?? adc25o.c
字號:
// ICC-AVR application builder : 2008-2-27 14:12:33
// Target : M8
// Crystal: 8.0000Mhz
#include <iom8v.h>
#include <macros.h>
#include <math.h>
#define ADBufLen 15 //AD循環緩沖區長度(字)
int ADBuf[4][ADBufLen]; //
unsigned char ADBufCnt; //AD緩沖區計數(0~ADBufLen-1)
unsigned char ADBufCntHold;
unsigned char ADMuxCnt; //AD通道轉換計數(0~7)
//AD通道選擇表
unsigned char ADMux[4]={0x00,0x01,0x02,0x03};
unsigned char inBuf,d;
unsigned char sentBuf[13],recveBuf[20],inCnt;
unsigned int Data[4]; //
unsigned char DaBufCnt;
unsigned char SentEn;
int uint16;
#define iKey (1<<5)
unsigned char DKey,KeyUCnt,KeyDCnt;
//軟件看門狗標志
unsigned char WDF;
#define wdf_ad (1 << 7)
#define wdf_t2 (1 << 6)
#define wdf_main (1 << 5)
/* CRC16 MODE Begin */
unsigned char CRC[2];
static const unsigned char aucCRCHi[] = {
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40
};
static const unsigned char aucCRCLo[] = {
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7,
0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E,
0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9,
0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC,
0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32,
0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D,
0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A, 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38,
0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF,
0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1,
0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4,
0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F, 0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB,
0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA,
0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0,
0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97,
0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C, 0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E,
0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89,
0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83,
0x41, 0x81, 0x80, 0x40
};
/* CRC16 retrun CRC[0]<--ucCRCLo;CRC[1]<--ucCRCHi */
void usCRC16( unsigned char * pucFrame, unsigned int usLen )
{
unsigned char ucCRCHi = 0xFF;
unsigned char ucCRCLo = 0xFF;
int iIndex;
while( usLen-- )
{
iIndex = ucCRCLo ^ *( pucFrame++ );
ucCRCLo = ( unsigned char )( ucCRCHi ^ aucCRCHi[iIndex] );
ucCRCHi = aucCRCLo[iIndex];
}
CRC[1]= ucCRCHi;
CRC[0]= ucCRCLo;
}
/* CRC16 MODE End */
void put_c(unsigned char c) //發送采用查詢方式
{
while( !(UCSRA & (1<<UDRE)) );
UDR=c;
}
void put_s(unsigned char *ptr,unsigned char len)
{
do{
put_c(*ptr);
ptr++;
len--;
}while (len!=0);
}
/* 雙字節無符號數去極值平均濾波法子程序 */
//unsigned int arr[5]; // 15個數據臨時寄存器
unsigned int average(unsigned char ADMuxCnt )
{
unsigned char i,j;
unsigned int temp=0,max=0,min=0x3ff;
for(i=0;i<5;i++){
j=(ADBufCnt+10+i)<15?ADBufCnt+i:ADBufCnt+i-5;
if(max<ADBuf[ADMuxCnt][j]) { max=ADBuf[ADMuxCnt][j]; }
else if(min>ADBuf[ADMuxCnt][j]){ min=ADBuf[ADMuxCnt][j]; }
temp+=ADBuf[ADMuxCnt][j];
}
temp=(temp-max-min)/3;
return (temp);
}
void port_init(void)
{
PORTB = 0x00;
DDRB = 0x00;
PORTC = 0x20; //m103 output only
DDRC = 0x00;
PORTD = 0x03;
DDRD = 0x02;
}
//TIMER0 initialize - prescale:256
// desired value: 125Hz
// actual value: 125.000Hz (0.0%)
void timer0_init(void)
{
TCCR0 = 0x00; //stop
TCNT0 = 0x06; //set count
TCCR0 = 0x04; //start timer
}
#pragma interrupt_handler timer0_ovf_isr:10
void timer0_ovf_isr(void)
{
unsigned char i;
TCNT0 = 0x06; //reload counter value
//啟動AD轉換
ADBufCnt++; //AD緩沖計數器處理
ADMuxCnt=0;
ADMUX&=0xF0;
ADMUX|=ADMux[ADMuxCnt];
if(ADBufCnt>=ADBufLen) ADBufCnt=0;
ADCSR|=1<<ADIE;
ADCSR|=1<<ADSC; //開始AD轉換
if(!(PINC&iKey))
{
if(KeyDCnt<10)KeyDCnt++;else {DKey=0;KeyUCnt=0;}
}else
{
if(KeyUCnt<10)KeyUCnt++;else{DKey=1;KeyDCnt=0;}
}
/* 30Hz 5點雙字節無符號數去極值平均濾波 */
if(SentEn==1){
if((ADBufCnt%5)==0){
for(i=0;i<4;i++) Data[i] = average(i);
sentBuf[0]=0x5A;
sentBuf[1]='R';
for(i=0;i<4;i++){
uint16=Data[i];
sentBuf[2*i+3] = uint16;
sentBuf[2*i+2]= uint16>>8;
}
sentBuf[10]=DKey;
usCRC16(sentBuf,11);
sentBuf[11]=CRC[1];
sentBuf[12]=CRC[0];
put_s(sentBuf,13);
}
}
/* */
//WDF|=wdf_ad;
}
//UART0 initialize
// desired baud rate: 9600
// actual: baud rate:9615 (0.2%)
// char size: 8 bit
// parity: Disabled
void uart0_init(void)
{
UCSRB = 0x00; //disable while setting baud rate
UCSRA = 0x00;
UCSRC = BIT(URSEL) | 0x06;
UBRRL = 0x33; //set baud rate lo
UBRRH = 0x00; //set baud rate hi
UCSRB = 0x98;
}
#pragma interrupt_handler uart0_rx_isr:12
void uart0_rx_isr(void)
{
//uart has received a character in UDR
inBuf = UDR;
if(inBuf==0x5A){inCnt=0;recveBuf[0]=inBuf;}
else {
inCnt++;
recveBuf[inCnt]=inBuf;
}
}
//ADC initialize
// Conversion time: 104uS
void adc_init(void)
{
ADCSR = 0x00; //disable adc
ADMUX = 0x00; //select adc input 0
ACSR = 0x80; //關閉 比較器
ADCSR = (1<<ADEN)|(1<<ADIE)|0x06; //128
}
//IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
// ADC中斷子程序
//IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
#pragma interrupt_handler adc_isr:15
void adc_isr(void)
{
//conversion complete, read value (int) using...
// value=ADCL; //Read 8 low bits first (important)
// value|=(int)ADCH << 8; //read 2 high bits and shift into top byte
ADBuf[ADMuxCnt][ADBufCnt]=ADCL;
ADBuf[ADMuxCnt][ADBufCnt] |=(((int)ADCH&0x03)<<8);
if(ADMuxCnt<3){
ADMuxCnt++; //選通下個通道
ADMUX&=0xF0;
ADMUX|=ADMux[ADMuxCnt];
ADCSR|=(1<<ADSC); //開始AD轉換
}
else
ADCSR&=~(1<<ADIE); //關閉ADC中斷
//WDF|=wdf_ad;
}
void watchdog_init(void)
{
WDR();
WDTCR = 0x0F;
}
//call this routine to initialize all peripherals
void init_devices(void)
{
//stop errant interrupts until set up
CLI(); //disable all interrupts
port_init();
timer0_init();
uart0_init();
adc_init();
// watchdog_init();
MCUCR = 0x00;
GICR = 0x00;
TIMSK = 0x01; //timer interrupt sources
SEI(); //re-enable interrupts
//all peripherals are now initialized
}
// 主程序入口
void main(void)
{
unsigned int i,j,k;
init_devices();
//insert your functional code here...
//put_s("4路模擬+1路用戶按鍵板");
SentEn=0;
/* ++++++++++++++++++++
sentBuf[0]=0x5A;
sentBuf[1]='S';
usCRC16(sentBuf,2);
sentBuf[2]=CRC[1];
sentBuf[3]=CRC[0];
put_s(sentBuf,4);
sentBuf[0]=0x5A;
sentBuf[1]='R';
usCRC16(sentBuf,2);
sentBuf[2]=CRC[1];
sentBuf[3]=CRC[0];
put_s(sentBuf,4);
=======================*/
while(1)
{
if(inCnt>=3){
if(recveBuf[0]==0x5A){
usCRC16(recveBuf,2);
if((recveBuf[2]==CRC[1])&&(recveBuf[3]==CRC[0])){
if(recveBuf[1]=='S'){
SentEn=0;
sentBuf[0]=0x5A;
sentBuf[1]='S';
sentBuf[2]='4';
sentBuf[3]='A';
sentBuf[4]='D';
sentBuf[5]='+';
sentBuf[6]='1';
sentBuf[7]='K';
sentBuf[8]='K';
sentBuf[9]='e';
sentBuf[10]='y';
usCRC16(sentBuf,11);
sentBuf[11]=CRC[1];
sentBuf[12]=CRC[0];
put_s(sentBuf,13);
}
if(recveBuf[1]=='R'){ SentEn=1; }
}
recveBuf[0]=0x00;
inCnt=0;
}
}
}
}
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