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problem when writing data on emifa 8 bit from C6748 on OMAP L138 LCDK board

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Hi there,

Did anyone have this problem writing data on 8 bit  EMIFA bus from C6748 ( on OMAPL138 LCDK board)?

My emifa bus is using CS4. Basically, when writing data from 0x01 to 0xff in normal mode , I don't see correct data on my  oscilloscope. see picture below.  My aim is to connect my LCDK to a FPAG.

As I see, EMA_CS4 pin, OEn pin and WE pin work correctly. I also checked EMA_A/ BA1 / BA0  bus by swapping data pin and they appearred to work correctlyas well.

I cannot find any problems in configuration of EMIFA CS4 in 8 Bit. Can anyone help me here? 


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