|
现开发了单片机控制5路PWM波形，也可以同时控制15路直流三色灯板，按触摸屏顺序点亮的电路和程序，供大家参考。 电路为 单片机ATMEGA128控制5路PWM方波，按照74HC08逻辑编码输出15路PWM信号，一次按照迪文触摸屏点亮3种颜色灯板的5路发光信号。ULN2003提供12V电压。每个灯板通过一个CMOS管IR3205输出功率。一个74HC08通过一路PWM，这路PWM通过74HC08控制的继电器控制IR3205的开关，进而控制24V，13V,36V灯板的开关，灯板的亮度通过PWM波形的占空比调节电路的PCB如下 上面是单片机PCB，它和灯板PCB通过排线连接
图片 图片 图片 上面是灯板PCB。下面是单片机程序，程序用ICC-AVR开发，链接：https://pan.baidu.com/s/1X_7zIHR4K1ipaGRTviVtUw ; 提取码：so7m 复制这段内容后打开百度网盘手机App，操作更方便哦 //ICC-AVR application builder : 2010-6-22 15:14:03 // Target : M64A // Crystal: 4.0000Mhz /* 修改宏定义以实现不同功能, */ #include "main.h" /******************************************* 向串口1发送单个数据，查询方式 *******************************************/ void TxUart1(unsigned char i) { //CLI(); //disable all interrupts //DelayMs(1); while (!(UCSR0A & (1<<UDRE0))); /* 等待发送缓冲器为空*/ UDR0 = i; /* 发送数据*/ //SEI(); //re-enable interrupts } /******************************************* 向串口0发送数组，查询方式 参数1:数组指针; 参数2:数组长度; *******************************************/ void TxArrayUart1(unsigned char *ptr,unsigned char number) { //CLI(); //disable all interrupts uchar i; for(i = 0; i < number; i++) { TxUart1(ptr[i]); } //SEI(); //re-enable interrupts } /******************************************* 向串口1发送单个数据，查询方式 ******************************************* void TxUart1(unsigned char i) { //CLI(); //disable all interrupts while (!(UCSR1A & (1<<UDRE1))); //等待发送缓冲器为空 UDR1 = i; //发送数据 //SEI(); //re-enable interrupts } /******************************************* 向串口0发送数组，查询方式 参数1:数组指针; 参数2:数组长度; ******************************************* void TxArrayUart1(unsigned char *ptr,unsigned char number) { //CLI(); //disable all interrupts uchar i; for(i = 0; i < number; i++) { TxUart1(ptr[i]); } //SEI(); //re-enable interrupts } /******************************************* 数据接收，等待查询方式 *******************************************/ unsigned char uart_receive1(void) { while (!(UCSR1A & (1<<RXC1))); /* 等待接收数据*/ return UDR1; /* 获取并返回数据*/ } //UART0 initialize // desired baud rate: 9600 // actual: baud rate: 9615 (0.2%) // char size: 8 bit // parity: Disabled void uart0_init(void) { UCSR0B = 0x00; //disable while setting baud rate UCSR0A = 0x00; UCSR0C = 0x06; UBRR0L = 0x0C; //set baud rate lo UBRR0H = 0x00; //set baud rate hi UCSR0B = 0x98; } #pragma interrupt_handler uart0_rx_isr:iv_USART0_RXC void uart0_rx_isr(void) { //uart has received a character in UDR uart1_data = UDR0; switch (uart1_counter) { case 0: if (uart1_data == 0xaa) uart1_counter ++; else uart1_counter = 0; break; case 1: if ((uart1_data == 0x78) || (uart1_data == 0x79)) uart1_counter ++; else uart1_counter = 0; button_type = uart1_data; break; case 2: if (uart1_data == 0x00) { uart1_counter ++; } else uart1_counter = 0; break; case 3: uart1_counter ++; button = uart1_data; break; case 4: if (uart1_data == 0xcc) uart1_counter ++; else uart1_counter = 0; break; case 5: if (uart1_data == 0x33) uart1_counter ++; else uart1_counter = 0; break; case 6: if (uart1_data == 0xc3) uart1_counter ++; else uart1_counter = 0; break; case 7: uart1_counter = 0; if (uart1_data == 0x3c) { switch(button) { case 0x57: case 0x58: case 0x63: if(button_time == 0) { button_flag = 1; button_time = 110; } break; default: if((button_time == 0) && (button_type == 0x78)) { button_flag = 1; } break; } } break; default: uart1_counter = 0; break; } } /* #pragma interrupt_handler uart1_rx_isr:iv_USART1_RXC void uart1_rx_isr(void) { //uart has received a character in UDR uart1_data = UDR1; switch (uart1_counter) { case 0: if (uart1_data == 0xaa) uart1_counter ++; else uart1_counter = 0; break; case 1: if ((uart1_data == 0x78) || (uart1_data == 0x9b)) uart1_counter ++; else uart1_counter = 0; break; case 2: if ((uart1_data == 0x00) || (uart1_data == 0x5a)) { uart1_counter ++; if(uart1_data == 0x5a) time_get = 1; } else uart1_counter = 0; break; case 3: if(time_get) { time[time_get - 1] = uart1_data; if(time_get < 6) time_get ++; else { //time_get = 0; uart1_counter ++; } } else { uart1_counter ++; button = uart1_data; } break; case 4: if (uart1_data == 0xcc) uart1_counter ++; else uart1_counter = 0; break; case 5: if (uart1_data == 0x33) uart1_counter ++; else uart1_counter = 0; break; case 6: if (uart1_data == 0xc3) uart1_counter ++; else uart1_counter = 0; break; case 7: uart1_counter = 0; if (uart1_data == 0x3c) { if(time_get) { time_get = 0; time_flag = 1; } else button_flag = 1; } break; default: uart1_counter = 0; break; } }*/ //UART1 initialize // desired baud rate:19200 // actual baud rate:19231 (0.2%) // char size: 8 bit // parity: Disabled void uart1_init(void) { UCSR1B = 0x00; //disable while setting baud rate UCSR1A = 0x00; UCSR1C = 0x06; UBRR1L = 0x0C; //set baud rate lo UBRR1H = 0x00; //set baud rate hi UCSR1B = 0x98; } //TIMER0 initialize - prescale:32 // WGM: Normal // desired value: 1KHz // actual value: 1.000KHz (0.0%) void timer0_init(void) { TCCR0 = 0x00; //stop ASSR = 0x00; //set async mode TCNT0 = 0x83; //set count OCR0 = 0x7D; // TCCR0 = 0x03; //start timer } #pragma interrupt_handler timer0_ovf_isr:iv_TIM0_OVF void timer0_ovf_isr(void) { TCNT0 = 0x83; //reload counter value if(ms) ms--; } //TIMER1 initialize - prescale:64 // WGM: 0) Normal, TOP=0xFFFF // desired value: 1KHz // actual value: 1.008KHz (0.8%) void timer1_init(void) { TCCR1B = 0x00; //stop TCNT1H = 0xFF; //setup TCNT1L = 0xC2; OCR1AH = 0x00; OCR1AL = 0x3E; OCR1BH = 0x00; OCR1BL = 0x3E; OCR1CH = 0x00; OCR1CL = 0x3E; ICR1H = 0x00; ICR1L = 0x3E; TCCR1A = 0x00; TCCR1B = 0x03; //start Timer } #pragma interrupt_handler timer1_ovf_isr:iv_TIM1_OVF void timer1_ovf_isr(void) { //TIMER1 has overflowed TCNT1H = 0xFF; //reload counter high value TCNT1L = 0xC2; //reload counter low value if(laser_ms) laser_ms --; if(button_time) button_time --; if(rf_out_time) { rf_out_time --; if(RF_TYPE) RFRUN_L; else RFCTL_L; } else { //if(RF_TYPE) RFRUN_H; //else RFCTL_H; } cold_count = (cold_count < 3) ? (cold_count + 1) : 0; if(cold_count < cold_max) COLD_L; else COLD_H; } //TIMER2 initialize - prescale:1024 // WGM: Normal // desired value: 20Hz // actual value: 20.032Hz (0.2%) void timer2_init(void) { TCCR2 = 0x00; //stop TCNT2 = 0x3D; //setup OCR2 = 0xC3; TCCR2 = 0x05; //start } #pragma interrupt_handler timer2_ovf_isr:iv_TIM2_OVF void timer2_ovf_isr(void) { TCNT2 = 0x3D; //reload counter value WDR (); if(ad_time < 20) { ad_time++; } else { ad_time = 0; if(miniter == 60) { miniter = 0; total_time ++; EEPROM_write(0x110,total_time>>16); EEPROM_write(0x111,(unsigned char)total_time>>8); EEPROM_write(0x112,(unsigned char)total_time); } else miniter ++; if(lamp_ok) { if(miniter_rdy == 60) { miniter_rdy = 0; total_time ++; EEPROM_write(0x113,total_time_rdy >> 16); EEPROM_write(0x114,(unsigned char)total_time_rdy >> 8); EEPROM_write(0x115,(unsigned char)total_time_rdy); } else miniter_rdy ++; } /*每一秒启动一次温度采集*/ ADCSRA = 0xcf; } if(beep_time) { beep_time--; BEEP_L; } else BEEP_H; } //Watchdog initialize // prescale: 512K void watchdog_init(void) { WDR (); //this prevents a timeout on enabling WDTCR |= (1<<WDCE) | (1<<WDE);/* 30-Oct-2006 Umesh*/ WDTCR = 0x0D; //WATCHDOG ENABLED - dont forget to issue WDRs } void port_init(void) { PORTA = 0xFF; DDRA = 0xFF; PORTB = 0xFF; DDRB = 0xFF; PORTC = 0x0E; //m103 output only DDRC = 0x0F; PORTD = 0x00; DDRD = 0x93; PORTE = 0x00; DDRE = 0x00; PORTF = 0x01; DDRF = 0x01; PORTG = 0x00; DDRG = 0x13; } #pragma interrupt_handler int0_isr:iv_INT0 void int0_isr(void) { //external interupt on INT0 } //ADC initialize // Conversion time: 16uS void adc_init(void) { ADCSRA = 0x00; //disable adc ADMUX = 0xc1; //select adc input 1 ACSR = 0x80; ADCSRA = 0xcf;//|| 0x40; } #pragma interrupt_handler adc_isr:iv_ADC void adc_isr(void) { //conversion complete, read value (int) using... ad_value=ADCL; //Read 8 low bits first (important) ad_value|=(int)ADCH << 8; //read 2 high bits and shift into top byte temp_flag = 1; } //call this routine to initialize all peripherals void init_devices(void) { //stop errant interrupts until set up CLI(); //disable all interrupts XDIV = 0x00; //xtal divider XMCRA = 0x00; //external memory port_init(); //watchdog_init(); //adc_init(); //timer0_init(); //timer1_init(); //timer2_init(); uart0_init(); uart1_init(); MCUCR = 0x00; EICRA = 0x00; //extended ext ints EICRB = 0x00; //extended ext ints EIMSK = 0x00; TIMSK = 0x45; //timer interrupt sources ETIMSK = 0x00; //extended timer interrupt sources SEI(); //re-enable interrupts //all peripherals are now initialized } /************************************************ 发送需要显示的字符/坐标到液晶控制器; 参数1:坐标X; 参数2:坐标Y; 参数3:字符串数组; ************************************************/ void DisString(unsigned short x,unsigned short y,unsigned int word_color,unsigned int ground_color,unsigned char big,char * string) { unsigned char i = 0; SetColor(word_color,ground_color); //AA 55 00 00 00 00 49 CC 33 C3 3C TxUart1(0xaa); if(big) TxUart1(0x55); else TxUart1(0x6f); TxUart1( (uchar)((x*EIGHT_SWITCH) >> 8) ); TxUart1( (uchar)(x*EIGHT_SWITCH) ); TxUart1( (uchar)((y*EIGHT_SWITCH) >> 8) ); TxUart1( (uchar)(y*EIGHT_SWITCH) ); while(string[i] != 0) { TxUart1(string[i]); i++; } TxUart1(0xcc); TxUart1(0x33); TxUart1(0xc3); TxUart1(0x3c); } |
原文地址：https://www.cnblogs.com/zgdcnyhl/p/12344381.html