/*51 MCU controlled LED flashing pattern program, pre-store various flashing combinations of LED lights in the table, then use the table lookup to read the data in the table and output it to the P2 port. This method is often used to control neon lights. The original source of this program: 51Hei MCU http://www.51hei.com , the source code is as follows, if you have any questions, please correct me*/
#include
void main(void)
{const unsigned char design[32]={0xFF,0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F, 0x7F,
0xBF,0xDF,0xEF,0xF7,0xFB,0xFD,0xFE,0xFF, 0xFF,
0xFE,0xFC,0xF8,0xF0,0xE0,0xC0,0x80,0x0,
0xE7,0xDB,0xBD,0x7E,0xFF}; //Define pattern data unsigned int a; //Define variable unsigned char b
for loop ;
//Due to limited memory, pay attention to the use of variable types in C51 programming
do{ //do while type loop
for (b=0; b<32; b++)
{for(a=0; a<30000; a++); //Delay for a period of time
P2 = design; //Read the defined pattern data and write the pattern data to port P2
}
} while(1);
}
void main() //Main function
{ unsigned char OutData=0xfe; //Define output data and initial value
for(;;) //Infinite loop
{
P2=OutData; //Output OutData to port P2 to turn on an LED in port P2
OutData=_crol_(OutData,1); //Shift OutData left circularly to shift the on LED one position to the left
mDelay(100); //Call the delay function and delay for 100 milliseconds
}}
Reference address：Single chip microcomputer controls the flashing of LED lights
#include
void main(void)
{const unsigned char design[32]={0xFF,0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F, 0x7F,
0xBF,0xDF,0xEF,0xF7,0xFB,0xFD,0xFE,0xFF, 0xFF,
0xFE,0xFC,0xF8,0xF0,0xE0,0xC0,0x80,0x0,
0xE7,0xDB,0xBD,0x7E,0xFF}; //Define pattern data unsigned int a; //Define variable unsigned char b
for loop ;
//Due to limited memory, pay attention to the use of variable types in C51 programming
do{ //do while type loop
for (b=0; b<32; b++)
{for(a=0; a<30000; a++); //Delay for a period of time
P2 = design; //Read the defined pattern data and write the pattern data to port P2
}
} while(1);
}
void main() //Main function
{ unsigned char OutData=0xfe; //Define output data and initial value
for(;;) //Infinite loop
{
P2=OutData; //Output OutData to port P2 to turn on an LED in port P2
OutData=_crol_(OutData,1); //Shift OutData left circularly to shift the on LED one position to the left
mDelay(100); //Call the delay function and delay for 100 milliseconds
}}
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