微型计算机应用实例有哪些,第六章微机高级应用实例

た入场券 2022-10-07 15:58 157阅读 0赞

1LED LED

LT3478PWM3000:1LEDLED()PWMLEDLED

CTRL1 = 1.24\* 130/(130+45.3+54.9) = 0.7V

INA139

ADC ADS782212ADS782275 kHz ;,2. 05. 0 V ,;:75kHz 0. 54 mW;7. 5kHz0. 06 mW;,3A ;,8 DIP ,SOIC MSOP ;;CPU

ADS7822

/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/long GetLM(void) \{uchar i,j,hbyte,lbyte;uint ADdata=0; //ADdataAD\_data;long AD\_data=0;LM\_CS=1;//

for(i=0;i

for(j=0;j

2 :

\+5V, GND

\+36V,

GND\_P

\+5V\_P

LCOS

L297+

L298

L297+

L298

MCU,

W77E58

RS232

LCOS

L298

lm393

TLP521

6N137

LCOS

Max813L

2LCOS

L297+

L298

\+24V,

GND\_P

\+5V, GND, -5V

opa2277

LCD

MCU

C8051F005

lm393

lm385

74LS07

6AD590

6N137

TPS3705

Lm1117

74ls573

EEPROM

24LC04

I/O

PCA9554

opa2277

LCOS

, Display\_num=0

Display\_num==20

Display\_num=0

LCD

Display\_num++

StepIn\_NumberStepOut\_NumberDivision\_Number

StepOut\_Number

AD590ADLinear Current Output: 1 A/KWide Range: 55 C to +150CTwo Terminal Device: Voltage In/Current OutExcellent Linearity: 0.3 C Over Full Range (AD590M)Wide Power Supply Range: +4 V to +30 V

0273A, 10V/0.273mA = 36.6K

2.5V/0.273mA = 9.15K

ADCvoid init\_adc(void)\{ADC0CN = 0x81; // ADC0 enabled; normal tracking // mode; ADC0 conversions are initiated // on write to AD0BUSY; ADC0 data is // left-justifiedREF0CN = 0x07; // enable temp sensor, on-chip VREF, // and VREF output bufferAMX0CF = 0;//AIN0~AIN7 ADC0CF = 0x80; // ADC conversion clock = 16 ,

unsigned int read\_temp(unsigned char Channel)//Channel 0: CX; 1: PD; 2: WD; 3: HG\{unsigned int xdata i;unsigned int xdata Temp; // ADCunsigned int xdata Ctg;//

AMX0SL = Channel;// Temp = 0;for(i=0;i

void Temp\_Control\_HG(void)\{ char xdata i;//5 if(Temp\_HG\_Read+Temp\_HG\_Offset=Temp\_HG\_Set-Temp\_Paper\_Threshold) & (Temp\_HG\_Read+Temp\_HG\_Offset=Temp\_HG\_Set-10) & (Temp\_HG\_Read+Temp\_HG\_Offset=Temp\_HG\_Set+10) & (Temp\_HG\_Read+Temp\_HG\_Offset

if(Temp\_HG\_Read+Temp\_HG\_Offset>=Temp\_HG\_Set+100)//10\{ HG\_HEATER=1;// if(Alarm\_Num

void Temp\_Control\_NoHG(void)//\{ char xdata i; if(Temp\_CX\_Read+Temp\_CX\_Offset=Temp\_CX\_Set-Temp\_Threshold & Temp\_CX\_Read+Temp\_CX\_Offset=Temp\_CX\_Set & Temp\_CX\_Read+Temp\_CX\_Offset=Temp\_CX\_Set+30)//3

TPS3705Power-On Reset Generator with Fixed Delay Time of 200 ms, no External Capacitor Needed Precision Supply Voltage Monitor 2.5 V, 3 V, 3.3 V, and 5 V Integrated Watchdog TimerVoltage Monitor for Power-Fail or Low-Battery Warning

TPS3705WDI = !WDI;//if(!WDO)//\{ALARM=1;//EIE2 &= 0xFE;//3\}

void Timer3\_ISR() interrupt 14//Timer3 interrupt\{TMR3CN &= 0x7F;//

WDTCN = 0xA5;// Watchdog Timer Control Register,WDTCN = 0x07;// 1048576/ (11.0592MHz, 95ms)

if(!Paper\_Flag)//Paper\_Num++;//1

if(Display\_Num%5 == 0)\{LIGHT = 0;//\}else\{LIGHT = 1;//\}

L297+L298L297L298HL297+L298L2973L297

//void In\_Motor(unsigned int Step\_Num, unsigned int Speed)\{unsigned int i;FixStep = FIXSTEP;//400if((Step\_Num 1000))//return;Step\_Num \*= STEP\_COEF;//Step\_Num -= (FixStep+FixStep/2);PAPER\_OUT\_EN =ENABLE;//PAPER\_OUT\_CW = CW;//ExtWatchdog();//for(i=200;i>0;i--)//200\{PAPER\_OUT\_CLK =1;//delay2us(Speed+Speed\*(i/20));//20PAPER\_OUT\_CLK =0;//delay2us(Speed+Speed\*(i/20));//20ExtWatchdog();//\}

for(i=0;i

for(i=FixStep;i>0;i--) // \{ ExtWatchdog();// PAPER\_IN\_CLK ^=1;// PAPER\_OUT\_CLK ^=1;// delay2us(Speed+i); // if(PAPERNO)// \{PAPER\_IN\_EN=1;//DISABLE;//PAPER\_OUT\_EN=1;//DISABLE;//send(PAPERNONE);//return;// \} \} for(i=0;i

for(i=0;i

Schmitt-trigger inverter

void ExtWatchdog(void)//\{WDI=!WDI;//if(!WDO)//\{send(RESET);//WDTRST = 0x01e;WDTRST = 0x0aa;//\}\}