单片机手电程序（长按开关机，短按换挡）

ID:91521 · 发表于 2022-1-23 15:39

#include <tiny13a.h>
#include <delay.h>
#define uchar unsigned char
#define uint unsigned int
#define key PINB.1
//#define LED PORTB.0
uchar key_code = 0;
uchar time_counter = 0;
bit change_flag = 0;
void key_scan(void)
{
if(key)
{
if((time_counter > 3) && (time_counter < 100))//短按
{
if(change_flag)
{
key_code++;
if(key_code == 5) key_code = 1;
}
}
time_counter = 0;
}
else
{
time_counter++;
delay_ms(10);
if(time_counter == 100)//长按
{
if (key_code != 0) //如果状态不处于关机状态，则执行关机
{
key_code = 0;
change_flag = 0;
}
else
{
key_code = 1; //如果已经在关机状态则执行开机
change_flag = 1;
}
}
if(time_counter > 100)
time_counter = 101;
}
}
void main(void)
{
// Input/Output Ports initialization
// Port B initialization
// Function: Bit5=In Bit4=In Bit3=In Bit2=In Bit1=In Bit0=Out
DDRB=(0<<DDB5) | (0<<DDB4) | (0<<DDB3) | (0<<DDB2) | (0<<DDB1) | (1<<DDB0);
// State: Bit5=T Bit4=T Bit3=T Bit2=T Bit1=P Bit0=0
PORTB=(0<<PORTB5) | (0<<PORTB4) | (0<<PORTB3) | (0<<PORTB2) | (1<<PORTB1) | (1<<PORTB0);
TCCR0A=0x03;
TCCR0B=0x01;
while (1)
{
key_scan();
switch (key_code)
{
case 0x00: //初始关机状态
TCCR0A=0x03;
PORTB.0 = 1;
break;
case 0x01:
TCCR0A=0x83;
OCR0A = 0x19; //10%亮度
break;
case 0x02:
OCR0A = 0x40; //25%亮度
break;
case 0x03:
OCR0A = 0x80; //50%亮度
break;
case 0x04:
OCR0A = 0xc0; //75%亮度
break;
default:
break;
}
}
}

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ID:229641 · 发表于 2022-1-23 17:29

这是哪家的单片机芯片？

ID:91521 · 发表于 2022-1-24 18:45

AVR单片机，AT tiny13a

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