【正文】 R1LB MOVWF TMR1L 。TMR1寄存器低字節(jié)賦初值 MOVLW TMR1HB MOVWF TMR1H 。TMR1寄存器高字節(jié)賦初值 BSF T1CON,0 。啟動(dòng)TMR1定時(shí) MOVLW 04H MOVWF SELECT_COUNT 。顯示通道寄存器賦初值MAIN_LOOP GOTO MAIN_LOOP。**************SPI發(fā)送完成查詢子程序****************SPI_TX MOVWF SSPBUF BCF STATUS,6SPI_LOOP BSF STATUS,5 BTFSS SSPSTAT,0 。查詢發(fā)送受否完成 GOTO SPI_LOOP 。否，繼續(xù)查詢 BCF STATUS,5 。是，選擇BANK0 MOVF SSPBUF 。將緩沖寄存器的數(shù)據(jù)讀出，不管數(shù)據(jù)是否有用 RETURN 。子程序返回。***************數(shù)據(jù)轉(zhuǎn)換子程序****************ADRES_CON。================LED1賦值===================== MOVF HEIGHT,0 CALL LED1_CON MOVWF LED1。===============LED2賦值====================== MOVF HEIGHT,0 CALL LED2_CON MOVWF LED2。===============LED3賦值====================== MOVF HEIGHT,0 CALL LED3_CON MOVWF LED3。===============LED4賦值====================== MOVF HEIGHT,0 CALL LED4_CON MOVWF LED4。===============SEG1賦值===================== MOVF HEIGHT,0 CALL SEG1_CON MOVWF SEG1。===============SEG2賦值===================== MOVF HEIGHT,0 CALL SEG2_CON MOVWF SEG2。===============SEG3賦值===================== MOVF HEIGHT,0 CALL SEG3_CON MOVWF SEG3。===============SEG4賦值===================== MOVF HEIGHT,0 CALL SEG4_CON MOVWF SEG4 RETURN。===============LED1查表子程序===============LED1_CON ADDWF PCL,1 RETLW 0F0H RETLW 0E1H RETLW 0C3H RETLW 87H RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH。===============LED2查表子程序===============LED2_CON ADDWF PCL,1 RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0E1H RETLW 0C3H RETLW 87H RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH。===============LED3查表子程序===============LED3_CON ADDWF PCL,1 RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0E1H RETLW 0C3H RETLW 87H RETLW 0FH RETLW 0FH RETLW 0FH RETLW 0FH。===============LED4查表子程序================LED4_CON ADDWF PCL,1 RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0F0H RETLW 0E1H RETLW 0C3H RETLW 87H。===============SEG1查表子程序================SEG1_CON ADDWF PCL,1 RETLW 40H RETLW 40H RETLW 40H RETLW 40H RETLW 40H RETLW 40H RETLW 40H RETLW 00H RETLW 00H RETLW 00H RETLW 00H RETLW 00H RETLW 00H RETLW 00H RETLW 00H RETLW 00H。===============SEG2查表子程序================SEG2_CON ADDWF PCL,1 RETLW 40H RETLW 5BH RETLW 06H RETLW 06H RETLW 00H RETLW 00H RETLW 00H RETLW 00H RETLW 00H RETLW 00H RETLW 00H RETLW 00H RETLW 00H RETLW 06H RETLW 06H RETLW 5BH。===============SEG3查表子程序================SEG3_CON ADDWF PCL,1 RETLW 40H RETLW 66H RETLW 7DH RETLW 5BH RETLW 7FH RETLW 6DH RETLW 5BH RETLW 06H RETLW 00H RETLW 06H RETLW 5BH RETLW 6DH RETLW 7FH RETLW 5BH RETLW 7DH RETLW 66H。===============SEG4查表子程序================SEG4_CON ADDWF PCL,1 RETLW 40H RETLW 3FH RETLW 3FH RETLW 3FH RETLW 3FH RETLW 3FH RETLW 6DH RETLW 3FH RETLW 3FH RETLW 3FH RETLW 6DH RETLW 3FH RETLW 3FH RETLW 3FH RETLW 3FH RETLW 3FH