void buttonInit(void) {
TRISBbits.TRISB2 = 1;
TRISBbits.TRISB0 = 1;
TRISBbits.TRISB3 = 1;
TRISBbits.TRISB4 = 1;
TRISBbits.TRISB5 = 1;
AD1PCFG = BIT_0 | BIT_2 | BIT_3 | BIT_4 | BIT_5;
//AD1PCFG = 0xFF;
mCNOpen(CONFIG, PINS, PULLUPS);
ConfigCNPullups(CN2_PULLUP_ENABLE);
ConfigCNPullups(CN3_PULLUP_ENABLE);
ConfigCNPullups(CN5_PULLUP_ENABLE);
ConfigCNPullups(CN6_PULLUP_ENABLE);
ConfigCNPullups(CN7_PULLUP_ENABLE);
}
/*-----------------------------------------------------------*/
static void prvSetupHardware(void) {
/* Setup the CPU clocks, and configure the interrupt controller. */
SYSTEMConfigPerformance(configCPU_CLOCK_HZ);
mOSCSetPBDIV(OSC_PB_DIV_2);
INTEnableSystemMultiVectoredInt();
/* LEDs off. */
mPORTDClearBits(BIT_0 | BIT_1 | BIT_2);
/* LEDs are outputs. */
mPORTDSetPinsDigitalOut(BIT_0 | BIT_1 | BIT_2);
ConfigCNPullups(CN15_PULLUP_ENABLE | CN16_PULLUP_ENABLE | CN19_PULLUP_ENABLE);
}
static void PB_IntInit (void)
{
CPU_INT32U dummy_read;
CPU_INT16U config;
config = CHANGE_INT_ON
| CHANGE_INT_PRI_3;
CNCON = 0x8000; /* Enable the change notice module */
EnableCN19(); /* Enable change notice pin 19, tied to our push button */
ConfigCNPullups(CN19_PULLUP_ENABLE); /* Enable a weak pull-up corresponding to the CN pin */
dummy_read = PORTD; /* Perform a dummy read to clear any mismatch conditions */
mCNClearIntFlag(); /* Clear the int flag just in case it was triggered */
ConfigIntCN(config); /* Enable CN interrupts at priority level 3 */
}
/****************************************************************************
Function:
static void InitializeBoard(void)
Description:
This routine initializes the hardware. It is a generic initialization
routine for many of the Microchip development boards, using definitions
in HardwareProfile.h to determine specific initialization.
Precondition:
None
Parameters:
None - None
Returns:
None
Remarks:
None
***************************************************************************/
static void InitializeBoard(void) {
// WiFi Module hardware Initialization handled by Library
// Enable multi-vectored interrupts
INTEnableSystemMultiVectoredInt();
// Enable optimal performance
SYSTEMConfigPerformance(GetSystemClock());
mOSCSetPBDIV(OSC_PB_DIV_1); // Use 1:1 CPU Core:Peripheral clocks
// Disable JTAG port so we get our I/O pins back, but first
// wait 50ms so if you want to reprogram the part with
// JTAG, you'll still have a tiny window before JTAG goes away.
// The PIC32 Starter Kit debuggers use JTAG and therefore must not
// disable JTAG.
DelayMs(50);
DDPCONbits.JTAGEN = 0;
// LEDs
LEDS_OFF();
mPORTESetPinsDigitalOut(BIT_5 | BIT_6 | BIT_7);
// Switches
mPORTDSetPinsDigitalIn(BIT_4 | BIT_5 | BIT_6);
ConfigCNPullups(CN13_PULLUP_ENABLE | CN14_PULLUP_ENABLE | CN15_PULLUP_ENABLE);
// LCD
mPORTESetPinsDigitalOut(BIT_0 | BIT_1 | BIT_2 | BIT_3);
//Configure LCD SPI pins
mPORTFSetPinsDigitalOut(BIT_8);
mPORTDSetPinsDigitalOut(BIT_15);
//SPI Flash
mPORTDSetPinsDigitalOut(BIT_14);
//UART
mPORTFSetPinsDigitalOut(BIT_5);
mPORTFSetPinsDigitalIn(BIT_4);
//MiWi
#if defined(MRF24J40) || defined(MRF49XA)
PHY_CS = 1;
mPORTDSetPinsDigitalOut(BIT_9);
PHY_RESETn = 1;
mPORTDSetPinsDigitalOut(BIT_11);
#endif
#if defined(MRF49XA)
nFSEL_TRIS = 0;
FINT_TRIS = 1;
nFSEL = 1;
#elif defined(MRF24J40)
PHY_WAKE = 1;
mPORTBSetPinsDigitalOut(BIT_9);
#else
Data_nCS_TRIS = 0;
Config_nCS_TRIS = 0;
Data_nCS = 1;
Config_nCS = 1;
IRQ1_INT_TRIS = 1;
IRQ0_INT_TRIS = 1;
#endif
/* Set the Port Directions of SDO, SDI, Clock & Slave Select Signal */
/* Set SCK port pin to output */
mPORTDSetPinsDigitalOut(BIT_10);
/* Set SDO port pin to output */
mPORTDSetPinsDigitalOut(BIT_0);
/* Set SDI port pin to input */
mPORTCSetPinsDigitalIn(BIT_4);
/* Set INT1, INT2 port pins to input */
mPORTESetPinsDigitalIn(BIT_8 | BIT_9);
/* Clear SPI1CON register */
SPI1CONCLR = 0xFFFFFFFF;
#ifdef HARDWARE_SPI
unsigned int pbFreq;
/* Enable SPI1, Set to Master Mode & Set CKE bit : Serial output data changes on transition
from active clock state to Idle clock state */
SPI1CON = 0x00008120;
/* Peripheral Bus Frequency = System Clock / PB Divider */
pbFreq = (DWORD) CLOCK_FREQ / (1 << mOSCGetPBDIV());
/* PB Frequency can be maximum 40 MHz */
if (pbFreq > (2 * MAX_SPI_CLK_FREQ_FOR_P2P)) {
{
unsigned int SPI_Clk_Freq;
unsigned char SPI_Brg1 = 1;
//For the SPI1
/* Continue the loop till you find SPI Baud Rate Register Value */
while (1) {
/* SPI Clock Calculation as per PIC32 Manual */
SPI_Clk_Freq = pbFreq / (2 * (SPI_Brg1 + 1));
if (SPI_Clk_Freq <= MAX_SPI_CLK_FREQ_FOR_P2P) {
break;
}
SPI_Brg1++;
}
mSpiChnSetBrg(1, SPI_Brg1);
}
} else {
/* Set SPI1 Baud Rate */
mSpiChnSetBrg(1, 0);
}
#endif
/* Set the Interrupt Priority */
mINT2SetIntPriority(4);
#if defined(MRF89XA)
mINT1SetIntPriority(4);
#endif
/* Set Interrupt Subpriority Bits for INT2 */
mINT2SetIntSubPriority(2);
#if defined(MRF89XA)
mINT2SetIntSubPriority(1);
#endif
/* Set INT2 to falling edge */
mINT2SetEdgeMode(0);
#if defined(MRF89XA)
mINT1SetEdgeMode(1);
mINT2SetEdgeMode(1);
#endif
/* Enable INT2 */
mINT2IntEnable(1);
#if defined(MRF89XA)
mINT2IntEnable(1);
#endif
/* Enable Multi Vectored Interrupts */
// INTEnableSystemMultiVectoredInt();
#if defined(MRF89XA)
PHY_IRQ1 = 0;
PHY_IRQ0 = 0;
PHY_RESETn_TRIS = 1;
#else
RFIF = 0;
if (RF_INT_PIN == 0) {
RFIF = 1;
}
#endif
// Initialize the EEPROM
XEEInit();
// UART Initialization
#if defined(STACK_USE_UART)
UARTTX_TRIS = 0;
UARTRX_TRIS = 1;
UMODE = 0x8000; // Set UARTEN. Note: this must be done before setting UTXEN
USTA = 0x00001400; // RXEN set, TXEN set
#define CLOSEST_UBRG_VALUE ((GetPeripheralClock()+8ul*BAUD_RATE)/16/BAUD_RATE-1)
#define BAUD_ACTUAL (GetPeripheralClock()/16/(CLOSEST_UBRG_VALUE+1))
#define BAUD_ERROR ((BAUD_ACTUAL > BAUD_RATE) ? BAUD_ACTUAL-BAUD_RATE : BAUD_RATE-BAUD_ACTUAL)
#define BAUD_ERROR_PRECENT ((BAUD_ERROR*100+BAUD_RATE/2)/BAUD_RATE)
#if (BAUD_ERROR_PRECENT > 3)
#warning UART frequency error is worse than 3%
#elif (BAUD_ERROR_PRECENT > 2)
#warning UART frequency error is worse than 2%
#endif
UBRG = CLOSEST_UBRG_VALUE;
#endif
}
//********************************
//********************************
//********** INITIALISE **********
//********************************
//********************************
void initialise (void)
{
BYTE data;
//##### GENERAL NOTE ABOUT PIC32'S #####
//Try and use the peripheral libraries instead of special function registers for everything (literally everything!) to avoid
//bugs that can be caused by the pipeline and interrupts.
//---------------------------------
//----- CONFIGURE PERFORMANCE -----
//---------------------------------
//----- SETUP EVERYTHING FOR OPTIMUM PERFORMANCE -----
SYSTEMConfigPerformance(80000000ul); //Note this sets peripheral bus to '1' max speed (regardless of configuration bit setting)
//Use PBCLK divider of 1:1 to calculate UART baud, timer tick etc
//----- SET PERIPHERAL BUS DIVISOR -----
//To minimize dynamic power the PB divisor should be chosen to run the peripherals at the lowest frequency that provides acceptable system performance
mOSCSetPBDIV(OSC_PB_DIV_2); //OSC_PB_DIV_1, OSC_PB_DIV_2, OSC_PB_DIV_4, OSC_PB_DIV_8,
//----- SETUP INTERRUPTS -----
INTEnableSystemMultiVectoredInt();
//-------------------------
//----- SETUP IO PINS -----
//-------------------------
//(Device will powerup with all IO pins as inputs)
//----- TURN OFF THE JTAG PORT -----
//(JTAG is on by default)
//mJTAGPortEnable(0); //Must be on for Microchip Multimedia Development board
#define PORTA_IO 0xc2ff //Setup the IO pin type (0 = output, 1 = input)
mPORTAWrite(0xc033); //Set initial ouput pin states
mPORTASetPinsDigitalIn(PORTA_IO); //(Sets high bits as input)
mPORTASetPinsDigitalOut(~PORTA_IO); //(Sets high bits as output)
#define PORTB_IO 0xfbff //Setup the IO pin type (0 = output, 1 = input)
mPORTBWrite(0x6d13); //Set initial ouput pin states
mPORTBSetPinsDigitalIn(PORTB_IO); //(Sets high bits as input)
mPORTBSetPinsDigitalOut(~PORTB_IO); //(Sets high bits as output)
mPORTBSetPinsDigitalIn(BIT_0 | BIT_1 | BIT_3 | BIT_4 | BIT_15); //Joystick inputs
#define PORTC_IO 0xf01e //Setup the IO pin type (0 = output, 1 = input)
mPORTCWrite(0x3018); //Set initial ouput pin states
mPORTCSetPinsDigitalIn(PORTC_IO); //(Sets high bits as input)
mPORTCSetPinsDigitalOut(~PORTC_IO); //(Sets high bits as output)
#define PORTD_IO 0x7bfe //Setup the IO pin type (0 = output, 1 = input)
mPORTDWrite(0xbdaf); //Set initial ouput pin states
mPORTDSetPinsDigitalIn(PORTD_IO); //(Sets high bits as input)
mPORTDSetPinsDigitalOut(~PORTD_IO); //(Sets high bits as output)
mPORTDSetPinsDigitalOut(BIT_2 | BIT_1); //LED's 2 and 3
mPORTDSetPinsDigitalIn(BIT_9);
#define PORTE_IO 0x03ff //Setup the IO pin type (0 = output, 1 = input)
mPORTEWrite(0x02a2); //Set initial ouput pin states
mPORTESetPinsDigitalIn(PORTE_IO); //(Sets high bits as input)
mPORTESetPinsDigitalOut(~PORTE_IO); //(Sets high bits as output)
#define PORTF_IO 0x111f //Setup the IO pin type (0 = output, 1 = input)
mPORTFWrite(0x0039); //Set initial ouput pin states
mPORTFSetPinsDigitalIn(PORTF_IO); //(Sets high bits as input)
mPORTFSetPinsDigitalOut(~PORTF_IO); //(Sets high bits as output)
#define PORTG_IO 0xd3cf //Setup the IO pin type (0 = output, 1 = input)
mPORTGWrite(0xf203); //Set initial ouput pin states
mPORTGSetPinsDigitalIn(PORTG_IO); //(Sets high bits as input)
mPORTGSetPinsDigitalOut(~PORTG_IO); //(Sets high bits as output)
//Read pins using:
// mPORTAReadBits(BIT_0);
//Write pins using:
// mPORTAClearBits(BIT_0);
// mPORTASetBits(BIT_0);
// mPORTAToggleBits(BIT_0);
//----- INPUT CHANGE NOTIFICATION CONFIGURATION -----
//EnableCN0();
ConfigCNPullups(CN2_PULLUP_ENABLE | CN3_PULLUP_ENABLE | CN5_PULLUP_ENABLE | CN6_PULLUP_ENABLE | CN12_PULLUP_ENABLE); //Joystick pins
//----- SETUP THE A TO D PINS -----
ENABLE_ALL_DIG;
//---------------------
//----- SETUP USB -----
//---------------------
//The USB specifications require that USB peripheral devices must never source current onto the Vbus pin. Additionally, USB peripherals should not source
//current on D+ or D- when the host/hub is not actively powering the Vbus line. When designing a self powered (as opposed to bus powered) USB peripheral
//device, the firmware should make sure not to turn on the USB module and D+ or D- pull up resistor unless Vbus is actively powered. Therefore, the
//firmware needs some means to detect when Vbus is being powered by the host. A 5V tolerant I/O pin can be connected to Vbus (through a resistor), and
//can be used to detect when Vbus is high (host actively powering), or low (host is shut down or otherwise not supplying power). The USB firmware
//can then periodically poll this I/O pin to know when it is okay to turn on the USB module/D+/D- pull up resistor. When designing a purely bus powered
//peripheral device, it is not possible to source current on D+ or D- when the host is not actively providing power on Vbus. Therefore, implementing this
//bus sense feature is optional. This firmware can be made to use this bus sense feature by making sure "USE_USB_BUS_SENSE_IO" has been defined in the
//HardwareProfile.h file.
// #if defined(USE_USB_BUS_SENSE_IO)
// tris_usb_bus_sense = INPUT_PIN; // See HardwareProfile.h
// #endif
//If the host PC sends a GetStatus (device) request, the firmware must respond and let the host know if the USB peripheral device is currently bus powered
//or self powered. See chapter 9 in the official USB specifications for details regarding this request. If the peripheral device is capable of being both
//self and bus powered, it should not return a hard coded value for this request. Instead, firmware should check if it is currently self or bus powered, and
//respond accordingly. If the hardware has been configured like demonstrated on the PICDEM FS USB Demo Board, an I/O pin can be polled to determine the
//currently selected power source. On the PICDEM FS USB Demo Board, "RA2" is used for this purpose. If using this feature, make sure "USE_SELF_POWER_SENSE_IO"
//has been defined in HardwareProfile.h, and that an appropriate I/O pin has been mapped to it in HardwareProfile.h.
// #if defined(USE_SELF_POWER_SENSE_IO)
// tris_self_power = INPUT_PIN; // See HardwareProfile.h
// #endif
//Enable the USB port now - we will check to see if Vbus is powered at the end of init and disable it if not.
//USBDeviceInit(); //usb_device.c. Initializes USB module SFRs and firmware variables to known states.
//------------------------
//----- SETUP TIMERS -----
//------------------------
//(INCLUDE THE USAGE OF ALL TIMERS HERE EVEN IF NOT SETUP HERE SO THIS IS THE ONE POINT OF
//REFERENCE TO KNOW WHICH TIMERS ARE IN USE AND FOR WHAT).
//----- SETUP TIMER 1 -----
//Used for: Available
//OpenTimer1((T1_ON | T1_IDLE_CON | T1_GATE_OFF | T1_PS_1_4 | T1_SOURCE_INT), 20000);
//----- SETUP TIMER 2 -----
//Used for:
//OpenTimer2((T2_ON | T2_IDLE_CON | T2_GATE_OFF | T2_PS_1_1 | T2_SOURCE_INT), 0xffff); //0xffff = 305Hz
//----- SETUP TIMER 3 -----
//Used for:
//OpenTimer3((T3_ON | T3_IDLE_CON | T3_GATE_OFF | T3_PS_1_1 | T3_SOURCE_INT), PIEZO_TIMER_PERIOD);
//----- SETUP TIMER 4 -----
//Used for:
//OpenTimer4((T4_ON | T4_IDLE_CON | T4_GATE_OFF | T4_PS_1_1 | T4_SOURCE_INT), 20000);
//----- SETUP TIMER 5 -----
//Used for: Heartbeat
OpenTimer5((T5_ON | T5_IDLE_CON | T5_GATE_OFF | T5_PS_1_1 | T5_SOURCE_INT), 40000); //1mS with 80MHz osc and PB_DIV_2
ConfigIntTimer5(T5_INT_ON | T5_INT_PRIOR_7); //1=lowest priority to 7=highest priority. ISR function must specify same value
//---------------------------------
//----- SETUP EVAL BOARD CPLD -----
//---------------------------------
//Graphics bus width = 16
mPORTGSetPinsDigitalOut(BIT_14);
mPORTGSetBits(BIT_14);
//SPI source select = SPI3 (not used)
mPORTGSetPinsDigitalOut(BIT_12);
mPORTGClearBits(BIT_12);
//SPI peripheral destination select = Expansion Slot (not used)
mPORTASetPinsDigitalOut(BIT_7 | BIT_6);
mPORTASetBits(BIT_7);
mPORTAClearBits(BIT_6);
//--------------------------------------
//----- PARALLEL MASTER PORT SETUP -----
//--------------------------------------
PMMODE = 0;
PMAEN = 0;
PMCON = 0;
PMMODE = 0x0610;
PMCONbits.PTRDEN = 1; //Enable RD line
PMCONbits.PTWREN = 1; //Enable WR line
PMCONbits.PMPEN = 1; //Enable PMP
//------------------------------
//----- INITIALISE DISPLAY -----
//------------------------------
display_initialise();
display_test();
//LOAD OUR GLOBAL HTML STYLES FILE READY FOR DISPLAY HTML PAGES
BYTE dummy_styles_count;
DWORD file_size;
if (display_html_setup_read_file(global_css, 0, &file_size))
{
dummy_styles_count = 0;
display_html_read_styles(&file_size, &dummy_styles_count, 1); //1 = this is global styles file
}
}
