7528-2l.asm

ST7529液晶驱动 The ST7529 is a driver & controller LSI for 32 gray scale graphic dot-matrix liquid cryst

;%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
;%  Product Title  : ST7528 132x128 Mode FOR 2-LINE INTERFACE (I2C)      %
;%                   ( LCD MODULE 128 x 128 SPRD)                        %
;%  Start  Date    : 05/22/2003                                          %
;%  Finish Date    :                                                     %
;%  Author         : kevin_su                                            %
;%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

;;~~~~~~~~~~~~ I/O BIT MAP ~~~~~~~~~~~~~~~~~~~~~~~~
;; VSS                                  ; PIN 1
;; VDD                                  ; PIN 2
;; NC                                   ; PIN 3
A0              REG     P3.0            ; PIN 4
RW              REG     P3.1            ; PIN 5 (WR)
E               REG     P3.2            ; PIN 6 (RD)
DB0             REG     P1.0            ; PIN 7
DB1             REG     P1.1            ; PIN 8
DB2             REG     P1.2            ; PIN 9
DB3             REG     P1.3            ; PIN 10
DB4             REG     P1.4            ; PIN 11
DB5             REG     P1.5            ; PIN 12
SDA             REG     P1.6            ; SDA   (I2C)
SCL             REG     P1.7            ; SCL   (I2C)
CS1             REG     P3.3            ; PIN 15
RES             REG     P3.5            ; PIN 16
;---------------------------------------;

;;~~~~~~~~~~~~~ DATA DEFINE ~~~~~~~~~~~~~~~~~~~~~~~~
STACK           EQU     6FH

;;~~~~~~~~~~~~~ VECTOR DEFINE ~~~~~~~~~~~~~~~~~~~~~~
                ORG     0000H           ; RESET VECTOR
                LJMP    SYS_RESET       ;
                ORG     0003H           ; INT0 VECTOR
                RETI                    ;
                ORG     000BH           ; TIMER0 VECTOR
                RETI                    ;
                ORG     0013H           ; INT1 VECTOR
                RETI                    ;
                ORG     001BH           ; TIMER1 VECTOR
                RETI                    ;
                ORG     0023H           ; RI/TI VECTOR
                RETI                    ;
                ORG     002BH           ; TIMER2 VECTOR
                RETI                    ;
;;~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
;
;#########################################################################
;#####                    8051 SYSTEM Reset program start            #####
;#########################################################################
SYS_RESET:
                MOV     SP,#STACK       ; INITIAL STACK POINTER
                MOV     IE,#00H         ;い耞璓