int main()
{
// Process Ctrl+C to terminate the application
signal(SIGINT, close);
if (-1 == wiringPiSetup())
{
printf("setup wiringPi failed!\n");
return 1;
}
// Enable PWM and set max value
enablePWM(pinCtrl, 5);
// Infinite loop
for(;;)
{
// Increase brightness from 20% to 100%
for (int fadeIn=1; fadeIn<6;fadeIn++)
{
printf("Brightness: %d%\n", fadeIn*20);
softPwmWrite(pinCtrl, fadeIn);
delay(3000);
}
// Decrease brightness from 80% to 40%
for (int fadeOut=4; fadeOut>1; fadeOut--)
{
printf("Brightness: %d%\n", fadeOut*20);
softPwmWrite(pinCtrl, fadeOut);
delay(3000);
}
}
return 0;
}
void SPIPWMworker(void)
{
unsigned char token, instruction, fInst=0,fb=0,bf=0;
initSPI();
SSP2BUF = 0xFD;
enablePWM();
while (1)
{
while(PORTCbits.RC0 ==0)//CS LOW
{
if(SSP2STATbits.BF) // we received something :)
{
bf=1;
if(fb==0)
{
token = SSP2BUF;
instruction = token & SPIEEMASK;
}
fb=1;
switch (instruction)
{
case 0:
if(fInst)
{
if(fInst==1)setPeriod(SSP2BUF);
fInst++;
}
else
{
fInst=1;
}
SSP2BUF = PWMperiod;
break;
case 1:
if(fInst)
{
if(fInst==1)setDuty(SSP2BUF);
fInst++;
}
else
{
fInst=1;
}
SSP2BUF = PWMduty;
break;
}
}
}
if(bf) //CS HIGH
{
fb=0;
bf=0;
fInst = 0;
}
}
}
int main(void)
{
int fileHandleGPIO_LED;
int fileHandleGPIO_PROXY;
int i=0;
puts("Starting proximity reader on Galileo board.");
fileHandleGPIO_PROXY = openGPIO(GP_PROXY, GPIO_DIRECTION_IN);
if(ERROR == fileHandleGPIO_PROXY)
{
puts("Unable to open toggle Proximity port #8");
return(-1);
}
fileHandleGPIO_LED = openGPIO(GP_LED, GPIO_DIRECTION_OUT);
if(ERROR == fileHandleGPIO_LED)
{
puts("Unable to open toggle LED port #13");
return(-1);
}
//Switch off the LED before starting.
writeGPIO(fileHandleGPIO_LED, 0);
//set PWM parameters
openPWM(GP_PWM);
setPWMPeriod(1000000,GP_PWM);
enablePWM(1,GP_PWM);
setPWMDutyCycle(0,GP_PWM);
//Start an infinite loop to keep polling for proximity info
int proxyValue = 0;
while(1==1)
{
proxyValue = readGPIO(fileHandleGPIO_PROXY,GP_PROXY);
if(proxyValue == 1)
{
if(duty_cycle == 500000)
{
duty_cycle = 200000;
writeGPIO(fileHandleGPIO_LED, 0);
}
else
{
duty_cycle = 500000;
writeGPIO(fileHandleGPIO_LED, 1);
}
setPWMDutyCycle(duty_cycle,GP_PWM);
}
else
{
duty_cycle = 50000;
setPWMDutyCycle(0,GP_PWM);
writeGPIO(fileHandleGPIO_LED, 0);
}
usleep(1000*400);
}
closeGPIO(GP_LED, fileHandleGPIO_LED);
closeGPIO(GP_PROXY, fileHandleGPIO_PROXY);
closePWM(GP_PWM);
puts("Finished BURGLER ALARM on Galileo board.");
return 0;
}
void UARTworker(void)
{
unsigned char c,mode=0,addr=0,instruction=0,EEaddrF=0,EEaddr=0,adcc=0,helpC;
initUART();
//write start message (menu)
UARTwriteString(msgMenu[0]);
UARTwrite('\n');
while(1)
{
if(RCIF)
{
RCIF=0;
LED2ON;
if(!(RCSTA&0b00000110))
{ rhead++;
rhead&=RINGBUFFMASK;
ringbuff[rhead]=RCREG;
}
LED2OFF;
c=UARTread();
UARTwrite(c);
//c=UARTcharFromString(c);
switch (mode)
{
case 0:
mode=c-48;
UARTwriteString(msgMenu[c-48]);
if(mode==2)enablePWM();
else if(mode==3)enableDAC();
break;
case 1://ADC
switch(c)
{
case 'r'://single read
UARTwriteString("\n\nADC value: ");
helpC=getADC(adcc);
UARTwriteDecimal(helpC);
UARTwriteString(msgMenu[1]);
break;
case '1'://chanell one
UARTwriteString("\n\nchannel 1 selected");
adcc=0;
UARTwriteString(msgMenu[1]);
break;
case '2'://chanel two
UARTwriteString("\n\nchannel 2 selected");
adcc=1;
UARTwriteString(msgMenu[1]);
break;
case '3'://chanell three
UARTwriteString("\n\nchannel 3 selected");
adcc=2;
UARTwriteString(msgMenu[1]);
break;
case 't'://temp
UARTwriteString("\n\nTemp sensor selected");
adcc=3;
UARTwriteString(msgMenu[1]);
break;
case 'm'://back to start
mode = 0;
UARTwriteString(msgMenu[0]);
break;
default:
break;
}
break;
case 2://PWM
if(instruction)
{
switch(instruction)
{
case 'p':
//pwm period = c;
setPeriod(UARTcharFromString(c));
UARTwriteString(msgMenu[2]);
break;
case 'd':
setDuty(UARTcharFromString(c));
UARTwriteString(msgMenu[2]);
//pwm period =c;
break;
case 'm':
mode =0;
//pwm off
UARTwriteString(msgMenu[0]);
break;
default:
break;
}
instruction = 0;
}
else
{
instruction = c; //loads the instruction
if(instruction == 'p')
{
UARTwriteString("\n\nEnter the PWM Period: ");
}
else if(instruction == 'd')
{
UARTwriteString("\n\nEnter the PWM Duty Cycle: ");
}
else if(instruction == 'm') //if it's m goes back to the start menu...
{
mode =0;
instruction =0;
disablePWM();
UARTwriteString(msgMenu[0]);
}
}
break;
case 3://DAC
if(instruction)
{
switch(instruction)
{
case 'v': //enter woltage
setDAC(UARTcharFromString(c));
UARTwriteString(msgMenu[3]);
break;
case 'm':
mode = 0;
UARTwriteString(msgMenu[0]);
break;
default:
break;
}
instruction =0;
}
else
{
instruction = c; //loads the instruction
if(instruction == 'v')
{
UARTwriteString(msgDACsetV);
}
else if(instruction == 'm') //if it's m goes back to the start menu...
{
mode =0;
instruction =0;
disableDAC();
UARTwriteString(msgMenu[0]);
}
}
break;
case 4://MEM
if(instruction) //if instruction has been sent previusly
{
if(EEaddrF) //instruction was sent previusly, check if address was sent
{ //address was sent
if(instruction == 'w') //if instruction was W-writes recived character to EEProm[ADDR]
{
EEPROMwrite(EEaddr,UARTcharFromString(c));
UARTwriteString(msgMenu[4]);
//write c to eeprom
}
else if (instruction == 'r') //if instruction was R-reads EEprom[addr] from eeprom
{
UARTwriteDecimal(EEPROMread(EEaddr));
UARTwriteString(msgMenu[4]);
}
else if (instruction == 'm') //if instruction was m --returns to start menu...
{
mode = 0;
UARTwriteString(msgMenu[0]);
}
EEaddrF=0; //clears the addressing flag
instruction =0; //clears the istruction flag
}
else
{
EEaddrF=1; //sets the address flage
EEaddr=UARTcharFromString(c);
if(instruction=='w')UARTwriteString(msgEEw);
else if(instruction == 'r')UARTwriteString("\n\nHit any key to read from EEPROM.\n\n");
}
}
else
{
instruction = c; //loads the instruction
if((instruction == 'w')||(instruction == 'r'))
{
UARTwriteString(msgEEaddr);
}
else if(instruction == 'm') //if it's m goes back to the start menu...
{
mode =0;
instruction =0;
UARTwriteString(msgMenu[0]);
}
}
break;
default:
mode=0;
UARTwriteString(msgMenu[0]);
break;
}
}
}
}