Advertising lights left shift to the right microcontroller program
The eight light emitting diodes L1 L8 respectively connected to the P1.0 MCU and P1.7 interface, the output is "0", the LED light at the beginning of P1.0 - P1.1 - P1.2 - P1.3 -, - P1.7 - P1.6 - P1.0, and bright, repeat, this is a compilation of crystal 12M:: ORG 0 START: MOV R2. #8 MOV A, #0FEH SETB C LOOP: MOV P1, A LCALL DELAY RLC A DJNZ R2, LOOP MOV R2, #8 LOOP1: MOV P1, A LCALL DELAY RRC A DJNZ R2, LOOP1 LJMP START DELAY: MOV R5, D1: MOV R6, #20 #20; D2: MOV R7, #248 DJNZ R7, $DJNZ R6, D2 DJNZ R5 D1 RET END, of course, also can use C language to write: #include #include // #define uint unsigned int contains the displacement function of #define uchar unsigned char uchar temp I; / / data type unsigned char 8 void delay (uint); void (main) {temp=0xfe; P1=temp; while (1) {fo R (i=0; i<8; i++) {temp=_cror_ (temp, 1); / / the right one delay (800); / / set the delay time P1=temp;} for (i=0; i<8; i++) {temp=_crol_ (temp, 1); / / left a delay (800); / / set the delay time P1=temp;}}} void (delay uint z) uint y {/ / delay procedures; (for; z>0; z--) for (y=248; y>0; y--;})
The eight light emitting diodes L1 L8 respectively connected to the P1.0 MCU and P1.7 interface, the output is "0", the LED light at the beginning of P1.0 - P1.1 - P1.2 - P1.3 -, - P1.7 - P1.6 - P1.0, and bright, repeat, this is a compilation of crystal 12M:: ORG 0 START: MOV R2. #8 MOV A, #0FEH SETB C LOOP: MOV P1, A LCALL DELAY RLC A DJNZ R2, LOOP MOV R2, #8 LOOP1: MOV P1, A LCALL DELAY RRC A DJNZ R2, LOOP1 LJMP START DELAY: MOV R5, D1: MOV R6, #20 #20; D2: MOV R7, #248 DJNZ R7, $DJNZ R6, D2 DJNZ R5 D1 RET END, of course, also can use C language to write: #include #include // #define uint unsigned int contains the displacement function of #define uchar unsigned char uchar temp I; / / data type unsigned char 8 void delay (uint); void (main) {temp=0xfe; P1=temp; while (1) {fo R (i=0; i<8; i++) {temp=_cror_ (temp, 1); / / the right one delay (800); / / set the delay time P1=temp;} for (i=0; i<8; i++) {temp=_crol_ (temp, 1); / / left a delay (800); / / set the delay time P1=temp;}}} void (delay uint z) uint y {/ / delay procedures; (for; z>0; z--) for (y=248; y>0; y--;})
The eight light emitting diodes L1 L8 respectively connected to the P1.0 MCU and P1.7 interface, the output is "0", the LED light at the beginning of P1.0 - P1.1 - P1.2 - P1.3 -, - P1.7 - P1.6 - P1.0, and bright, repeat, this is a compilation of crystal 12M:: ORG 0 START: MOV R2. #8 MOV A, #0FEH SETB C LOOP: MOV P1, A LCALL DELAY RLC A DJNZ R2, LOOP MOV R2, #8 LOOP1: MOV P1, A LCALL DELAY RRC A DJNZ R2, LOOP1 LJMP START DELAY: MOV R5, D1: MOV R6, #20 #20; D2: MOV R7, #248 DJNZ R7, $DJNZ R6, D2 DJNZ R5 D1 RET END, of course, also can use C language to write: #include #include // #define uint unsigned int contains the displacement function of #define uchar unsigned char uchar temp I; / / data type unsigned char 8 void delay (uint); void (main) {temp=0xfe; P1=temp; while (1) {fo R (i=0; i<8; i++) {temp=_cror_ (temp, 1); / / the right one delay (800); / / set the delay time P1=temp;} for (i=0; i<8; i++) {temp=_crol_ (temp, 1); / / left a delay (800); / / set the delay time P1=temp;}}} void (delay uint z) uint y {/ / delay procedures; (for; z>0; z--) for (y=248; y>0; y--;})
