在AVR单片机上实现DMX512协议dmx512-avr

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1、50000/*1.ThisProgramUse1CCAVR6.31ACompi1eSystem*//*2.MakeUseOfAttiny2313SinglechipFosc=16MHz*//*3.LastModified:2006-09-1615:54*//*4VersionNumber:VI.0*//*5.Editor:LONGCIIUANLAO.*//*二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二二*/ftinclude#inelude#defineUintunsignedint#

2、defineULintunsignedlongint#defineUcharunsignedchar//1ms-―1333//#defineMax_Levcl255#defineImageOxAAftdefineWrite_Code0xC3#dcfineSwitch_Bus0xD4#defineDmx0x00#definePixel0x10//前导码//#defineSeven_ColorChan£e_TimeUcharconstVerify[8]={0x01,0x23,0x45,0x67,0x89,OxAB,OxCD,OxEF,}；UintScct_Charmcl_Count;Uint

3、Sectl_Start_Channel[4];UintSeven_Color_Change_Count;//=——=7/UcharNodes;UcharRow_Numbcr;UcharCol_Number;UintAddress_Number;//=//UcharMode;UcharStep;UcharChoose;UcharPass_Fg;UcharByte_Count;UcharGray_Levcl_Count////charCycle;UcharArray[3];UcharRcad_Ecprom(UcharAddress){"while(EECR&0x02);EEAR二Addres

4、s;EECR

5、二0x01;rcturnEEDR;voidWrite_Eeprom(UcharAddress,UcharDatum){"while(EECR&0x02);EEAR=Address;EEDR=Datum;EECR

6、二0x04;EECR

7、二0x02;}voidport_init(void){"PORTA二OxFF;DDRA二OxFF;PORTB=OxFF;DDRB=OxFF;PORTD=OxFF;DDRD二OxFF;}//UARTOinitialize//desiredbaudrate:250000//actual:baudrate:250000(0.0%)//charsize

8、:9bit//parity:Disablevoiduart0_init(void){"UCSRB二0x00;//disablewhilesettingbaudrateUBRRH二0x00;//setbaudrateupperUBRRL=0x03;//setbaudratelowerUCSRA=0x00;UCSRC=0x06;UCSRB二0x9C;//enablevoidInitDevices(void){"//stoperrantinterruptsuntilsetupCLI();//disableallinterruptsport_init();uartOinit();WDR();//

9、thispreventsatimoutonenablingWDTCR=0x18;//WATCHDOGENABLED-dontforgetWDRWDTCR=OxOA;//64msMCUCR二0x00;GTMSK二0x00;TIMSK=0x00;SEI();//re-enableinterrupts//allperipheralsarenowinitializedvoidGray_Scan_Disp(void){if(--GrayLevelCount==0x00)GrayLevelCount二MaxLevel//////PB2——―Red0x04OxFB//PB3——Green0x080xF

10、7//PB4——Blue0x10OxEF/*if(Gray_Level_Count>Array[0])PORTB&二OxFB;elsePORTB

11、=0x04;if(Gray_Level_Count>Array[1])PORTB&二0xF7;elsePORTB

12、=0x08;if(Gray_Level_Count>Array[2])PORTB&二OxEF;elsePORTB

13、=0x10;//PB5Red0x20OxDF//PB6Gree