关键词：UART, I2C, 7segments led, EEPROM R/W, RealTime Clock with DS1307
Nuvoton-N76E003-main.zip
(71.15 KB)
#include "main.h"
void fn8051ADCBypass (void){
unsigned char i;
for (i=0;i<0x03;i++){
clr_ADCF;
set_ADCS;
while(ADCF == 0);
}
}
void fn8051I2CStart(void){
SCL = 1; SCL = 0;
SDA = 1; SCL = 1;
fn8051SYSDelay(1);
SDA = 0; fn8051SYSDelay(1);
SCL = 0; fn8051SYSDelay(1);
}
void fn8051I2CStop(void){
SCL = 1; SCL = 0;
SDA = 0; fn8051SYSDelay(1);
SCL = 1; fn8051SYSDelay(1);
SDA = 1;
}
bit fn8051I2CWrite(unsigned char dat){
unsigned char i;
for (i=0;i<8;i++){
SDA = (dat & 0x80) ? 1:0;
SCL=1;SCL=0;
dat<<=1;
}
SCL = 1; fn8051SYSDelay(1);
SCL = 0;
return dat;
}
unsigned char fn8051I2CRead(void){
bit rd_bit;
unsigned char i, dat;
dat = 0x00;
for(i=0;i<8;i++) /* For loop read data 1 byte */
{
fn8051SYSDelay(1);
SCL = 1; fn8051SYSDelay(1); /* Set SCL */
rd_bit = SDA; /* Keep for check acknowledge */
dat = dat<<1;
dat = dat | rd_bit; /* Keep bit data in dat */
SCL = 0; /* Clear SCL */
}
return dat;
}
void fn8051DS1307Out_1Hz()
{
fn8051I2CStart(); /* Start i2c bus */
fn8051I2CWrite(0xD0); /* Connect to DS1307 */
fn8051I2CWrite(0x07); //RTC pointer location
fn8051I2CWrite(0x10);
fn8051I2CStop();
}
unsigned char fn8051DS1307Readdata(unsigned char addr)
{
unsigned int temp,ret;
fn8051I2CStart(); /* Start i2c bus */
fn8051I2CWrite(0xD0); /* Connect to DS1307 */
fn8051I2CWrite(addr); /* Request RAM address on DS1307 */
fn8051I2CStart(); /* Start i2c bus */
fn8051I2CWrite(0XD1); /* Connect to DS1307 for Read */
ret = fn8051I2CRead(); /* Receive data */
fn8051I2CStop();
//**********************************************************
temp = ret; /*BCD to HEX*/
ret = (((ret/16)*10)+ (temp & 0x0f)); /*for Led 7seg*/
//**********************************************************
return ret;
}
void fn8051DS1307Writedata(unsigned char addr,unsigned char dat)
{
unsigned int temp;
//**********************************************
temp = dat ; /*HEX to BCD*/
dat = (((dat/10)*16)|(temp %10)); /*for Led 7seg*/
//**********************************************
fn8051I2CStart()
; /* Start i2c bus */
fn8051I2CWrite(0XD0); /* Connect to DS1307 */
fn8051I2CWrite(addr); /* Request RAM address on DS1307 */
fn8051I2CWrite(dat); /* Connect to DS1307 for Read */
fn8051I2CStop();
}
void fn8051DS1307ReadTime()
{
vrcGlb8051DS1307Sec = fn8051DS1307Readdata(SEC);
vrcGlb8051DS1307Min = fn8051DS1307Readdata(MIN);
vrcGlb8051DS1307Hour = fn8051DS1307Readdata(HOUR);
}
void fn8051DS1307WriteTime()
{
fn8051DS1307Writedata(SEC,vrcGlb8051DS1307Sec);
fn8051DS1307Writedata(MIN,vrcGlb8051DS1307Min);
fn8051DS1307Writedata(HOUR,vrcGlb8051DS1307Hour);
}
int main (){
Set_All_GPIO_Quasi_Mode;
fn8051ITRRegSettup();
fn8051DS1307Out_1Hz();
//fn8051ADCBypass();
do{
fn80517segledSenddt595(0x92,1,0);
fn8051SYSDelay(5);
fn80517segledSenddt595(0x06,2,0);
fn8051SYSDelay(5);
fn80517segledSenddt595(0xc7,3,0);
fn8051SYSDelay(5);
fn80517segledSenddt595(0x06,4,0);
fn8051SYSDelay(5);
}while(pni8051ButtonSeclect!=0);
fn8051SYSModeselect();
while(1){
if(vrucGlb8051SYSChangemode == 0){
while(vrucGlb8051SYSCurrentmode==1&&vrucGlb8051SYSChangemode==0){
fn80517segledFloatdisplay(vrfGlb8051ADCVadcP05);
if((pni8051ButtonSeclect)==0&(pni8051ButtonDown==0)) {
vrucGlb8051SYSChangemode = 1;
}
}
while((vrucGlb8051SYSCurrentmode==2)&(vrucGlb8051SYSChangemode==0)){
ET1 = 1;
fn8051DS1307ReadTime();
if((pni8051ButtonSeclect)==0&(pni8051ButtonDown==0)) {
vrucGlb8051SYSChangemode = 1;
ET1 = 0;
}
if((pni8051ButtonSeclect)==0&(pni8051ButtonUp==0)) {
fn8051SYSDelay(500);
if((pni8051ButtonSeclect)==0&(pni8051ButtonUp==0)){
fn8051DS1307timesetup();
}
}
if(pni8051ButtonSeclect ==0){
fn8051SYSDelay(2000);
if(pni8051ButtonSeclect ==0){
fn8051APROMwriteTime();
}
}
}
while(vrucGlb8051SYSCurrentmode==3&&vrucGlb8051SYSChangemode==0){
fn8051APROMReadandDisplay();
if((pni8051ButtonSeclect==0)&(pni8051ButtonDown==0)) {
vrucGlb8051SYSChangemode = 1;
}
if(pni8051ButtonSeclect ==0){
fn8051SYSDelay(2000);
if(pni8051ButtonSeclect ==0){
fn8051APROMWriteADC();
}
}
}
}
else{
while(vrucGlb8051SYSChangemode == 1){
fn8051SYSModeselect();
}
}
}
}
void fn8051ITRRegSettup (){
TMOD = 0x11;
TH0 = 0xC1;
TL0 = 0x80;
TH1 = 0xE0;
TL1 = 0xC0;
set_T0M;
ET0 = 1;
EA = 1;
TR0 = 1;
TF0 = 0;
TF1 = 0;
TR1 = 1;
}
void fn8051ITRVector1(void) interrupt 1{ //timer 1ms
unsigned int vri8051LedblinkCount ;
unsigned int vruc8051ADCAdctimer1 ;
vri8051LedblinkCount++;
if(vri8051LedblinkCount >1000){ //timer 1 s
pnobl8051ledalert = ~pnobl8051ledalert;
vri8051LedblinkCount = 0;
}
if(vrucGlb8051SYSCurrentmode == 1){
if(ADCS == 1) {vruc8051ADCAdctimer1 = 0;}
else{
vruc8051ADCAdctimer1++;
if(vruc8051ADCAdctimer1 > 100) {
fn8051ADCAdcmain();
vruc8051ADCAdctimer1=0;
}
}
}
//TF0 = 0;
TH0 = 0xC1;
TL0 = 0x80;
}
void fn8051ITRVector3(void) interrupt 3{ //timer 0,5ms
unsigned char vruc8051DS1307indexcounter;
signed char hour1,hour2,min3,min4;
vruc8051DS1307indexcounter++;
if(vruc8051DS1307indexcounter>1){
vrucGlb8051DS1307Led_ctrlindex--;
vruc8051DS1307indexcounter = 0;
if(vrucGlb8051DS1307Led_ctrlindex<1){vrucGlb8051DS1307Led_ctrlindex = 4;}
}
if(vrcGlb8051DS1307Hour<10){
hour1 = 0;
hour2 = vrcGlb8051DS1307Hour;
}
else{
hour1 = vrcGlb8051DS1307Hour/10;
hour2 = vrcGlb8051DS1307Hour-(hour1*10);
}
if(vrcGlb8051DS1307Min<10){
min4 = vrcGlb8051DS1307Min ;
min3 = 0;
}
else{
min3 = vrcGlb8051DS1307Min/10;
min4 = vrcGlb8051DS1307Min-(min3*10);
}
if (vrucGlb8051DS1307Led_ctrlindex ==1){
fn80517segledSenddt595(vraGlb80517segledcharacter[hour1],vrucGlb8051DS1307Led_ctrlindex,0);
}
if (vrucGlb8051DS1307Led_ctrlindex ==2){
fn80517segledSenddt595(vraGlb80517segledcharacter[hour2],vrucGlb8051DS1307Led_ctrlindex,1);
}
if (vrucGlb8051DS1307Led_ctrlindex ==3){
fn80517segledSenddt595(vraGlb80517segledcharacter[min3],vrucGlb8051DS1307Led_ctrlindex,0);
}
if (vrucGlb8051DS1307Led_ctrlindex ==4){
fn80517segledSenddt595(vraGlb80517segledcharacter[min4],vrucGlb8051DS1307Led_ctrlindex,1);
}
TH1 = 0xF9;
TL1 = 0xC0;
}
void fn8051SYSDelay(signed int time){//delay 1ms
signed int t,c;
for(c=0;c<time;c++){
for(t=0;t<1600;t++){
}
}
}
signed char fn8051ButtonBTread(){
if (pni8051ButtonDown==0){
fn8051SYSDelay(100);
return -1;
}
if (pni8051ButtonUp==0){
fn8051SYSDelay(100);
return 1;
}
else return 0;
}
void fn8051SYSModeselect(){
fn8051SYSDelay(200);
while(pni8051ButtonSeclect!=0){
vrucGlb8051SYSCurrentmode += fn8051ButtonBTread();
if (vrucGlb8051SYSCurrentmode>3) {vrucGlb8051SYSCurrentmode = 1;}
if (vrucGlb8051SYSCurrentmode<1) {vrucGlb8051SYSCurrentmode = 3;}
fn80517segledSenddt595(vraGlb80517segledcharacter[0],3,1);
fn8051SYSDelay(5);
fn80517segledSenddt595(vraGlb80517segledcharacter[vrucGlb8051SYSCurrentmode],4,0);
fn8051SYSDelay(5);
}
vrucGlb8051SYSChangemode = 0;
}
void fn80517segledSenddt595(unsigned char vruc80517segleddata,signed char vrc80517segselectled, char dotpoint ){ //7segment led display by timer
unsigned char i,Q;
Q = vruc80517segleddata;
for(i=0;i<8;i++){
if((dotpoint==1)&(i==0)){pnoGlb80517segmentSDI=0;}
else
pnoGlb80517segmentSDI = Q & (0x80>>i);
pnoGlb80517segmentCLK = 0;
pnoGlb80517segmentCLK = 1;
}
pnoGlb80517segmentSTR = 0;
pnoGlb80517segmentSTR = 1;
if(vrc80517segselectled == 1 ){
pnobl80517segledCtr_L1 = 1;
pnobl80517segledCtr_L2 = pnobl80517segledCtr_L3 = pnobl80517segledCtr_L4 = 0;
}
if(vrc80517segselectled == 2 ){
pnobl80517segledCtr_L2 = 1;
pnobl80517segledCtr_L1 = pnobl80517segledCtr_L3 = pnobl80517segledCtr_L4 = 0;
}
if(vrc80517segselectled == 3 ){
pnobl80517segledCtr_L3 = 1;
pnobl80517segledCtr_L1 = pnobl80517segledCtr_L2 = pnobl80517segledCtr_L4 = 0;
}
if(vrc80517segselectled == 4 ) {
pnobl80517segledCtr_L4 = 1;
pnobl80517segledCtr_L1 = pnobl80517segledCtr_L3 = pnobl80517segledCtr_L2 = 0;
}
}
//void fn8051DS1307timedisplay() {
//}
void fn8051DS1307timesetup(){
fn80517segledSenddt595(0xff,1,1);
vrcGlb8051DS1307Sec = 0;
vrcGlb8051DS1307Hour = 12;
vrcGlb8051DS1307Min = 30;
do{
vrcGlb8051DS1307Min +=fn8051ButtonBTread();
if(vrcGlb8051DS1307Min>59) { vrcGlb8051DS1307Min=0; }
if(vrcGlb8051DS1307Min==0) { vrcGlb8051DS1307Min=59; }
if(pni8051ButtonSeclect==0) {
fn8051SYSDelay(500);
}
}while(pni8051ButtonSeclect!=0);
do{
vrcGlb8051DS1307Hour+=fn8051ButtonBTread();
if(vrcGlb8051DS1307Hour==0) { vrcGlb8051DS1307Hour=23; }
if(vrcGlb8051DS1307Hour>23){ vrcGlb8051DS1307Hour=0; }
if(pni8051ButtonSeclect==0){ fn8051SYSDelay(500); }
}while(pni8051ButtonSeclect!=0);
fn8051DS1307WriteTime();
}
void fn8051APROMwrite(unsigned char vruc80517APROMdata,signed char vruc80517APROMaddress ){ //APROM Write
EA = 0;
TA = 0xAA;
TA = 0x55;
CHPCON |= 0x01;
TA = 0xAA;
TA = 0x55;
IAPUEN |= 0x02; //enable LDROM update
TA = 0xAA;
TA = 0x55;
IAPTRG |= 0x01; //trig IAP GO
IAPCN = vc8051LDROMByteProgram;
IAPAH = 0x00;
IAPAL = vruc80517APROMaddress;
IAPFD = vruc80517APROMdata;
TA = 0xAA;
TA = 0x55;
IAPTRG |= 0x01; //trig IAP GO
TA = 0xAA; //IAPUEN is TA protected
TA = 0x55;
IAPUEN &= ~0x02; //disable LDROM update
TA = 0xAA; //CHPCON is TA protected
TA = 0x55;
CHPCON &= ~0x01;// disable IAP
EA = 1;
}
unsigned char fn8051APROMread(signed char vruc80517APROMaddress){
unsigned char Q;
EA = 0;
TA = 0xAA;
TA = 0x55;
CHPCON |= 0x01;
TA = 0xAA;
TA = 0x55;
IAPTRG |= 0x01;
IAPCN = vc8051LDROMByteRead;
IAPAH = 0x00;
IAPAL = vruc80517APROMaddress;
Q = IAPFD;
TA = 0xAA;
TA = 0x55;
IAPTRG |= 0x01;//write �1� to IAPGO to trigger IAP process
TA = 0xAA; //IAPUEN is TA protected
TA = 0x55;
IAPUEN &= ~0x02;
TA = 0xAA; //CHPCON is TA protected
TA = 0x55;
CHPCON &= ~0x01; //IAPEN = 0, disable IAP mode
EA = 1;
return Q;
}
void fn8051APROMwriteTime(){
signed char hour1,hour2,min3,min4;
if(vrcGlb8051DS1307Hour<10){
hour1 = 0;
hour2 = vrcGlb8051DS1307Hour;
}
else{
hour1 = vrcGlb8051DS1307Hour/10;
hour2 = vrcGlb8051DS1307Hour-(hour1*10);
}
if(vrcGlb8051DS1307Min<10){
min4 = vrcGlb8051DS1307Min ;
min3 = 0;
}
else{
min3 = vrcGlb8051DS1307Min/10;
min4 = vrcGlb8051DS1307Min-(min3*10);
}
EA = 0;
TA = 0xAA; //TA protect
TA = 0x55;
CHPCON |= 0x01; //enable IAP
TA = 0xAA;
TA = 0x55;
IAPUEN |= 0x02; //enable LDROM update
IAPCN = vc8051LDROMPageErase;
IAPAH = 0x00;
IAPAL = 0x00;
IAPFD = 0xff;
fn8051APROMwrite(hour1,0x00);
fn8051APROMwrite(hour2,0x01);
fn8051APROMwrite(min3,0x02);
fn8051APROMwrite(min4,0x03);
EA =1 ;
}
void fn8051APROMReadandDisplay(){
char i,vrc8051APROMNguyen,vrc8051APROMTPhan1,vrc8051APROMTPhan2;
unsigned char vrc8051APROMmode =0;
vrc8051APROMmode+=fn8051ButtonBTread();
if(vrc8051APROMmode>1) {vrc8051APROMmode = 0;}
if(vrc8051APROMmode == 0){
for(i=1;i<5;i++){
fn80517segledSenddt595(vraGlb80517segledcharacter[fn8051APROMread(0x00+i-1)],i,0);
fn8051SYSDelay(4);
}
}
if(vrc8051APROMmode == 1){
vrc8051APROMNguyen = fn8051APROMread(0x04);
vrc8051APROMTPhan1 = fn8051APROMread(0x05);
vrc8051APROMTPhan2 = fn8051APROMread(0x06);
fn80517segledSenddt595(vraGlb80517segledcharacter[vrc8051APROMNguyen],i,1);
fn8051SYSDelay(4);
fn80517segledSenddt595(vraGlb80517segledcharacter[vrc8051APROMTPhan1],i,0);
fn8051SYSDelay(4);
fn80517segledSenddt595(vraGlb80517segledcharacter[vrc8051APROMTPhan2],i,0);
fn8051SYSDelay(4);
}
}
void fn80517segledFloatdisplay(float vrf80517segledFin){
float Q;
unsigned char nguyen,tphan1,tphan2;
Q = vrf80517segledFin;
nguyen = (unsigned char)(Q/1000);
tphan1 = (unsigned char)((Q - nguyen*1000)/100);
tphan2 = (unsigned char)((Q - (nguyen*1000+tphan1*100))/10);
fn80517segledSenddt595(vraGlb80517segledcharacter[nguyen],2,1);
fn8051SYSDelay(3);
fn80517segledSenddt595(vraGlb80517segledcharacter[tphan1],3,0);
fn8051SYSDelay(3);
fn80517segledSenddt595(vraGlb80517segledcharacter[tphan2],4,0);
fn8051SYSDelay(3);
}
void fn8051ADCRead_bandgap(){ //IAP read
unsigned char BandgapHigh,BandgapLow,BandgapMark;
float Bandgap_Value,Bandgap_Voltage_Temp;
set_IAPEN;
IAPCN = 0x04;
IAPAL = 0x0d;
IAPAH = 0x00;
set_IAPGO;
BandgapLow = IAPFD;
BandgapMark = BandgapLow&0xF0;
if (BandgapMark==0x80)
{
BandgapLow = BandgapLow&0x0F;
IAPAL = 0x0C;
IAPAH = 0x00;
set_IAPGO;
BandgapHigh = IAPFD;
Bandgap_Value = (BandgapHigh<<4)+BandgapLow;
Bandgap_Voltage_Temp = Bandgap_Value*3/4;
}
if (BandgapMark==0x00)
{
BandgapLow = BandgapLow&0x0F;
IAPAL = 0x0C;
IAPAH = 0x00;
set_IAPGO;
BandgapHigh = IAPFD;
Bandgap_Value = (BandgapHigh<<4)+BandgapLow;
vrfGlb8051ADCBandgap_Voltage= Bandgap_Value*3/4;
}
if (BandgapMark==0x90)
{
IAPAL = 0x0E;
IAPAH = 0x00;
set_IAPGO;
BandgapHigh = IAPFD;
IAPAL = 0x0F;
IAPAH = 0x00;
set_IAPGO;
BandgapLow = IAPFD;
BandgapLow = BandgapLow&0x0F;
Bandgap_Value = (BandgapHigh<<4)+BandgapLow;
vrfGlb8051ADCBandgap_Voltage= Bandgap_Value*3/4;
}
clr_IAPEN;
}
void fn8051ADCAdcmain(){
float bandgapvalue,VDD,VAIN,ADCvalue;
//fn8051ADCBypass();
fn8051ADCRead_bandgap();
ADCCON0 = 0x08;
ADCCON1 = 0x01;
clr_ADCF;
set_ADCS;
while(ADCF == 0){};
bandgapvalue = (ADCRH<<4) + ADCRL;
VDD = (0xFFF/bandgapvalue)*vrfGlb8051ADCBandgap_Voltage;
Disable_ADC;
ADCCON0 = 0x04;
ADCCON1 = 0x01;
//ADCCON2 = 0x00;
//AINDIDS = 0xEF;
clr_ADCF;
set_ADCS;
while(ADCF == 0){};
ADCvalue = (ADCRH<<4) + ADCRL;
VAIN = (float)ADCvalue/0x1000;
vrfGlb8051ADCVadcP05 = (float)(VAIN*VDD);
Disable_ADC;
}
void fn8051APROMWriteADC(){
float Q;
unsigned char nguyen,tphan1,tphan2;
Q = vrfGlb8051ADCVadcP05;
nguyen = (unsigned char)(Q/1000);
tphan1 = (unsigned char)((Q - nguyen*1000)/100);
tphan2 = (unsigned char)((Q - (nguyen*1000+tphan1*100))/10);
fn8051APROMwrite(nguyen,0x04);
fn8051APROMwrite(tphan1,0x05);
fn8051APROMwrite(tphan2,0x06);
}
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