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@ -36,19 +36,30 @@
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#include "TestApp.h"
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/* Scheduler Task List */
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TASK_LIST
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{
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{ .Task = TestApp_CheckJoystick, .TaskStatus = TASK_RUN },
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{ .Task = TestApp_CheckButton , .TaskStatus = TASK_RUN },
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{ .Task = TestApp_CheckTemp , .TaskStatus = TASK_RUN },
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{ .Task = USB_USBTask , .TaskStatus = TASK_RUN },
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};
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/** Main program entry point. This routine configures the hardware required by the application, then
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* starts the scheduler to run the application tasks.
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*/
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int main(void)
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{
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SetupHardware();
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puts_P(PSTR(ESC_RESET ESC_BG_WHITE ESC_INVERSE_ON ESC_ERASE_DISPLAY
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"LUFA Demo running.\r\n" ESC_INVERSE_OFF));
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for (;;)
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{
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CheckJoystick();
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CheckButton();
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CheckTemperature();
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/* Clear output-compare flag (logic 1 clears the flag) */
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TIFR0 |= (1 << OCF0A);
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USB_USBTask();
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}
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}
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void SetupHardware(void)
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{
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/* Disable watchdog if enabled by bootloader/fuses */
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MCUSR &= ~(1 << WDRF);
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@ -65,41 +76,20 @@ int main(void)
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LEDs_Init();
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Buttons_Init();
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/* Millisecond timer initialization, with output compare interrupt enabled */
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/* Millisecond timer initialization */
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OCR0A = 0x7D;
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TCCR0A = (1 << WGM01);
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TCCR0B = ((1 << CS01) | (1 << CS00));
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TIMSK0 = (1 << OCIE0A);
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/* Turn on interrupts */
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sei();
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/* Start-up message via USART */
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puts_P(PSTR(ESC_RESET ESC_BG_WHITE ESC_INVERSE_ON ESC_ERASE_DISPLAY
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"LUFA Demo running.\r\n" ESC_INVERSE_OFF));
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/* Scheduling - routine never returns, so put this last in the main function */
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Scheduler_Start();
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}
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/** ISR for the timer 0 compare vector. This ISR fires once each millisecond, and increments the
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* scheduler tick counter.
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*/
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ISR(TIMER0_COMPA_vect, ISR_BLOCK)
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{
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/* Scheduler test - increment scheduler tick counter once each millisecond */
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Scheduler_TickCounter++;
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}
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/** Task responsible for checking the joystick position, and displaying the joystick position onto the
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* board LEDs.
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*/
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TASK(TestApp_CheckJoystick)
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void CheckJoystick(void)
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{
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uint8_t JoyStatus_LCL = Joystick_GetStatus();
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uint8_t LEDMask = 0;
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uint8_t LEDMask = LEDS_NO_LEDS;
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/* Test of the Joystick - change a mask in response to joystick */
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if (JoyStatus_LCL & JOY_UP)
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LEDMask |= LEDS_LED1;
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@ -115,78 +105,61 @@ TASK(TestApp_CheckJoystick)
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if (JoyStatus_LCL & JOY_PRESS)
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LEDMask = LEDS_ALL_LEDS;
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/* Test of LEDs - light up in response to joystick */
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LEDs_SetAllLEDs(LEDMask);
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}
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/** Task responsible for checking the current temperature via the temperature sensor mounted on the
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* board, and displaying it through the serial USART.
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*/
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TASK(TestApp_CheckTemp)
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void CheckTemperature(void)
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{
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static SchedulerDelayCounter_t DelayCounter = 10000; // Force immediate run on start-up
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static uint16_t MSElapsed = 0;
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if (TIFR0 & (1 << OCF0A))
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MSElapsed++;
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/* Task runs every 10000 ticks, 10 seconds for this demo */
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if (Scheduler_HasDelayElapsed(10000, &DelayCounter))
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if (MSElapsed == 1000)
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{
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printf_P(PSTR("Current temperature: %d Degrees Celcius\r\n\r\n"),
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(int8_t)Temperature_GetTemperature());
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/* Reset the delay counter, ready to count another 10000 tick interval */
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Scheduler_ResetDelay(&DelayCounter);
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MSElapsed = 0;
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}
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}
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/** Task responsible for checking the board's first button' position, and start-stopping other tasks and the USB
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* interface in response to user joystick movements.
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*/
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TASK(TestApp_CheckButton)
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void CheckButton(void)
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{
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static SchedulerDelayCounter_t DelayCounter = 0;
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static bool IsPressed;
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static bool BlockingJoystickTask;
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static uint16_t DebounceMSElapsed = 0;
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static bool IsPressed;
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/* Check if board button pressed (start USB) */
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if (TIFR0 & (1 << OCF0A))
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DebounceMSElapsed++;
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if (Buttons_GetStatus() & BUTTONS_BUTTON1)
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{
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/* Debounce - check 100 ticks later to see if button is still being pressed */
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if ((IsPressed == false) && (Scheduler_HasDelayElapsed(100, &DelayCounter)))
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if (!(IsPressed) && (DebounceMSElapsed == 100))
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{
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/* Set flag, indicating that current pressed state has been handled */
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IsPressed = true;
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/* First start of the USB interface permanently blocks the joystick task */
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if (BlockingJoystickTask == false)
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{
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Scheduler_SetTaskMode(TestApp_CheckJoystick, TASK_STOP);
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BlockingJoystickTask = true;
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}
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/* Toggle USB interface */
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if (USB_IsInitialized == true)
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{
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USB_ShutDown();
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LEDs_SetAllLEDs(LEDS_LED1);
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puts_P(PSTR(ESC_BG_WHITE "USB Power Off.\r\n"));
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Scheduler_SetTaskMode(TestApp_CheckTemp, TASK_RUN);
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}
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else
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{
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Scheduler_SetTaskMode(TestApp_CheckTemp, TASK_STOP);
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LEDs_SetAllLEDs(LEDS_LED2 | LEDS_LED3);
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puts_P(PSTR(ESC_BG_YELLOW "USB Power On.\r\n"));
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puts_P(PSTR(ESC_BG_YELLOW "USB Power On.\r\n"));
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USB_Init(USB_MODE_UID, USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL);
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}
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}
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}
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else
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{
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/* Board button not pressed - reset debounce interval counter and press handled flag */
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Scheduler_ResetDelay(&DelayCounter);
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DebounceMSElapsed = 0;
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IsPressed = false;
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}
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}
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Dean Camera
15 years ago