AVR.rar_AVR 模拟从机_SPI 单片机_avr_twi avr_单片机 模拟PWM

#include<iom16v.h> #include<macros.h> #define uchar unsigned char #define uint unsigned int #define set(x) PORTD|=(1<<x) #define clr(x) PORTD&=~(1<<x) #define _nop_() NOP() #define set_csn() PORTB|=(1<<4) #define clr_csn() PORTB&=~(1<<4) uchar pwr=6,trxce=5,txen=4; uchar read_config[4]={0xff,0xff,0xff,0xff}; void Delay(uint z) { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void IOInit() { DDRA=0XFF; //DDRB=0XFF; DDRC=0XFF; DDRD=0XFF; PORTA=0xff; } void SpiInit() { uchar temp; DDRB|=0XB0; PORTB&=0X5F; /*SPSR=0X00; temp=SPSR; temp=SPDR;*/ SPCR=0X51; } void SpiWrite(uchar datas) { SPDR=datas; while(!(SPSR&(0X80))); //datas=SPDR; } uchar SpiRead() { //PORTC=0X00; //Delay(1000); SPDR=0X00; while(!(SPSR&(0x80))); //PORTC=0XFF; return SPDR; } uchar SpiWriteRead(uchar datas) { SPDR=datas; while(!(SPSR&(0x80))); return SPDR; } unsigned char RFConf[11]={ 0x00, //?????邦芍?// 0x6C, //CH_NO,?????米???迆433.2MHZ 0x0C, //那?3?1|?那?a10db,2???﹞⊿㏒??迆米??a?y3㏒?㏒那? 0x44, //米??﹞?赤?豕谷豕??㏒??a4℅??迆 0x04,0x04, //?車那?﹞⊿?赤車DD∫那y?Y3∟?豕?a3℅??迆 0xCC,0xCC,0xCC,0xCC, //?車那?米??﹞ 0x58, //CRC3?D赤㏒?16??CRCD㏒?谷㏒?赤a2?那㊣?車D?o?那1?邦㏒?16M?∫??//UP_CLK那?3?1MHZ?米?那 }; void NrfDelay(uint x) { uint i; for(i=0;i<x;i++){ _nop_(); } } void NrfInit(void) { uchar i; set(pwr); clr(trxce); clr(txen); set_csn(); _nop_(); _nop_(); //CSN=0; //??豕?SIP?㏒那? clr_csn(); for(i=0;i<11;i++) { SpiWrite(RFConf[i]); //谷豕????????∩??‾ } // CSN=1; //1?㊣?SPI㏒???豕??車那?℅∩足? set_csn(); set(pwr); //TRX_CE=1; clr(txen); NrfDelay(1000); } void TestConfig() { uchar j; set(pwr); set(txen); clr(trxce); //CSN=1; set_csn(); _nop_();_nop_(); //CSN=0; clr_csn(); SpiWriteRead(0x22); //D∩﹞⊿?赤米??﹞,o車???迆4℅??迆米??﹞// SpiWriteRead(0xCC); SpiWriteRead(0xCC); SpiWriteRead(0xCC); SpiWriteRead(0xCC); // CSN=1; set_csn(); _nop_();_nop_(); //CSN=0; clr_csn(); SpiWrite(0x20); //D∩﹞⊿?赤那y?Y?邦芍?,o車???迆豕y℅??迆那y?Y// SpiWrite(0x51); SpiWrite(0x52); SpiWrite(0x53); SpiWrite(0x54); //CSN=1; //set_csn(); _nop_();_nop_(); //CSN=1; set_csn(); _nop_();_nop_(); Delay(100); //CSN=0; clr_csn(); Delay(1); SpiWrite(0x21); for(j=0;j<4;j++) { read_config[j]=SpiWriteRead(0x00); //SerialSend(read_config[j]); } set_csn(); //CSN=1; } void main() { uchar i; IOInit(); SpiInit(); //NrfInit(); TestConfig(); while(1) { for(i=0;i<4;i++) { PORTA=read_config[i]; Delay(10000); } } }