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lcd12864液晶显示驱动实

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RS:D/I=H,表示DB7～DB0为显示数据

D/I=L,表示DB7～DB0为显示指令数据

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R/W:R/W=H,E=H数据被读到DB7～DB0

R/W=L,E信号下降沿，DDRAM数据被写到IR或DR

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E:R/W=L,E信号下降沿锁存DB7～DB0

R/W=H,E=H DDRAM数据读到DB7～DB0

---------------------------------------------------*/-/*------------------------------------------ Lcd12864 LCD drive real--------------------------------------------------------------------------------------------- RS: D/I = H, DB7 ~ DB0 DB7 ~ DB0 to display data D/I = L, said instruction data----------------------------------------------- R/W: R/W = H, E = H data is read DB7 ~ DB0 R/W = L, E falling edge of the signal, DDRAM The data is written to the IR or DR---------------------------------------------------- E: R/W = L, E signal is latched on the falling edge of DB7 ~ DB0 R/W = H, E = H DDRAM data read DB7 ~ DB0---------------------------------------------------* /