不会写代码的老菜鸟，用deepseek折腾了几天程序，终于完成了一个小制作。 - 数码之家

#include <STC8G.h>
#include <intrins.h>
// Define pins for TM1637
#define TM1637_CLK P1_0
#define TM1637_DIO P1_1
// Define pins for buttons
#define MODE_BTN P1_2
#define ADD_BTN P1_3
// Define relay pin
#define RELAY P1_4
// TM1637 commands
#define ADDR_AUTO 0x40
#define ADDR_FIXED 0x44
#define DISPLAY_ON 0x88
#define STARTADDR 0xC0
// Display state
#define STATE_INIT 0
#define STATE_PAUSE 1
#define STATE_COUNTDOWN 2
// Global variables
unsigned char currentState = STATE_INIT;
unsigned char minutes = 0;
unsigned char seconds = 0;
bit colonState = 1;
unsigned int timerCounter = 0;
bit buttonDebounce = 0;
// Function prototypes
void delay_ms(unsigned int ms);
void TM1637_start(void);
void TM1637_stop(void);
void TM1637_write_byte(unsigned char b);
void TM1637_display(unsigned char* digits, bit colon);
void display_init(void);
void display_time(unsigned char min, unsigned char sec, bit colon);
void init_timer0(void);
void check_buttons(void);
// Main function
void main(void)
{
// Initialize system
P1M0 = 0x00; // Set P1 as quasi-bidirectional mode
P1M1 = 0x00;
// Initialize relay (off)
RELAY = 0;
// Initialize display
display_init();
// Initialize timer
init_timer0();
// Enable global interrupts
EA = 1;
while(1)
{
check_buttons();
// State machine
switch(currentState)
{
case STATE_INIT:
// Display "--:--"
{
unsigned char digits[4] = {0x40, 0x40, 0x40, 0x40}; // Segments for "-"
TM1637_display(digits, 1);
}
break;
case STATE_PAUSE:
// Display time with colon on
display_time(minutes, seconds, 1);
break;
case STATE_COUNTDOWN:
// Display time with blinking colon
display_time(minutes, seconds, colonState);
break;
}
}
}
// Delay function
void delay_ms(unsigned int ms)
{
unsigned int i, j;
for(i = 0; i < ms; i++)
for(j = 0; j < 110; j++); // Adjust for STC8G at typical clock
}
// TM1637 communication functions
void TM1637_start(void)
{
TM1637_CLK = 1;
TM1637_DIO = 1;
delay_ms(1);
TM1637_DIO = 0;
delay_ms(1);
TM1637_CLK = 0;
delay_ms(1);
}
void TM1637_stop(void)
{
TM1637_CLK = 0;
delay_ms(1);
TM1637_DIO = 0;
delay_ms(1);
TM1637_CLK = 1;
delay_ms(1);
TM1637_DIO = 1;
delay_ms(1);
}
void TM1637_write_byte(unsigned char b)
{
unsigned char i;
for(i = 0; i < 8; i++)
{
TM1637_CLK = 0;
delay_ms(1);
if(b & 0x01)
TM1637_DIO = 1;
else
TM1637_DIO = 0;
delay_ms(1);
TM1637_CLK = 1;
delay_ms(1);
b >>= 1;
}
// Wait for ACK
TM1637_CLK = 0;
TM1637_DIO = 1;
delay_ms(1);
TM1637_CLK = 1;
delay_ms(1);
// Read ACK (not used)
TM1637_CLK = 0;
delay_ms(1);
}
// Display functions
void TM1637_display(unsigned char* digits, bit colon)
{
unsigned char i;
unsigned char segData[4];
// Segment data for 0-9
unsigned char digitToSegment[] = {
0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x07, 0x7F, 0x6F
};
// Convert digits to segment data
for(i = 0; i < 4; i++)
{
if(digits[i] <= 9)
segData[i] = digitToSegment[digits[i]];
else
segData[i] = digits[i]; // Direct segment data
}
// Add colon if needed (on digit 1)
if(colon)
segData[1] |= 0x80;
// Send data to display
TM1637_start();
TM1637_write_byte(ADDR_AUTO);
TM1637_stop();
TM1637_start();
TM1637_write_byte(STARTADDR);
for(i = 0; i < 4; i++)
TM1637_write_byte(segData[i]);
TM1637_stop();
TM1637_start();
TM1637_write_byte(DISPLAY_ON);
TM1637_stop();
}
void display_init(void)
{
// Initialize display
TM1637_start();
TM1637_write_byte(DISPLAY_ON);
TM1637_stop();
// Display "--:--"
unsigned char digits[4] = {0x40, 0x40, 0x40, 0x40}; // Segments for "-"
TM1637_display(digits, 1);
}
void display_time(unsigned char min, unsigned char sec, bit colon)
{
unsigned char digits[4];
// Convert minutes and seconds to digits
digits[0] = min / 10;
digits[1] = min % 10;
digits[2] = sec / 10;
digits[3] = sec % 10;
TM1637_display(digits, colon);
}
// Timer initialization
void init_timer0(void)
{
// Configure Timer0 for 10ms interrupts
TMOD &= 0xF0; // Clear Timer0 mode bits
TMOD |= 0x01; // Set Timer0 to mode 1 (16-bit timer)
TH0 = 0xDC; // Initial value for 10ms at 11.0592MHz
TL0 = 0x00;
TR0 = 1; // Start Timer0
ET0 = 1; // Enable Timer0 interrupt
}
// Button handling
void check_buttons(void)
{
// Debounce protection
if(buttonDebounce)
return;
// Check mode button
if(MODE_BTN == 0)
{
delay_ms(20); // Debounce
if(MODE_BTN == 0)
{
buttonDebounce = 1;
switch(currentState)
{
case STATE_INIT:
// Change to pause state
currentState = STATE_PAUSE;
minutes = 0;
seconds = 0;
break;
case STATE_PAUSE:
// Start countdown
currentState = STATE_COUNTDOWN;
RELAY = 1; // Turn on relay
break;
case STATE_COUNTDOWN:
// Pause countdown
currentState = STATE_PAUSE;
RELAY = 0; // Turn off relay
break;
}
// Wait for button release
while(MODE_BTN == 0);
delay_ms(20); // Debounce
}
}
// Check add button (only in pause state)
if(ADD_BTN == 0 && currentState == STATE_PAUSE)
{
delay_ms(20); // Debounce
if(ADD_BTN == 0)
{
buttonDebounce = 1;
// Increment minutes
minutes++;
if(minutes > 99)
minutes = 0;
// Wait for button release
while(ADD_BTN == 0);
delay_ms(20); // Debounce
}
}
}
// Timer0 interrupt service routine
void timer0_isr() interrupt 1
{
// Reload timer
TH0 = 0xDC;
TL0 = 0x00;
// Increment counter (100 * 10ms = 1 second)
timerCounter++;
// Toggle colon every 500ms in countdown mode
if(timerCounter % 50 == 0 && currentState == STATE_COUNTDOWN)
colonState = !colonState;
// Update time every second in countdown mode
if(timerCounter >= 100 && currentState == STATE_COUNTDOWN)
{
timerCounter = 0;
// Decrement seconds
if(seconds > 0)
{
seconds--;
}
else
{
if(minutes > 0)
{
minutes--;
seconds = 59;
}
else
{
// Timer finished
currentState = STATE_INIT;
RELAY = 0; // Turn off relay
}
}
}
// Reset button debounce flag after 50ms
if(buttonDebounce && timerCounter % 5 == 0)
buttonDebounce = 0;
}

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