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I use a LCD 1261B and I don't know why I can both read and write to the LCD in ASM but I can only write but not read from LCD(even I set bit to make the pin ready to read).Do any of you have any idea or solution to my problem?.
I have a strange feeling of deja-vu! Have you not asked this question before? You could at least post your code that is giving trouble. Have you tried looking at the compiler listing and comparing it with the asm code?