Thank for your help.

With Regards.

Healy

sjo · ‎2011-05-17

Posted on May 17, 2011 at 12:00

The asm is incorrect, it should be mov A, #0

Regards

sjo