基于8051F350的AD转换显示存储程序文件Word文件下载.docx

资源描述

基于8051F350的AD转换显示存储程序文件Word文件下载.docx

《基于8051F350的AD转换显示存储程序文件Word文件下载.docx》由会员分享，可在线阅读，更多相关《基于8051F350的AD转换显示存储程序文件Word文件下载.docx（34页珍藏版）》请在冰点文库上搜索。

基于8051F350的AD转换显示存储程序文件Word文件下载.docx

{

K1OK=1;

3、voidT2_ISR（void）interrupt5

//定时器，定时扫描按键，当有按键按下时，显示ADZ

TF2H=0;

KeyScan（）;

if（K1OK==1）

K1OK=0;

//LCD1602第一行显示字母“ADZ”，第二行显示数字ADZ，24C02存储此值

/*****

1602高四位

DB4=P1^0，

AD转换，24位精度：

AIN0.0,Verf+接100K可调电阻测试,满量程2500mv

四个按键：

存储（24C02）：

SDA=P0^0，SCL=P0^1（和T2扫描按键有冲突，应该实时存储）

*****/

/////////////Routines

sfr16ADC0DEC=0x9A;

//ADC0DecimationRatioRegister

sfr16TMR3RL=0x92;

//Timer3reloadregisters

sfr16TMR3=0x94;

//Timer3counterregisters

sfr16TMR2RL=0xCA;

//Timer2ReloadRegister

sfr16TMR2=0xCC;

//Timer2Register

sbitSDA=P0^0;

//SMBusonP0.0

sbitSCL=P0^1;

//andP0.1

sbitK1=P1^4;

//四个按键

sbitK2=P1^5;

sbitK3=P1^6;

sbitK4=P1^7;

//GlobalCONSTANTS

//--------------------------------------------------------------------------------

#defineSYSCLK24500000//SYSCLKfrequencyinHz

#defineMDCLK2457600//ModulatorclockinHz（idealis

//（2.4576MHz）

#defineOWR20//DesiredOutputWordRateinHzADC0输出字速率,最大960

#defineBAUDRATE115200//BaudrateofUARTinbps

//------------------------------------------------------------------

#defineSMB_FREQUENCY50000//TargetSCLclockrate

//Thisexamplesupportsbetween10kHz

//and100kHz

#defineWRITE0x00//SMBusWRITEcommand

#defineREAD0x01//SMBusREADcommand

#defineEEPROM_ADDR0xA0//Deviceaddressforslavetarget

//Note:

Thisaddressisspecified

//intheMicrochip24LC02B

//datasheet.

//SMBusBufferSize

#defineSMB_BUFF_SIZE0x08//Definesthemaximumnumberofbytes

//thatcanbesentorreceivedina

//singletransfer

//Statusvector-top4bitsonly

#defineSMB_MTSTA0xE0//（MT）starttransmitted

#defineSMB_MTDB0xC0//（MT）databytetransmitted

#defineSMB_MRDB0x80//（MR）databytereceived

//-----------------------------------------------------

//----------------------------------------------------------------定时器2常量

#defineTOGGLE_RATE1000//每50ms检测按键1次

#defineTIMER_TICKS_PER_MSSYSCLK/8/1000//定时器每ms触发扫描次

#defineAUX1TIMER_TICKS_PER_MS*TOGGLE_RATE

#defineAUX2-AUX1

#defineTIMER2_RELOADAUX2//ReloadvalueforTimer2

//-------------------------------------------------------------

#defineucharunsignedchar

#defineuintunsignedint

//---------------------------------------------------------------------------------

sbitlcdrs=P0^6;

//数据/命令选择端，低电平为指令，高电平为数?

sbitlcden=P0^7;

//---------------------------------------------------------------------------------------------

ucharD1,D2,D3,D4,D5,D6,D7,D8;

uchar*pSMB_DATA_IN;

//GlobalpointerforSMBusdata

//Allreceivedataiswrittenhere

ucharSMB_SINGLEBYTE_OUT;

//Globalholderforsinglebytewrites.

uchar*pSMB_DATA_OUT;

//GlobalpointerforSMBusdata.

//Alltransmitdataisreadfromhere

ucharSMB_DATA_LEN;

//Globalholderfornumberofbytes

//tosendorreceiveinthecurrent

//SMBustransfer.

ucharWORD_ADDR;

//GlobalholderfortheEEPROMword

//addressthatwillbeaccessedin

//thenexttransfer

ucharTARGET;

//TargetSMBusslaveaddress

bitSMB_BUSY=0;

//Softwareflagtoindicatewhenthe

//EEPROM_ByteRead（）or

//EEPROM_ByteWrite（）

//functionshaveclaimedtheSMBus

bitSMB_RW;

//Softwareflagtoindicatethe

//directionofthecurrenttransfer

bitSMB_SENDWORDADDR;

//Whenset,thisflagcausestheISR

//tosendthe8-bit<

WORD_ADDR>

//aftersendingtheslaveaddress.

bitSMB_RANDOMREAD;

//tosendaSTARTsignalaftersending

//thewordaddress.

//Forthe24LC02BEEPROM,arandomread

//（areadfromaparticularaddressin

//memory）startsasawritethen

//changestoareadaftertherepeated

//startissent.TheISRhandlesthis

//switchoverifthe<

SMB_RANDOMREAD>

//bitisset.

bitSMB_ACKPOLL;

//tosendarepeatedSTARTuntilthe

//slavehasacknowledgeditsaddress

staticucharK1OK,K2OK,K3OK,K4OK;

staticucharge,shi,bai,qian;

staticunsignedlongADC_OutputVal;

//得到的份数

staticunsignedlongaccumulator=0;

//ADC累积测量N次值的和

staticuintmeasurements=0;

//ADC测量的次数

staticunsignedlongresult=0;

uinti,k;

ucharnum;

ucharcodetable1[]="

ADZ:

;

ucharcodetable2[]="

testdata."

//FunctionPROTOTYPES

voidOscillator_Init（void）;

voidPort_Init（void）;

voidUART0_Init（void）;

voidADC0_Init（void）;

voiddelay（uintx）;

voidLcd_1602_init（）;

voidLcd_1602_write（ucharcom,date）;

voidLcd_1602_write1（）;

voidSMBus_Init（void）;

voidTimer0_Init（void）;

voidTimer3_Init（void）;

voidSMBus_ISR（void）;

voidTimer2_Init（void）;

voidKeyScan（）;

voidTimer3_ISR（void）;

voidEEPROM_ByteWrite（unsignedcharaddr,unsignedchardat）;

voidEEPROM_WriteArray（unsignedchardest_addr,unsignedchar*src_addr,

unsignedcharlen）;

unsignedcharEEPROM_ByteRead（unsignedcharaddr）;

voidEEPROM_ReadArray（unsignedchar*dest_addr,unsignedcharsrc_addr,

//MAINRoutine

voidmain（void）

charin_buff[11]={0};

PCA0MD&

=~0x40;

//WDTE=0（clearwatchdogtimer

//enable）

Oscillator_Init（）;

//Initializesystemclock

while（!

SDA）

//Provideclockpulsestoallowtheslavetoadvanceout

//ofitscurrentstate.ThiswillallowittoreleaseSDA.

XBR1=0x40;

//EnableCrossbar

SCL=0;

//Drivetheclocklow

for（i=0;

255;

i++）;

//Holdtheclocklow

SCL=1;

//Releasetheclock

SCL）;

//Waitforopen-drain

//clockoutputtorise

10;

//Holdtheclockhigh

XBR1=0x00;

//DisableCrossbar

}

Port_Init（）;

//InitializeCrossbarandGPIO

//UART0_Init（）;

//InitializeUART0forprintf'

Lcd_1602_init（）;

ADC0_Init（）;

//InitializeADC0

AD0INT=0;

ADC0MD=0x83;

//Startcontinuousconversions

Timer0_Init（）;

//ConfigureTimer0foruseasSMBus

Timer2_Init（）;

//clocksource

Timer3_Init（）;

//ConfigureTimer3forusewithSMBus

//lowtimeoutdetect

SMBus_Init（）;

//ConfigureandenableSMBus

EIE1|=0x01;

//EnabletheSMBusinterrupt

EA=1;

//Enableglobalinterrupts

//加入按键测试-------------------

EEPROM_WriteArray（0x50,table2,sizeof（table2））;

EEPROM_ReadArray（in_buff,0x50,sizeof（in_buff））;

while（K1==0）

voidLcd_1602_init（）;

delay（3）;

for（i=0;

sizeof（in_buff）;

i++）

Lcd_1602_write（1,in_buff[i]）;

delay（3）;

}

//--------------------------

while

（1）{//Spinforever

//InitializationSubroutines

//-----------------------------------------------------------------

//1602程序部分

voidLcd_1602_init（）

{

Lcd_1602_write（0,0x28）;

//0x28=00101000，将液晶设置为16*2显示，5*7点阵，4位数据口

delay（5）;

lcden=1;

lcden=0;

//显示方式设置

Lcd_1602_write（0,0x0e）;

//设置开显示，不显示光标

Lcd_1602_write（0,0x06）;

//默认（0x06）写入新数据后光标右移屏幕不移动

Lcd_1602_write（0,0x01）;

//显示清0，数据指针清0

voidLcd_1602_write（ucharcom,date）

uchari;

uchartemp;

lcdrs=com;

//将形参传给lcdrs

i++）//每次写四位，写完一个数据/命令（8位）需要两次

temp=date;

P1=（P1&

0xF0）|（（temp&

0xF0）>

4）;

//将date的高四位送入P1第四位，同时保持P1的高四位不变

//如果使用P1的低四位的话，则该处应该改为：

P1=（P1&

0xf0）|（（date>

4）&

0x0f）;

//适当延时，数据稳定

//送入数据

date<

=4;

//低四位左移到高四位

voidLcd_1602_write1（ucharcom,date）

voiddelay（uintx）//延时x毫秒

uinti,j;

for（i=x;

i--）

for（j=110;

j--）;

//---------------------------------------------------------------------------

voidOscillator_Init（void）

OSCICN=0x83;

//配置内部振荡器,不分频

RSTSRC=0x04;

//Enablemissingclockdetector

//Port_Init

//ReturnValue:

None

//Parameters:

//ThisfunctioninitializestheGPIOandtheCrossbar初始化GPI0和交叉开关

//Pinout:

//P0.4-UARTTX（digital,push-pull）

//P0.5-UARTRX（digital,open-drain）

//AIN0.2-ADC0input

voidPort_Init（void）

//弱上拉使能，交叉开关使

展开阅读全文