基于msp430g2553单片机ADC测量外部直流电压

＃ｉncｌude<msp430ｇ2553.ｈ＞#dｅfｉｎeuｃｈarunｓｉgｎeｄchaｒ#ｄeｆｉnｅuiｎtuｎsｉｇｎeｄinｔ#dｅfｉneＬCD＿CON_DIRP2DIＲ#ｄｅfｉｎeLCＤ＿CON_IＮP2ＩN#defineＬCD_CＯＮ＿OＵＴP2OUT#ｄefiｎeLCD_RＳＢＩT0//ｐ2.５接5１p2.5#dｅfinｅLＣD_RWBIＴ1／/ｐ2.０接5１ｐ2.6#defiｎｅLCＤ_ＥＮBIＴ2//p2．1接51ｐ2.7＃defineLCＤ_DＡＴA＿ＤIＲP1DIＲ#ｄeｆiｎeＬCD＿ＤＡＴA＿ＩNP1IＮ#dｅｆineLCD_DATA＿OＵTP1OUT＃defiｎeA１０00#defiｎeＢ10０#dｅfinｅX10vｏidＩniｔOｓc(ｖoｉｄ);voｉdＩnitLＣD(void);ｖｏｉdｗrite_ｃommaｎｄ(ucharcommanｄ);ｖoｉdwｒiｔｅ＿ｄａｔa(ucｈarｄata);voｉdDispｌａy_ZＦC(uｃｈａｒ*s）;ｖoｉdLＣＤ＿Sｅt_xy(uchａｒｘ，uchａry）;voiｄTｒaｎs_ｖａl(uintＨeｘ_Ｖａｌ）;ｖｏｉｄDｉsplａy_Vｏｌｔｅ(uintHｅx＿Ｖａｌ）;ｖoidMeaｓuｒe_Voltｅ(voiｄ);uｃharnum[］=｛＂.v＂};ucｈａｒvolte［］={"Volｔ:＂}；ｕintiｎｄex＝0；iｎｔi；ｕｎsigｎｅｄｌonｇｓum=0;ｕintＨex_Vａｌ;#ｄefineＮuｍ_ｏf＿Resultｓ３2ｕinｔrｅsｕlts[Nuｍ＿of_Ｒｅsｕｌts];//保存AＤC转换成果旳数组ｕiｎtaverage;／****＊**＊*****＊******＊*＊*＊*＊**＊***********＊******＊*************＊＊＊＊＊*****＊***ADC初始化*****＊*********＊＊＊****＊*＊＊*****＊**＊**＊**＊＊＊＊*＊*＊***＊*****＊***＊******＊******＊*／voidADC＿Init(vｏid){AＤC10CTL0=AＤC10ＳHT_2+ＡDＣ10ＯN＋ＡＤＣ10IE；／/AＤC１0OＮ,ｉｎtｅｒｒupｔeｎａblｅｄADC１０ＣTＬ1=INCH＿1;//iｎｐuｔA1ＡDC1０AE0|=0x02;//二次采集}／*****＊*******＊＊*******＊＊＊＊＊＊*＊****＊*＊*＊******＊＊****＊*＊**＊＊＊＊＊*＊***＊*＊*＊**＊**ＤＣO时钟初始化设为1MＨｚ***＊***********＊＊**＊**＊*＊*＊＊＊＊******＊＊*******＊****＊**＊*******＊*＊＊****＊******＊/ｖoidDＣＯ_Iｎiｔ(voｉd）{ if(CＡLＢＣ1＿1ＭＨZ=＝0ｘFF||CＡLDCO＿1MHZ=＝０xＦＦ)ﻩﻩ{ﻩﻩﻩｗhｉle(1); ｝ BCSCＴＬ１=ＣALBＣ1_１MHZ;ﻩDCOＣTＬ=CALDCＯ_1MHＺ;ﻩBＣSCＴL2=ＳELM＿0+DＩＶＭ＿0；}/**＊*＊＊**＊********＊*****＊＊***＊*＊*******＊＊*******＊＊＊**＊＊*＊＊＊**＊***＊＊＊＊＊*＊＊＊***向1２864发送字节******＊********＊***＊＊**＊******＊**＊**＊****＊＊*＊**＊*******＊*＊**＊************＊**＊/vｏidSｅndBｙｔｅ（uchaｒZdaｔa）{ ｕinti；ﻩfor（i=0;i＜8;i++) ｛ﻩﻩiｆ((Zｄata＜＜ｉ）&０x80) ﻩ{ﻩﻩﻩＬCＤ_ＣOＮ_ＯUＴ｜=ＬＣＤ_RＷ;//cｌｋ始终信号为高ﻩﻩ｝ﻩﻩeｌse ﻩ{ﻩ LＣＤ_CON_ＯUＴ&=～LＣＤ＿RW;//clk始终信号为低ﻩﻩ｝ﻩﻩLCD_ＣＯN_ＯUT&=~ＬCD_ＥN；ﻩ LＣD_CＯＮ_OUT|=LCD＿ＥＮ;ﻩ}}／******＊***＊*＊****＊**＊＊***＊*＊***＊＊****＊*＊***＊*＊*＊****＊***＊**＊＊*＊**＊＊＊＊****＊＊*向12864写命令*＊＊＊******＊*****＊＊＊*＊＊**＊*****＊******＊***********＊**＊＊＊**＊****＊**＊***＊＊*＊**＊*／voidwriｔe＿cｏmｍａｎd（ucｈaｒcｏｍｍａnd）｛ LCD_ＣON＿OUT|=ＬCＤ＿RＳ；ﻩSendBｙte(0ｘＦ8)；ﻩSendBｙte(coｍmaｎd&0ｘＦ０)； SｅndBｙte((commanｄ<<４）＆０ｘF０);ﻩ_deｌay_cｙcｌeｓ(20０);｝/＊＊＊＊*＊＊*＊＊＊*＊*******＊＊＊******＊＊＊***＊*＊****＊**＊****＊＊******＊*******＊**＊＊**＊＊*向1２8６４写数据＊**************＊＊＊*＊***＊*＊**＊＊******＊＊***＊***＊*＊*＊＊*****＊*＊＊*＊*＊＊＊＊*＊**＊***＊＊/vｏiｄｗｒｉtｅ_daｔａ(ｕchardatａ)｛ﻩＬCＤ_ＣＯN_OUＴ|=ＬCD＿RＳ；ﻩSendＢyｔｅ（0ｘFA）;ﻩSｅndByte(ｄata&0xF0）；ﻩSenｄBｙｔｅ(（ｄata＜<4）&0xF０）； ＿delay＿cｙclｅs（２００)；}vｏidDisplaｙ_ZFC(ucｈaｒ*s）｛ ｗhiｌｅ(＊s＞0）{ﻩﻩｗriｔe＿daｔａ（*s);ﻩﻩs+＋;ﻩﻩ＿ｄeｌａy_cyｃleｓ(５0０0);}｝/*＊*＊*＊＊＊＊****＊*＊＊＊*＊*******＊*＊**＊****＊＊***＊**＊*＊＊＊＊**＊＊****＊＊＊**＊*＊＊*＊＊**＊**拟定１2864屏幕显示旳坐标位置（ｘ,ｙ）********＊＊*＊*＊**＊*******＊*＊＊****＊********＊*****************＊*＊***＊＊＊**＊**＊**＊/ｖoidＬCＤ＿Set_xy（ｕｃhａｒｘ,uｃhaｒy){uｃｈaraｄdｒesｓ;ﻩswｉtch（x）ﻩ{ ﻩｃasｅ0:ａｄdｒｅsｓ=0x80+y;breaｋ；case1:ａｄdresｓ＝0ｘ80+y;bｒｅaｋ;ﻩﻩcａse2:addｒess=0x90+y;breａk；ﻩﻩcase3:addｒｅss=0x８8+y;ｂreak；ﻩﻩｃａse4:address=0x９8＋y;brｅaｋ; ﻩｄefauｌt：adｄrｅsｓ=0x80+y；bｒeak;ﻩ}wrｉte_commａｎd（adｄreｓs）;/／写入地址命令｝／＊＊*＊*＊＊*＊＊*****＊**＊***＊＊***＊***＊＊*＊＊＊*＊＊＊**＊***＊*＊******＊**＊*＊***＊***＊******ｌcd初始化****＊***＊**＊**＊＊＊*＊*＊*******＊*＊＊＊***＊****＊＊＊***＊****＊***＊*****＊*＊*＊*＊*****＊**/vｏiｄInitLCD(void){ﻩLＣD_ＣOＮ_ＤIR|=0xFF；／/p2口定义为输出ﻩｗriｔe_ｃommaｎd(0ｘ０1）；/／清屏ﻩｗritｅ_coｍmaｎｄ(0ｘ30）;ﻩ_ｄelaｙ_cycles(５00０)； wrｉtｅ_coｍmanｄ(0ｘ０c）;ﻩ_ｄelay_cycｌes(5000);}／*＊＊********＊＊＊***＊*****＊*＊＊*＊＊*＊＊**＊＊＊*＊*****＊***＊******＊＊*＊**＊*＊＊＊＊＊**＊＊***采集到旳数据转化成电压形式*＊＊＊****＊***＊**＊**＊**＊＊*****＊*＊*****＊*＊*＊＊********＊＊*＊***************＊***＊***/voiｄＴｒanｓ_ｖaｌ(ｕintHｅx_Vaｌ){ﻩunsigｎedlｏngcａltmp;ﻩuiｎｔCｕrｒ_Ｖｏlt,ｖｏｌｔ,max;ﻩｕiｎta［５0];ﻩｃａlｔｍp=Heｘ_Val;cａltmp＝calｔｍp*3４６0０;//cａltmp=Ｈex＿Val＊34600Curｒ＿Vｏlt=caｌtmｐ>>10；／/Cuｒｒ_Vｏlt＝cａltｍｐ／2^nvｏｌｔ＝Cｕｒｒ_Volｔ；for(i＝０；ｉ＜50；i+＋）{ａ[ｉ]＝vｏlt;}for(mａｘ＝a[0],i=０;i<50；i+＋){if（a[i]>mａｘ)ｍａx=a[i]；｝Cuｒｒ_Vｏlt=max;Disｐｌａy_Vｏlte(Cｕrr_Volｔ);}/＊＊*＊*＊******＊**＊***＊*****＊*＊**＊*＊****＊**＊*＊＊**＊＊**＊****＊***＊*＊**＊******＊****主函数**＊****＊＊**＊******＊＊******＊＊＊＊＊＊***＊＊＊＊*＊*＊＊＊****＊*＊**＊**＊＊*＊***＊＊*****＊***＊*／voｉｄｍaiｎ（ｖoid)｛ﻩWDTCＴＬ=WDTＰW+ＷDＴＨOLＤ；ﻩＡDC＿Iniｔ();／/AＤC初始化ﻩDCＯ_Ｉｎit();//DＣO初始化 IniｔLＣD(）;//12864液晶初始化ﻩwhilｅ（１)ﻩ｛ ﻩMeaｓｕre_Ｖｏlｔe();//测量直流电压值并且显示ﻩ}}／***********＊＊＊＊＊*＊＊**＊****＊＊*＊****＊**＊＊＊*****＊***＊**＊＊************＊**＊*＊****测量电压*＊****＊＊＊*＊*＊＊**＊****＊**＊********＊＊*******＊*＊**＊＊＊********＊****＊**＊**＊*＊*****／vｏidMeａsｕｒe_Volte(vｏiｄ){ﻩＡDＣ10ＣＴL0｜=ENC+ＡDＣ10SＣ;//Sampliｎｇandcoｎveｒsionstart _＿ｂis_ＳＲ_register（CPUOＦF+GＩE)；ﻩｒesｕｌｔｓ［iｎｄex+＋]＝ＡDC1０ＭEM;/／Moｖｅresultsﻩｉf(index=＝Ｎｕm_of_Ｒeｓultｓ） { ﻩindex=0; ﻩfor(ｉ=0;i<Num_of_Resultｓ;i+＋) ﻩ{ﻩ ﻩｓum+=ｒeｓults［i]; ﻩ｝ﻩ ｓum>＞=５;／/除以32ﻩﻩTｒａｎｓ_ｖａl（sｕm)； ﻩｓum=０;ﻩ｝}/＊**＊****＊*＊***＊**＊*＊**＊************＊*＊******＊***＊＊***＊＊*＊＊***＊**＊*＊＊**＊**＊＊*显示电压值＊＊＊**************＊****＊*＊**＊****＊****＊＊*******＊***＊*＊********＊****＊*＊＊***＊***／voiｄDisplay_Volｔe(uｉntHｅｘ_Val)｛ﻩuiｎｔCurｒ＿Ｖｏlt; Ｃｕrr＿Volt=Ｈex_Vａl;ﻩｗr