void main()
{
auto char s[40];
auto char display[80];
auto int key, reading, channel;
brdInit();
//Display user instructions and channel headings
DispStr(8, 1, " <<< Digital inputs: >>>");
DispStr(8, 2, "IN0\tIN1\tIN2\tIN3\tIN4\tIN5\tIN6\tIN7");
DispStr(8, 3, "---\t---\t---\t---\t---\t---\t---\t---");
DispStr(8, 6, "IN8\tIN9\tIN10");
DispStr(8, 7, "---\t---\t----");
DispStr(8, 12, "Connect the Demo Bd. switches to the inputs that you what to toggle.");
DispStr(8, 13, "(See instructions in sample program for complete details)");
DispStr(8, 15, "<-PRESS 'Q' TO QUIT->");
//loop until user presses the "Q" key
for(;;)
{
// display the input status for all channels
display[0] = '\0'; //initialize for strcat function
for(channel = 0; channel < 8; channel++) //read channels 0 - 7
{
reading = digIn(channel); //read channel
sprintf(s, "%d\t", reading); //format reading in memory
strcat(display,s); //append reading to display string
}
DispStr(8, 4, display); //update input status
display[0] = '\0';
for(channel = 8; channel < 11; channel++) //read channels 8 - 10
{
reading = digIn(channel);
sprintf(s, "%d\t", reading);
strcat(display,s);
}
DispStr(8, 8, display);
if(kbhit())
{
key = getchar();
if (key == 'Q' || key == 'q') // check if it's the q or Q key
{
while(kbhit()) getchar();
exit(0);
}
}
}
}
/*
* Check the status of switch 3
*/
cofunc void CheckSwitch3()
{
if (digIn(3)) abort; // if button not down skip out
waitfor(DelayMs(50)); // wait 50 ms
if (digIn(3)) abort; // if button not still down exit
SendMail(3); // send email since button was down 50 ms
while (1) {
waitfor(digIn(3)); // wait for button to go up
waitfor(DelayMs(200)); // wait additional 200 ms
if (digIn(3))
break; // if button still up break out of while loop
}
}
/*********************************************************************************
This function reads/writes the IO and fills the information in the my_inouts
array, for example:
- Analog Inputs
read the channel then fill the my_inouts->ain array with the new data
- Digital Inputs:
read the channel then fill the my_inouts->din array with the new data
- Digital Outputs:
read the my_inouts->dout array then set the correct digital channel LOW or
HIGH depending what is in the array.
********************************************************************************/
void My_IO_Ctrl(My_InOuts_Type *my_inouts)
{
static int channel;
// ANALOG INPUTS: this is where we read the analog inputs............
for(channel=0;channel<ANALOG_INPUTS;channel++)
{
my_inouts->ain[channel] = anaInVolts(channel,GAIN_X2);
if (my_inouts->ain[channel] > 10 ) my_inouts->ain[channel] = 10.000;
if (my_inouts->ain[channel] < 0 ) my_inouts->ain[channel] = 0.000;
// if(my_inouts->ain[channel] < 10) // DEBUGGING
// my_inouts->ain[channel]++; // DEBUGGING
// else // DEBUGGING
// my_inouts->ain[channel] = 0; // DEBUGGING
}
// DIGITAL INPUTS: this is where we read the digital inputs..........
for(channel=0;channel<DIGITAL_INPUTS;channel++)
{
my_inouts->din[channel] = LOW_HIGH[digIn(channel)];
//if(!strcmp(my_inouts->din[channel],LOW_HIGH[1]))// DEBUGGING
// my_inouts->din[channel] = LOW_HIGH[0]; // DEBUGGING
//else // DEBUGGING
// my_inouts->din[channel] = LOW_HIGH[1]; // DEBUGGING
}
// DIGITAL OUTPUTS: this is where we set the digital outputs.........
for(channel=0;channel<DIGITAL_OUTPUTS;channel++)
{
if(!strcmp(my_inouts->dout[channel],LOW_HIGH[0]))
{
//my_inouts->dout[channel] = LOW_HIGH[0]; // DEBUGGING
digOut(channel,0);
// at this point the data in the my_inouts->dout array is high so we
// need to set the digital output to high, for example:
// see_digital_output(channel,1);
}
else
{
//my_inouts->dout[channel] = LOW_HIGH[1]; // DEBUGGING
digOut(channel,1);
// at this point the data in the my_inouts->dout array is low so we
// need to set the digital output to low, for example:
// see_digital_output(channel,0);
}
}
}
/**
* This task polls the switches and then
* posts a message to the message queue
* if an alarm needs to be activated
*/
void switchTask(void *data) {
// Error Referene
INT8U err;
// Local zone status
auto int localZone0;
auto int localZone1;
auto int localZone2;
auto int localZone3;
// Local switch state
auto int sw0State;
auto int sw1State;
auto int sw2State;
auto int sw3State;
// Result for message queue
static char result;
// Initialize zones
localZone0 = ON;
localZone1 = ON;
localZone2 = ON;
localZone3 = ON;
// Initialize switch state
sw0State = OFF;
sw1State = OFF;
sw2State = OFF;
sw3State = OFF;
// Loop forever
while(1) {
// Check switches
sw0State = digIn(ID_SWITCH_1);
sw1State = digIn(ID_SWITCH_2);
sw2State = digIn(ID_SWITCH_3);
sw3State = digIn(ID_SWITCH_4);
// Check to see if we have any switches
if(!sw0State || !sw1State || !sw2State || !sw3State ) {
// Take a semaphore and get the current zone states
OSSemPend(zoneSem, 0, &err);
localZone0 = zone0State;
localZone1 = zone1State;
localZone2 = zone2State;
localZone3 = zone3State;
OSSemPost(zoneSem);
// Check to see which zones (if any) have been triggered
if(!sw0State && localZone0 == ON) {
// Msg Queue Zone 0
result = '0';
}
else if(!sw1State && localZone1 == ON) {
// Msg Queue Zone 1
result = '1';
}
else if(!sw2State && localZone2 == ON) {
// Msg Queue Zone 2
result = '2';
}
else if(!sw3State && localZone3 == ON) {
// Msg Queue Zone 3
result = '3';
}
else {
//Nope
result = 'A';
}
// Post the message
printf("Posting alarm message \n");
OSQPost(msgQueuePtr, (void *)&result);
}
// Update Alarm State (in case web bypassed/disarmed)
OSSemPend(alarmSem, 0, &err);
if(alarming == OFF) {
digOut(ID_BUZZER, OFF);
digOut(LED_0_ID, OFF);
digOut(LED_1_ID, OFF);
digOut(LED_2_ID, OFF);
digOut(LED_3_ID, OFF);
}
OSSemPost(alarmSem);
//Done
OSSemPost(switchToHTTP);
// Try to take a semaphore, this will block us
OSSemPend(httpToSwitch, 0, &err);
}
}
void main()
{
char s[40];
int encoder_state;
word count;
// Initialize the controller
brdInit();
// Configure digital outputs to simulate quadrature encoder output
setDigOut(LED1, 1);
setDigOut(LED2, 1);
// Configure quadrature encoder input
setDecoder(QUAD_I, QUAD_Q, -1, 0);
// Configure digital inputs for switches
setDigIn(SW1);
setDigIn(SW2);
setDigIn(SW3);
// initialize outputs to low
encoder_state = 0;
simulate_encoder(encoder_state);
// reset quadrature decoder counter
resetCounter(QUAD_I);
DispStr(2, 1, "<<< Simulating a Quadrature Encoder with button presses >>>");
DispStr(1, 3, "Press Button SW1 to decrement counter");
DispStr(1, 4, "Press Button SW2 to increment counter");
DispStr(1, 5, "Press Button SW3 to reset counter");
while (1)
{
costate
{
// Display the counter value
getCounter(QUAD_I, &count);
sprintf(s, "Quadrature Decoder Count = %6u", count);
DispStr(1, 7, s);
}
costate
{
// decrement counter
waitfor(!digIn(SW1)); // wait for switch 1 to be pressed
waitfor(DelayMs(50)); // debounce
if (!digIn(SW1)) {
--encoder_state;
if (encoder_state < 0)
{
encoder_state = 3;
}
simulate_encoder(encoder_state);
waitfor(DelayMs(150)); // repeat when switch held down
}
}
costate
{
// increment counter
waitfor(!digIn(SW2)); // wait for switch 2 to be pressed
waitfor(DelayMs(50)); // debounce
if (!digIn(SW2)) {
++encoder_state;
if (encoder_state > 3)
{
encoder_state = 0;
}
simulate_encoder(encoder_state);
waitfor(DelayMs(150)); // repeat when switch held down
}
}
costate
{
// reset counter
waitfor(!digIn(SW3)); // wait for switch 3 to be pressed
waitfor(DelayMs(50)); // debounce
if (!digIn(SW3)) {
resetCounter(QUAD_I); // reset quadrature decoder counter
waitfor(digIn(SW3)); // wait for switch 3 to be released
}
}
}
}
int debounce_key(void)
{
auto int status;
static int state;
static unsigned long debounce_period;
// initialize state machine during system initialization
#GLOBAL_INIT {state=0;}
status = !KEY_PRESSED;
switch(state)
{
case 0:
// wait for the switch to be pressed
if(!digIn(0))
{ //set debounce period
state++;
debounce_period = MS_TIMER + 50; // debounce period = 50ms
}
break;
case 1:
// check if switch is still being pressed, if not reset state machine
if((long) (MS_TIMER-debounce_period) >= 0 )
{
if(!digIn(0))
{
state++;
status = KEY_PRESSED;
}
else
{
state = 0;
}
}
break;
case 2:
// wait for the switch to be released
if(digIn(0))
{
state++;
debounce_period = MS_TIMER + 100; // debounce period = 100ms
}
break;
case 3:
// verify that the switch is still released after debounce period
if((long)(MS_TIMER-debounce_period) >= 0 )
{
if(digIn(0))
{
state = 0;
}
else
{
debounce_period = MS_TIMER + 20; // debounce period = 20ms
}
}
break;
default: // should never get here!
state = 0;
break;
}
return(status);
}
