int main(void)
{
while(1)
{
previousSpriteState = spriteState;
pollKeys();
enableSounds();
setupInterrupts();
switch(state)
{
case SPLASH:
{
REG_DISPCNTL = BG2_ENABLE | MODE3;
fillPicture((u16 *)splashBitmap);
if (BUTTON_PRESSED(START_BUTTON))
{
state = GAME;
}
if (BUTTON_PRESSED(SELECT_BUTTON))
{
state = INSTRUCTIONS;
}
break;
}
case INSTRUCTIONS:
{
fillPicture((u16 *)instructionsBitmap);
if (BUTTON_PRESSED(SELECT_BUTTON))
{
state = SPLASH;
}
break;
}
case GAME:
{
//load tiles
DMA_MEMORY[3].source = backgroundTiles;
DMA_MEMORY[3].destination = &CHARBLOCK[0];
DMA_MEMORY[3].control = 12000 | DMA_ON;
//load map
DMA_MEMORY[3].source = backgroundMap;
DMA_MEMORY[3].destination = &SCREENBLOCK[27];
DMA_MEMORY[3].control = 4096 | DMA_ON;
//load pallette
DMA_MEMORY[3].source = backgroundPal;
DMA_MEMORY[3].destination = PAL_MEM;
DMA_MEMORY[3].control = 256 | DMA_ON;
//load the sprites into memory
DMA_MEMORY[3].source = playerTiles;
DMA_MEMORY[3].destination = &CHARBLOCK[4];
DMA_MEMORY[3].control = 16384 | DMA_ON;
DMA_MEMORY[3].source = playerPal;
DMA_MEMORY[3].destination = SPRITE_PALETTE;
DMA_MEMORY[3].control = 256 | DMA_ON;
//Hide all sprites
int i;
for(i=0; i<128; i++)
{
OAM[i].attr0 |= ATTR0_HIDE;
}
//Set Mode 0 BG 0 and Enable sprites. then set up the sprites
REG_DISPCNTL = MODE0 | BG0_ENABLE | SPRITE_ENABLE;
REG_BG0CNT = BG_8BPP | BG_REG_64x64 | CBB(0) | SBB(27);
REG_TM0CNT = 0;
DMA[1].cnt = 0;
REG_TM0D = timerintervalA;
REG_TM0CNT = TIMER_ON;
DMA[1].src = bgsound;
DMA[1].dst = REG_FIFO_A;
DMA[1].cnt = DMA_ON | START_ON_FIFO_EMPTY |
DMA_32 | DMA_REPEAT |
DMA_DESTINATION_FIXED;
startA = vblankcountA;
while(1){
shadowOAM[0].attr0 = (playerRow & MASKROW) | ATTR0_TALL | ATTR0_REGULAR | ATTR0_8BPP;
shadowOAM[0].attr1 = (playerCol & MASKCOL)| ATTR1_SIZE32;
shadowOAM[0].attr2 = (SPRITEOFFSET16(0,0));
shadowOAM[1].attr0 = badguyRow | ATTR0_TALL | ATTR0_REGULAR | ATTR0_8BPP;
shadowOAM[1].attr1 = badguyCol | ATTR1_SIZE32;
shadowOAM[1].attr2 = (SPRITEOFFSET16(0,8));
pollKeys();
bigRow = playerRow + vOff;
bigCol = playerCol + hOff;
switch(spriteState)
{
case STILL:
{
shadowOAM[0].attr2 = (SPRITEOFFSET16(0,0));
break;
}
case MOVING:
{
if((walkCounter%2)==1)
shadowOAM[0].attr2 = (SPRITEOFFSET16(0,4));
else if((walkCounter%2==0))
{
shadowOAM[0].attr2 = (SPRITEOFFSET16(0,0));
}
break;
}
}
if(BUTTON_HELD(A_BUTTON) && BUTTON_HELD(B_BUTTON))
{
//load tiles
DMA_MEMORY[3].source = cheatbackgroundTiles;
DMA_MEMORY[3].destination = &CHARBLOCK[0];
DMA_MEMORY[3].control = 11456 | DMA_ON;
//load map
DMA_MEMORY[3].source = cheatbackgroundMap;
DMA_MEMORY[3].destination = &SCREENBLOCK[27];
DMA_MEMORY[3].control = 4096 | DMA_ON;
//load pallette
DMA_MEMORY[3].source = cheatbackgroundPal;
DMA_MEMORY[3].destination = PAL_MEM;
DMA_MEMORY[3].control = 256 | DMA_ON;
}
if (BUTTON_HELD(RIGHT_BUTTON))
{
spriteState=MOVING;
walkCounter++;
if(collisionmapBitmap[((bigRow+playerHeight)*collMapSize)+(bigCol+playerCVel+playerWidth)]==WHITE)
{
if(playerCol<(SCREEN_WIDTH-(playerWidth+5))){
playerCol+=playerCVel;
}
else if(hOff<(collMapSize-SCREEN_WIDTH))
{
hOff+=playerCVel;
}
}
}
if (BUTTON_HELD(LEFT_BUTTON))
{
spriteState=MOVING;
walkCounter++;
if(collisionmapBitmap[((bigRow+playerHeight)*collMapSize)+(bigCol+playerCVel)]==WHITE)
{
if(playerCol>(0))
{
playerCol-=playerCVel;
}
else if(hOff>(SCREEN_WIDTH-collMapSize))
{
hOff-=playerCVel;
}
}
}
if (BUTTON_HELD(UP_BUTTON))
{
spriteState=MOVING;
walkCounter++;
//Check collision and move
if((collisionmapBitmap[(((bigRow-playerRVel)*collMapSize)+(bigCol+playerWidth))]==WHITE)&&
(collisionmapBitmap[(((bigRow-playerRVel)*collMapSize)+(bigCol))]==WHITE))
{
if(playerRow>30)
{
playerRow-=playerRVel;
}
else if(vOff>0)
{
vOff-=playerRVel;
}
}
}
if (BUTTON_HELD(DOWN_BUTTON))
{
spriteState=MOVING;
walkCounter++;
//Check collision and move
if((collisionmapBitmap[(((bigRow+playerHeight+playerRVel)*collMapSize)+(bigCol+playerWidth))]==WHITE)&&
(collisionmapBitmap[(((bigRow+playerHeight+playerRVel)*collMapSize)+(bigCol))]==WHITE))
{
if(playerRow<(SCREEN_HEIGHT-(playerHeight)))
{
playerRow+=playerRVel;
}
else if(vOff<(collMapSize-SCREEN_HEIGHT))
{
vOff+=playerRVel;
}
if((playerRow > 440) && (playerCol > 464))
{
state = WIN;
}
}
}
if (BUTTON_PRESSED(START_BUTTON))
{
REG_TM1CNT = 0;
DMA[2].cnt = 0;
REG_TM1D = timerintervalB;
REG_TM1CNT = TIMER_ON;
DMA[2].src = bark;
DMA[2].dst = REG_FIFO_B;
DMA[2].cnt = DMA_ON | START_ON_FIFO_EMPTY |
DMA_32 | DMA_REPEAT |
DMA_DESTINATION_FIXED;
startB = vblankcountB;
}
if (BUTTON_PRESSED(SELECT_BUTTON))
{
//waitForNoKey();
state = PAUSE;
}
waitForVBlank();
OAM[0] = shadowOAM[0];
OAM[1] = shadowOAM[1];
REG_BG0HOFS = hOff;
REG_BG0VOFS = vOff;
}
}
case WIN:
{
while(1);
}
case PAUSE:
{
if(BUTTON_PRESSED(SELECT_BUTTON))
{
state=GAME;
}
}
}
}
return 0;
}
//*****************************************************************************
//
// The interrupt handler for the PB4 pin interrupt. When triggered, this will
// toggle the JTAG pins between JTAG and GPIO mode.
//
//*****************************************************************************
void
SysTickIntHandler(void)
{
uint8_t ui8Buttons;
uint8_t ui8ButtonsChanged;
//
// Grab the current, debounced state of the buttons.
//
ui8Buttons = ButtonsPoll(&ui8ButtonsChanged, 0);
//
// If the left button has been pressed, and was previously not pressed,
// start the process of changing the behavior of the JTAG pins.
//
if(BUTTON_PRESSED(LEFT_BUTTON, ui8Buttons, ui8ButtonsChanged))
{
//
// Toggle the pin mode.
//
g_ui32Mode ^= 1;
//
// See if the pins should be in JTAG or GPIO mode.
//
if(g_ui32Mode == 0)
{
//
// Change PC0-3 into hardware (i.e. JTAG) pins.
//
HWREG(GPIO_PORTC_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY;
HWREG(GPIO_PORTC_BASE + GPIO_O_CR) = 0x01;
HWREG(GPIO_PORTC_BASE + GPIO_O_AFSEL) |= 0x01;
HWREG(GPIO_PORTC_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY;
HWREG(GPIO_PORTC_BASE + GPIO_O_CR) = 0x02;
HWREG(GPIO_PORTC_BASE + GPIO_O_AFSEL) |= 0x02;
HWREG(GPIO_PORTC_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY;
HWREG(GPIO_PORTC_BASE + GPIO_O_CR) = 0x04;
HWREG(GPIO_PORTC_BASE + GPIO_O_AFSEL) |= 0x04;
HWREG(GPIO_PORTC_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY;
HWREG(GPIO_PORTC_BASE + GPIO_O_CR) = 0x08;
HWREG(GPIO_PORTC_BASE + GPIO_O_AFSEL) |= 0x08;
HWREG(GPIO_PORTC_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY;
HWREG(GPIO_PORTC_BASE + GPIO_O_CR) = 0x00;
HWREG(GPIO_PORTC_BASE + GPIO_O_LOCK) = 0;
//
// Turn on the LED to indicate that the pins are in JTAG mode.
//
ROM_GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_3 | GPIO_PIN_1,
GPIO_PIN_3);
}
else
{
//
// Change PC0-3 into GPIO inputs.
//
HWREG(GPIO_PORTC_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY;
HWREG(GPIO_PORTC_BASE + GPIO_O_CR) = 0x01;
HWREG(GPIO_PORTC_BASE + GPIO_O_AFSEL) &= 0xfe;
HWREG(GPIO_PORTC_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY;
HWREG(GPIO_PORTC_BASE + GPIO_O_CR) = 0x02;
HWREG(GPIO_PORTC_BASE + GPIO_O_AFSEL) &= 0xfd;
HWREG(GPIO_PORTC_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY;
HWREG(GPIO_PORTC_BASE + GPIO_O_CR) = 0x04;
HWREG(GPIO_PORTC_BASE + GPIO_O_AFSEL) &= 0xfb;
HWREG(GPIO_PORTC_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY;
HWREG(GPIO_PORTC_BASE + GPIO_O_CR) = 0x08;
HWREG(GPIO_PORTC_BASE + GPIO_O_AFSEL) &= 0xf7;
HWREG(GPIO_PORTC_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY;
HWREG(GPIO_PORTC_BASE + GPIO_O_CR) = 0x00;
HWREG(GPIO_PORTC_BASE + GPIO_O_LOCK) = 0;
ROM_GPIOPinTypeGPIOInput(GPIO_PORTC_BASE, (GPIO_PIN_0 | GPIO_PIN_1 |
GPIO_PIN_2 | GPIO_PIN_3));
//
// Turn off the LED to indicate that the pins are in GPIO mode.
//
ROM_GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_3 | GPIO_PIN_1,
GPIO_PIN_1);
}
}
}
//*****************************************************************************
//
// Initialize and operate the data logger.
//
//*****************************************************************************
int
main(void)
{
tContext sDisplayContext, sBufferContext;
uint32_t ui32HibIntStatus, ui32SysClock, ui32LastTickCount;
bool bSkipSplash;
uint8_t ui8ButtonState, ui8ButtonChanged;
uint_fast8_t ui8X, ui8Y;
//
// Enable lazy stacking for interrupt handlers. This allows floating-point
// instructions to be used within interrupt handlers, but at the expense of
// extra stack usage.
//
MAP_FPULazyStackingEnable();
//
// Set the clocking to run at 50 MHz.
//
MAP_SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_XTAL_16MHZ |
SYSCTL_OSC_MAIN);
ui32SysClock = MAP_SysCtlClockGet();
//
// Initialize locals.
//
bSkipSplash = false;
ui32LastTickCount = 0;
//
// Check Board Revision, report if software / hardware are incompatible
//
CheckBoardRevision();
//
// Initialize the data acquisition module. This initializes the ADC
// hardware.
//
AcquireInit();
// Enable interrupts to the processor.
//
ROM_IntMasterEnable();
//
// Enable access to the hibernate peripheral. If the hibernate peripheral
// was already running then this will have no effect.
//
MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_HIBERNATE);
//
// Check to see if the hiberate module is already active and if so then
// read the saved configuration state. If both are okay, then proceed
// to check and see if we are logging data using sleep mode.
//
if(HibernateIsActive() && !GetSavedState(&g_sConfigState))
{
//
// Read the status of the hibernate module.
//
ui32HibIntStatus = HibernateIntStatus(1);
//
// If this is a pin wake, that means the user pressed the select
// button and we should terminate the sleep logging. In this case
// we will fall out of this conditional section, and go through the
// normal startup below, but skipping the splash screen so the user
// gets immediate response.
//
if(ui32HibIntStatus & HIBERNATE_INT_PIN_WAKE)
{
//
// Clear the interrupt flag so it is not seen again until another
// wake.
//
HibernateIntClear(HIBERNATE_INT_PIN_WAKE);
bSkipSplash = true;
}
//
// Otherwise if we are waking from hibernate and it was not a pin
// wake, then it must be from RTC match. Check to see if we are
// sleep logging and if so then go through an abbreviated startup
// in order to collect the data and go back to sleep.
//
else if(g_sConfigState.ui32SleepLogging &&
(ui32HibIntStatus & HIBERNATE_INT_RTC_MATCH_0))
{
//
// Start logger and pass the configuration. The logger should
// configure itself to take one sample.
//
AcquireStart(&g_sConfigState);
g_iLoggerState = eSTATE_LOGGING;
//
// Enter a forever loop to run the acquisition. This will run
// until a new sample has been taken and stored.
//
while(!AcquireRun())
{
}
//
// Getting here means that a data acquisition was performed and we
// can now go back to sleep. Save the configuration and then
// activate the hibernate.
//
SetSavedState(&g_sConfigState);
//
// Set wake condition on pin-wake or RTC match. Then put the
// processor in hibernation.
//
HibernateWakeSet(HIBERNATE_WAKE_PIN | HIBERNATE_WAKE_RTC);
HibernateRequest();
//
// Hibernating takes a finite amount of time to occur, so wait
// here forever until hibernate activates and the processor
// power is removed.
//
for(;;)
{
}
}
//
// Otherwise, this was not a pin wake, and we were not sleep logging,
// so just fall out of this conditional and go through the normal
// startup below.
//
}
else
{
//
// In this case, either the hibernate module was not already active, or
// the saved configuration was not valid. Initialize the configuration
// to the default state and then go through the normal startup below.
//
GetDefaultState(&g_sConfigState);
}
//
// Enable the Hibernate module to run.
//
HibernateEnableExpClk(SysCtlClockGet());
//
// The hibernate peripheral trim register must be set per silicon
// erratum 2.1
//
HibernateRTCTrimSet(0x7FFF);
//
// Start the RTC running. If it was already running then this will have
// no effect.
//
HibernateRTCEnable();
//
// In case we were sleep logging and are now finished (due to user
// pressing select button), then disable sleep logging so it doesnt
// try to start up again.
//
g_sConfigState.ui32SleepLogging = 0;
SetSavedState(&g_sConfigState);
//
// Initialize the display driver.
//
CFAL96x64x16Init();
//
// Initialize the buttons driver.
//
ButtonsInit();
//
// Pass the restored state to the menu system.
//
MenuSetState(&g_sConfigState);
//
// Enable the USB peripheral
//
MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_USB0);
//
// Configure the required pins for USB operation.
//
MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOG);
MAP_GPIOPinConfigure(GPIO_PG4_USB0EPEN);
MAP_GPIOPinTypeUSBDigital(GPIO_PORTG_BASE, GPIO_PIN_4);
MAP_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOL);
MAP_GPIOPinTypeUSBAnalog(GPIO_PORTL_BASE, GPIO_PIN_6 | GPIO_PIN_7);
MAP_GPIOPinTypeUSBAnalog(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1);
//
// Erratum workaround for silicon revision A1. VBUS must have pull-down.
//
if(CLASS_IS_BLIZZARD && REVISION_IS_A1)
{
HWREG(GPIO_PORTB_BASE + GPIO_O_PDR) |= GPIO_PIN_1;
}
//
// Initialize the USB stack mode and pass in a mode callback.
//
USBStackModeSet(0, eUSBModeOTG, ModeCallback);
//
// Initialize the stack to be used with USB stick.
//
USBStickInit();
//
// Initialize the stack to be used as a serial device.
//
USBSerialInit();
//
// Initialize the USB controller for dual mode operation with a 2ms polling
// rate.
//
USBOTGModeInit(0, 2000, g_pui8HCDPool, HCD_MEMORY_SIZE);
//
// Initialize the menus module. This module will control the user
// interface menuing system.
//
MenuInit(WidgetActivated);
//
// Configure SysTick to periodically interrupt.
//
g_ui32TickCount = 0;
MAP_SysTickPeriodSet(ui32SysClock / CLOCK_RATE);
MAP_SysTickIntEnable();
MAP_SysTickEnable();
//
// Initialize the display context and another context that is used
// as an offscreen drawing buffer for display animation effect
//
GrContextInit(&sDisplayContext, &g_sCFAL96x64x16);
GrContextInit(&sBufferContext, &g_sOffscreenDisplayA);
//
// Show the splash screen if we are not skipping it. The only reason to
// skip it is if the application was in sleep-logging mode and the user
// just waked it up with the select button.
//
if(!bSkipSplash)
{
const uint8_t *pui8SplashLogo = g_pui8Image_TI_Black;
//
// Draw the TI logo on the display. Use an animation effect where the
// logo will "slide" onto the screen. Allow select button to break
// out of animation.
//
for(ui8X = 0; ui8X < 96; ui8X++)
{
if(ButtonsPoll(0, 0) & SELECT_BUTTON)
{
break;
}
GrImageDraw(&sDisplayContext, pui8SplashLogo, 95 - ui8X, 0);
}
//
// Leave the logo on the screen for a long duration. Monitor the
// buttons so that if the user presses the select button, the logo
// display is terminated and the application starts immediately.
//
while(g_ui32TickCount < 400)
{
if(ButtonsPoll(0, 0) & SELECT_BUTTON)
{
break;
}
}
//
// Extended splash sequence
//
if(ButtonsPoll(0, 0) & UP_BUTTON)
{
for(ui8X = 0; ui8X < 96; ui8X += 4)
{
GrImageDraw(&sDisplayContext,
g_ppui8Image_Splash[(ui8X / 4) & 3],
(int32_t)ui8X - 96L, 0);
GrImageDraw(&sDisplayContext, pui8SplashLogo, ui8X, 0);
MAP_SysCtlDelay(ui32SysClock / 12);
}
MAP_SysCtlDelay(ui32SysClock / 3);
pui8SplashLogo = g_ppui8Image_Splash[4];
GrImageDraw(&sDisplayContext, pui8SplashLogo, 0, 0);
MAP_SysCtlDelay(ui32SysClock / 12);
}
//
// Draw the initial menu into the offscreen buffer.
//
SlideMenuDraw(&g_sMenuWidget, &sBufferContext, 0);
//
// Now, draw both the TI logo splash screen (from above) and the initial
// menu on the screen at the same time, moving the coordinates so that
// the logo "slides" off the display and the menu "slides" onto the
// display.
//
for(ui8Y = 0; ui8Y < 64; ui8Y++)
{
GrImageDraw(&sDisplayContext, pui8SplashLogo, 0, -ui8Y);
GrImageDraw(&sDisplayContext, g_pui8OffscreenBufA, 0, 63 - ui8Y);
}
}
//
// Add the menu widget to the widget tree and send an initial paint
// request.
//
WidgetAdd(WIDGET_ROOT, (tWidget *)&g_sMenuWidget);
WidgetPaint(WIDGET_ROOT);
//
// Set the focus handle to the menu widget. Any button events will be
// sent to this widget
//
g_ui32KeyFocusWidgetHandle = (uint32_t)&g_sMenuWidget;
//
// Forever loop to run the application
//
while(1)
{
//
// Each time the timer tick occurs, process any button events.
//
if(g_ui32TickCount != ui32LastTickCount)
{
//
// Remember last tick count
//
ui32LastTickCount = g_ui32TickCount;
//
// Read the debounced state of the buttons.
//
ui8ButtonState = ButtonsPoll(&ui8ButtonChanged, 0);
//
// Pass any button presses through to the widget message
// processing mechanism. The widget that has the button event
// focus (probably the menu widget) will catch these button events.
//
if(BUTTON_PRESSED(SELECT_BUTTON, ui8ButtonState, ui8ButtonChanged))
{
SendWidgetKeyMessage(WIDGET_MSG_KEY_SELECT);
}
if(BUTTON_PRESSED(UP_BUTTON, ui8ButtonState, ui8ButtonChanged))
{
SendWidgetKeyMessage(WIDGET_MSG_KEY_UP);
}
if(BUTTON_PRESSED(DOWN_BUTTON, ui8ButtonState, ui8ButtonChanged))
{
SendWidgetKeyMessage(WIDGET_MSG_KEY_DOWN);
}
if(BUTTON_PRESSED(LEFT_BUTTON, ui8ButtonState, ui8ButtonChanged))
{
SendWidgetKeyMessage(WIDGET_MSG_KEY_LEFT);
}
if(BUTTON_PRESSED(RIGHT_BUTTON, ui8ButtonState, ui8ButtonChanged))
{
SendWidgetKeyMessage(WIDGET_MSG_KEY_RIGHT);
}
}
//
// Tell the OTG library code how much time has passed in milliseconds
// since the last call.
//
USBOTGMain(GetTickms());
//
// Call functions as needed to keep the host or device mode running.
//
if(g_iCurrentUSBMode == eUSBModeDevice)
{
USBSerialRun();
}
else if(g_iCurrentUSBMode == eUSBModeHost)
{
USBStickRun();
}
//
// If in the logging state, then call the logger run function. This
// keeps the data acquisition running.
//
if((g_iLoggerState == eSTATE_LOGGING) ||
(g_iLoggerState == eSTATE_VIEWING))
{
if(AcquireRun() && g_sConfigState.ui32SleepLogging)
{
//
// If sleep logging is enabled, then at this point we have
// stored the first data item, now save the state and start
// hibernation. Wait for the power to be cut.
//
SetSavedState(&g_sConfigState);
HibernateWakeSet(HIBERNATE_WAKE_PIN | HIBERNATE_WAKE_RTC);
HibernateRequest();
for(;;)
{
}
}
//
// If viewing instead of logging then request a repaint to keep
// the viewing window updated.
//
if(g_iLoggerState == eSTATE_VIEWING)
{
WidgetPaint(WIDGET_ROOT);
}
}
//
// If in the saving state, then save data from flash storage to
// USB stick.
//
if(g_iLoggerState == eSTATE_SAVING)
{
//
// Save data from flash to USB
//
FlashStoreSave();
//
// Return to idle state
//
g_iLoggerState = eSTATE_IDLE;
}
//
// If in the erasing state, then erase the data stored in flash.
//
if(g_iLoggerState == eSTATE_ERASING)
{
//
// Save data from flash to USB
//
FlashStoreErase();
//
// Return to idle state
//
g_iLoggerState = eSTATE_IDLE;
}
//
// If in the flash reporting state, then show the report of the amount
// of used and free flash memory.
//
if(g_iLoggerState == eSTATE_FREEFLASH)
{
//
// Report free flash space
//
FlashStoreReport();
//
// Return to idle state
//
g_iLoggerState = eSTATE_IDLE;
}
//
// If we are exiting the clock setting widget, that means that control
// needs to be given back to the menu system.
//
if(g_iLoggerState == eSTATE_CLOCKEXIT)
{
//
// Give the button event focus back to the menu system
//
g_ui32KeyFocusWidgetHandle = (uint32_t)&g_sMenuWidget;
//
// Send a button event to the menu widget that means the left
// key was pressed. This signals the menu widget to deactivate
// the current child widget (which was the clock setting wigdet).
// This will cause the menu widget to slide the clock set widget
// off the screen and resume control of the display.
//
SendWidgetKeyMessage(WIDGET_MSG_KEY_LEFT);
g_iLoggerState = eSTATE_IDLE;
}
//
// Process any new messages that are in the widget queue. This keeps
// the user interface running.
//
WidgetMessageQueueProcess();
}
}
//*****************************************************************************
//
// This is the main loop that runs the application.
//
//*****************************************************************************
int
main(void)
{
uint_fast32_t ui32LastTickCount;
bool bLastSuspend;
//
// Enable lazy stacking for interrupt handlers. This allows floating-point
// instructions to be used within interrupt handlers, but at the expense of
// extra stack usage.
//
ROM_FPULazyStackingEnable();
//
// Set the clocking to run from the PLL at 50MHz.
//
ROM_SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_16MHZ);
//
// Enable the GPIO port that is used for the on-board LED.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
//
// Enable the GPIO pin for the Blue LED (PF2).
//
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3);
//
// Enable the UART.
//
ConfigureUART();
UARTprintf("Keyboard device application\n");
// Configure USB0DM & USB0DP (PD4 & PD5)
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
SysCtlGPIOAHBEnable(SYSCTL_PERIPH_GPIOD);
ROM_GPIOPinTypeUSBAnalog(GPIO_PORTD_AHB_BASE, GPIO_PIN_4 | GPIO_PIN_5);
//Configure USB0ID & USB0VBUS (PB0 & PB1)
// ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
// ROM_GPIOPinTypeUSBAnalog(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1);
//
// Erratum workaround for silicon revision A1. VBUS must have pull-down.
//
if(CLASS_IS_TM4C123 && REVISION_IS_A1)
{
HWREG(GPIO_PORTB_BASE + GPIO_O_PDR) |= GPIO_PIN_1;
}
//
// Initialize the buttons driver
//
ButtonsInit();
//
// Not configured initially.
//
g_bConnected = false;
g_bSuspended = false;
bLastSuspend = false;
//
// Initialize the USB stack for device mode.
//
//USBStackModeSet(0, eUSBModeDevice, 0);
USBStackModeSet(0, eUSBModeForceDevice, 0);
//
// Pass our device information to the USB HID device class driver,
// initialize the USB
// controller and connect the device to the bus.
//
USBDHIDKeyboardInit(0, &g_sKeyboardDevice);
//
// Set the system tick to fire 100 times per second.
//
ROM_SysTickPeriodSet(ROM_SysCtlClockGet() / SYSTICKS_PER_SECOND);
ROM_SysTickIntEnable();
ROM_SysTickEnable();
//
// The main loop starts here. We begin by waiting for a host connection
// then drop into the main keyboard handling section. If the host
// disconnects, we return to the top and wait for a new connection.
//
while(1)
{
uint8_t ui8Buttons;
uint8_t ui8ButtonsChanged;
//
// Tell the user what we are doing and provide some basic instructions.
//
UARTprintf("Waiting for host...\n");
//
// Wait here until USB device is connected to a host.
//
while(!g_bConnected)
{
}
//
// Update the status.
//
UARTprintf("Host connected...\n");
//
// Enter the idle state.
//
g_eKeyboardState = STATE_IDLE;
//
// Assume that the bus is not currently suspended if we have just been
// configured.
//
bLastSuspend = false;
//
// Keep transferring characters from the UART to the USB host for as
// long as we are connected to the host.
//
while(g_bConnected)
{
//
// Remember the current time.
//
ui32LastTickCount = g_ui32SysTickCount;
//
// Has the suspend state changed since last time we checked?
//
if(bLastSuspend != g_bSuspended)
{
//
// Yes - the state changed so update the display.
//
bLastSuspend = g_bSuspended;
UARTprintf(bLastSuspend ? "Bus suspended...\n" :"Host connected...\n");
}
//
// See if the button was just pressed.
//
ui8Buttons = ButtonsPoll(&ui8ButtonsChanged, 0);
if(BUTTON_PRESSED(LEFT_BUTTON, ui8Buttons, ui8ButtonsChanged))
{
//
// If the bus is suspended then resume it. Otherwise, type
// some "random" characters.
//
if(g_bSuspended)
{
USBDHIDKeyboardRemoteWakeupRequest(
(void *)&g_sKeyboardDevice);
}
else
{
SendString("Make the Switch to TI Microcontrollers!");
}
}
//
// Wait for at least 1 system tick to have gone by before we poll
// the buttons again.
//
while(g_ui32SysTickCount == ui32LastTickCount)
{
}
}
//
// Dropping out of the previous loop indicates that the host has
// disconnected so go back and wait for reconnection.
//
if(g_bConnected == false)
{
UARTprintf("Host disconnected...\n");
}
}
}
//*****************************************************************************
//
// This is the main loop that runs the application.
//
//*****************************************************************************
int
main(void)
{
unsigned long ulLastTickCount;
tBoolean bLastSuspend;
tRectangle sRect;
tContext sContext;
long lCenterX;
//
// Enable lazy stacking for interrupt handlers. This allows floating-point
// instructions to be used within interrupt handlers, but at the expense of
// extra stack usage.
//
ROM_FPULazyStackingEnable();
//
// Set the clocking to run from the PLL at 50MHz.
//
ROM_SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_16MHZ);
//
// Configure the required pins for USB operation.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOG);
ROM_GPIOPinConfigure(GPIO_PG4_USB0EPEN);
ROM_GPIOPinTypeUSBDigital(GPIO_PORTG_BASE, GPIO_PIN_4);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOL);
ROM_GPIOPinTypeUSBAnalog(GPIO_PORTL_BASE, GPIO_PIN_6 | GPIO_PIN_7);
ROM_GPIOPinTypeUSBAnalog(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1);
//
// Erratum workaround for silicon revision A1. VBUS must have pull-down.
//
if(CLASS_IS_BLIZZARD && REVISION_IS_A1)
{
HWREG(GPIO_PORTB_BASE + GPIO_O_PDR) |= GPIO_PIN_1;
}
//
// Enable the GPIO that is used for the on-board LED.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOG);
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTG_BASE, GPIO_PIN_2);
ROM_GPIOPinWrite(GPIO_PORTG_BASE, GPIO_PIN_2, 0);
//
// Initialize the buttons driver
//
ButtonsInit();
//
// Initialize the display driver.
//
CFAL96x64x16Init();
//
// Initialize the graphics context and find the middle X coordinate.
//
GrContextInit(&sContext, &g_sCFAL96x64x16);
lCenterX = GrContextDpyWidthGet(&sContext) / 2;
//
// Fill the top part of the screen with blue to create the banner.
//
sRect.sXMin = 0;
sRect.sYMin = 0;
sRect.sXMax = GrContextDpyWidthGet(&sContext) - 1;
sRect.sYMax = 9;
GrContextForegroundSet(&sContext, ClrDarkBlue);
GrRectFill(&sContext, &sRect);
//
// Change foreground for white text.
//
GrContextForegroundSet(&sContext, ClrWhite);
//
// Put the application name in the middle of the banner.
//
GrContextFontSet(&sContext, g_pFontFixed6x8);
GrStringDrawCentered(&sContext, "usb-dev-keyboard", -1, lCenterX, 4, 0);
//
// Not configured initially.
//
g_bConnected = false;
g_bSuspended = false;
bLastSuspend = false;
//
// Initialize the USB stack for device mode.
//
USBStackModeSet(0, USB_MODE_DEVICE, 0);
//
// Pass our device information to the USB HID device class driver,
// initialize the USB
// controller and connect the device to the bus.
//
USBDHIDKeyboardInit(0, &g_sKeyboardDevice);
//
// Set the system tick to fire 100 times per second.
//
ROM_SysTickPeriodSet(ROM_SysCtlClockGet() / SYSTICKS_PER_SECOND);
ROM_SysTickIntEnable();
ROM_SysTickEnable();
//
// The main loop starts here. We begin by waiting for a host connection
// then drop into the main keyboard handling section. If the host
// disconnects, we return to the top and wait for a new connection.
//
while(1)
{
unsigned char ucButtons;
unsigned char ucButtonsChanged;
//
// Tell the user what we are doing and provide some basic instructions.
//
GrStringDrawCentered(&sContext, " Waiting ", -1, lCenterX, 22, 1);
GrStringDrawCentered(&sContext, " for host ... ", -1, lCenterX, 32, 1);
//
// Wait here until USB device is connected to a host.
//
while(!g_bConnected)
{
}
//
// Update the status.
//
GrStringDrawCentered(&sContext, " Host ", -1, lCenterX, 22, 1);
GrStringDrawCentered(&sContext, " connected ... ", -1, lCenterX, 32, 1);
//
// Enter the idle state.
//
g_eKeyboardState = STATE_IDLE;
//
// Assume that the bus is not currently suspended if we have just been
// configured.
//
bLastSuspend = false;
//
// Keep transferring characters from the UART to the USB host for as
// long as we are connected to the host.
//
while(g_bConnected)
{
//
// Remember the current time.
//
ulLastTickCount = g_ulSysTickCount;
//
// Has the suspend state changed since last time we checked?
//
if(bLastSuspend != g_bSuspended)
{
//
// Yes - the state changed so update the display.
//
bLastSuspend = g_bSuspended;
if(bLastSuspend)
{
GrStringDrawCentered(&sContext, " Bus ", -1,
lCenterX, 22, 1);
GrStringDrawCentered(&sContext, " suspended ... ", -1,
lCenterX, 32, 1);
}
else
{
GrStringDrawCentered(&sContext, " Host ", -1,
lCenterX, 22, 1);
GrStringDrawCentered(&sContext, " connected ... ",
-1, lCenterX, 32, 1);
}
}
//
// See if the button was just pressed.
//
ucButtons = ButtonsPoll(&ucButtonsChanged, 0);
if(BUTTON_PRESSED(SELECT_BUTTON, ucButtons, ucButtonsChanged))
{
//
// If the bus is suspended then resume it. Otherwise, type
// some "random" characters.
//
if(g_bSuspended)
{
USBDHIDKeyboardRemoteWakeupRequest(
(void *)&g_sKeyboardDevice);
}
else
{
SendString("Make the Switch to TI Microcontrollers!");
}
}
//
// Wait for at least 1 system tick to have gone by before we poll
// the buttons again.
//
while(g_ulSysTickCount == ulLastTickCount)
{
}
}
}
}
void nodeSleep(u16 tenthSeconds)
{
// ************** Power down the other board peripherals
Leds_off();
// ************** Power down the radio
// wait for radio to be done
u8 state = BUSY_TX_ARET;
while (state == BUSY_TX_ARET ||
state == BUSY_RX_AACK)
state = radioGetTrxState();
// Now put radio to sleep
radioEnterSleepMode();
// TODO: figure out what needs to be put to sleep to minimize current consumption
// ************** Power down the on-chip modules
// PRR = 0xbf; ???
// Disable ADC
// ADCSRA &= ~(1 << ADEN);
// Turn off comparator
// ACSR |= (1 <<
// turn off ports etc
// Turn off BOD
// This should only be done once -- No need to do it over again
/*
AVR_ENTER_CRITICAL_REGION();
#define BODS 6
#define BODSE 5
MCUCR |= (1 << BODSE) | (1<< BODS);
MCUCR &= ~(1 << BODSE);
AVR_LEAVE_CRITICAL_REGION();
*/
// ************** Set the timer to wake up
// Set TIMER2 Asyncronous Mode.
ASSR |= (1 << AS2);
// Set TIMER2 Prescaler to 1024.
TCCR2B |= ((1 << CS22)|(1 << CS21)|(1 << CS20));
// Wait for TCNT2 write to finish.
while(ASSR & (1 << TCR2BUB))
;
// Sleep as many times as needed to sleep for the full time
while (tenthSeconds)
{
// This is to get the node manually out of sleeping mode --
// Might take up to 7.5Sec to detect button press
//
if (BUTTON_PRESSED() )
{
Led1_on();
macConfig.sleeping = false;
while (BUTTON_PRESSED())
;
Led1_off();
break; // exit the Sleeping loop
}
// Set TIMER2 output compare register from user.
if (tenthSeconds > 75)
{
// Just decrement by the max timeout
OCR2A = 240; // 7.5 seconds, max timeout
tenthSeconds -= 75;
}
else
{
// Can measure the remaining time in one timer cycle
tenthSeconds = tenthSeconds * 16 / 5;
if (!tenthSeconds)
tenthSeconds++;
OCR2A = tenthSeconds;
tenthSeconds = 0;
}
// Wait for OCR2 write to finish.
while(ASSR & (1 << OCR2AUB))
;
// Reset TIMER2 timer counter value.
TCNT2 = 0;
// Wait for TCNT2 write to finish before entering sleep.
while(ASSR & (1 << TCN2UB))
;
// Clear interrupt flag
TIFR2 |= (1 << OCF2A);
// Enable TIMER2 output compare interrupt.
TIMSK2 |= (1 << OCIE2A);
// ************** Go to sleep
AVR_ENTER_CRITICAL_REGION();
set_sleep_mode( SLEEP_MODE_PWR_SAVE);
sleep_enable();
sei();
sleep_cpu(); // sleeping right here
sleep_disable();
AVR_LEAVE_CRITICAL_REGION();
wdt_disable();
}
// ************** Awake now, wake up everything
// PRR = 0x03; ??
if (SERIAL)
serial_init(NULL);
debugMsgStr("\r\nNode slept");
if ( macConfig.associated)
HAL_ADC_INIT();
// Bring SPI port back up (must re-init after sleep)
radio_spi_init();
// Wake up radio.
radioLeaveSleepMode();
// Set RF212 to 250KB mode.
// TODO: do I need to call this??
//radioSetup900();
radioSetTrxState(PLL_ON);
}
