//*****************************************************************************
//
//! \brief Disable OTI mode corresponding pin interrupt.
//!
//! \param None
//!
//! \return None
//
//*****************************************************************************
void ADT75IntDisable(void)
{
unsigned long ulBase;
xGPIOSPinIntDisable(ADT75_PIN_OS);
ulBase = xGPIOSPinToPort(ADT75_PIN_OS);
xIntDisable(xSysCtlPeripheraIntNumGet(ulBase));
}
//*****************************************************************************
//
//! \brief Enable OTI mode corresponding pin interrupt.
//!
//! \param None
//!
//! \return None
//
//*****************************************************************************
void ADT75IntEnable(void)
{
unsigned long ulBase;
xGPIOSPinTypeGPIOInput(ADT75_PIN_OS);
xGPIOSPinIntEnable(ADT75_PIN_OS, ADT75_LEVEL_OS);
ulBase = xGPIOSPinToPort(ADT75_PIN_OS);
xIntEnable(xSysCtlPeripheraIntNumGet(ulBase));
}
//*****************************************************************************
//
//! \brief Init interrupts callback for the specified OTI connected pin.
//!
//! \param xtI2CCallback is callback for the specified Port.
//!
//! Init interrupts callback for the specified Port.
//!
//! \return None.
//
//*****************************************************************************
void ADT75IntCallbackInit(xtEventCallback xtI2CCallback)
{
//
// A read operation reset the OTI pin level
//
ADT75RegRead(ADT75_REGISTER_CFG);
//
// Init interrupts callback for the specified Port.
//
xGPIOPinIntCallbackInit(xGPIOSPinToPort(ADT75_PIN_OS),
xGPIOSPinToPin(ADT75_PIN_OS), xtI2CCallback);
}
//Initializes the SPI bus by setting SCK, MOSI, and SS to outputs, pulling SCK and MOSI low, and SS high.
void SPIClass::begin(int spiClock){
// Enable Peripheral SPIx
xSysCtlPeripheralEnable2(spiPort);
xSysCtlPeripheralEnable2(xGPIOSPinToPort(sD13));
// Configure Some GPIO pins as SPIx Mode
sPinTypeSPI(spiPort);
ulDataWidth = xSPI_DATA_WIDTH8;
ulDataFormat = SPI_MODE0;
ulDataMode = MSBFIRST;
xSPIConfigSet(spiPort, spiClock, xSPI_MOTO_FORMAT_MODE_0 | xSPI_DATA_WIDTH8 | xSPI_MSB_FIRST | xSPI_MODE_MASTER);
xSPISSSet(spiPort, xSPI_SS_HARDWARE, xSPI_SS0);
xSPIEnable(spiPort);
}
/*
* Initiate the Wire library and join the I2C bus as a master. This should normally be called only once.
*/
void WireClass::begin(void){
// Enable the i2c&GPIO peripheral
xSysCtlPeripheralEnable2(i2cPort);
xSysCtlPeripheralEnable2(xGPIOSPinToPort(sSDA));
// Congigure the i2c pin
sPinTypeI2C(i2cPort);
//Initialize I2C Module 100K
xI2CMasterInit(i2cPort, 100000);
xI2CMasterEnable(i2cPort);
rxBufferIndex = 0; rxBufferLength = 0;
txBufferIndex = 0; txBufferLength = 0;
}
//*****************************************************************************
//
//! \brief Init the UC1701 LCD.
//!
//! \param ulSpiClock SPI clock to select.
//!
//! This function initialize the mcu SPI as master and specified SPI port.
//!
//! \return None.
//
//*****************************************************************************
void UC1701Init(unsigned long ulSpiClock)
{
//
// Enable the GPIOx port which is connected with UC1701
//
xSysCtlPeripheralEnable(xGPIOSPinToPort(LCD_PIN_SPI_CLK));
xSysCtlPeripheralEnable(xGPIOSPinToPort(LCD_PIN_SPI_CS));
xSysCtlPeripheralEnable(xGPIOSPinToPort(LCD_PIN_SPI_MOSI));
xSysCtlPeripheralEnable(xGPIOSPinToPort(LCD_PIN_CD));
xSysCtlPeripheralEnable(xGPIOSPinToPort(LCD_PIN_RESET));
//
// Enable the SPIx which is connected with UC1701
//
xSysCtlPeripheralEnable2(LCD_PIN_SPI_PORT);
xSysCtlPeripheralReset2(LCD_PIN_SPI_PORT);
//
// Set the chip select pin as OUT_MODE
//
xGPIOSPinDirModeSet(LCD_PIN_SPI_CS, xGPIO_DIR_MODE_OUT);
//
// Set the chip reset pin as OUT_MODE
//
xGPIOSPinDirModeSet(LCD_PIN_CD, xGPIO_DIR_MODE_OUT);
xGPIOSPinDirModeSet(LCD_PIN_RESET, xGPIO_DIR_MODE_OUT);
xSPinTypeSPI(SPI_CLK, LCD_PIN_SPI_CLK);
xSPinTypeSPI(SPI_MOSI, LCD_PIN_SPI_MOSI);
//
// Configure MCU as a master device , 8 bits data width ,MSB first,Mode_0
//
xSPIConfigSet(LCD_PIN_SPI_PORT, ulSpiClock, xSPI_MOTO_FORMAT_MODE_1 |
xSPI_MODE_MASTER |
xSPI_MSB_FIRST |
xSPI_DATA_WIDTH8);
//
// Disable UC1701 when Power up
//
xGPIOSPinWrite(LCD_PIN_SPI_CS, 1);
//
// Reset the chip
//
xGPIOSPinWrite(LCD_PIN_RESET, 0);
delay_ms(2);
xGPIOSPinWrite(LCD_PIN_RESET, 1);
delay_ms(6);
//
// Initial Configuration
//
UC1701CmdWrite(0xe2);//System Reset
UC1701CmdWrite(0x2c);//Power Rise Step1
delay_ms(8);
UC1701CmdWrite(0x2e);//Power Rise Step2
delay_ms(8);
UC1701CmdWrite(0x2f);//Power Rise Step3
delay_ms(8);
UC1701CmdWrite(0x23);
UC1701DoubleCmdWrite(0x81, 0x1f);//Set LCD resistor ratio
UC1701CmdWrite(0xa2);//Bias 1/9
UC1701CmdWrite(0xc0);//Set COM Direction
UC1701CmdWrite(0xa0);//Set SEG Direction
UC1701CmdWrite(0x40);//Set Scroll Line: the first line
UC1701CmdWrite(0xaf);//Display Enable
}