//*****************************************************************************
//
//! Initialize the OLED display.
//!
//! \param ulFrequency specifies the SSI Clock Frequency to be used.
//!
//! This function initializes the SSI interface to the OLED display and
//! configures the SSD1329 controller on the panel.
//!
//! \return None.
//
//*****************************************************************************
void
RIT128x96x4Init(unsigned long ulFrequency)
{
unsigned long ulIdx;
// Initialize the semaphore
OS_InitSemaphore(&oLEDFree, 1);
//
// Enable the SSI0 and GPIO port blocks as they are needed by this driver.
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIO_OLEDDC);
//
// Configure the SSI0CLK and SSIOTX pins for SSI operation.
//
GPIOPinTypeSSI(GPIO_PORTA_BASE, GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_5);
GPIOPadConfigSet(GPIO_PORTA_BASE, GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_5,
GPIO_STRENGTH_8MA, GPIO_PIN_TYPE_STD_WPU);
//
// Configure the GPIO port pin used as a D/Cn signal for OLED device,
// and the port pin used to enable power to the OLED panel.
//
GPIOPinTypeGPIOOutput(GPIO_OLEDDC_BASE, GPIO_OLEDDC_PIN | GPIO_OLEDEN_PIN);
GPIOPadConfigSet(GPIO_OLEDDC_BASE, GPIO_OLEDDC_PIN | GPIO_OLEDEN_PIN,
GPIO_STRENGTH_8MA, GPIO_PIN_TYPE_STD);
GPIOPinWrite(GPIO_OLEDDC_BASE, GPIO_OLEDDC_PIN | GPIO_OLEDEN_PIN,
GPIO_OLEDDC_PIN | GPIO_OLEDEN_PIN);
HWREGBITW(&g_ulSSIFlags, FLAG_DC_HIGH) = 1;
//
// Configure and enable the SSI0 port for master mode.
//
RIT128x96x4Enable(ulFrequency);
//
// Clear the frame buffer.
//
RIT128x96x4Clear();
//
// Initialize the SSD1329 controller. Loop through the initialization
// sequence array, sending each command "string" to the controller.
//
for(ulIdx = 0; ulIdx < sizeof(g_pucRIT128x96x4Init);
ulIdx += g_pucRIT128x96x4Init[ulIdx] + 1)
{
//
// Send this command.
//
RITWriteCommand(g_pucRIT128x96x4Init + ulIdx + 1,
g_pucRIT128x96x4Init[ulIdx] - 1);
}
}
//*****************************************************************************
//
//! Initialize the OLED display.
//!
//! \param ulFrequency specifies the SSI Clock Frequency to be used.
//!
//! This function initializes the SSI interface to the OLED display and
//! configures the SSD1329 controller on the panel.
//!
//! This function is contained in <tt>rit128x96x4.c</tt>, with
//! <tt>rit128x96x4.h</tt> containing the API definition for use by
//! applications.
//!
//! \return None.
//
//*****************************************************************************
void
RIT128x96x4Init(unsigned long ulFrequency)
{
unsigned long ulIdx;
/* Determine which board is being used. */
if( SysCtlPeripheralPresent( SYSCTL_PERIPH_ETH ) )
{
/* Ethernet is present, we must be using the LM3S8962 EK. */
ulGPIOId = LM3S8962_SYSCTL_PERIPH_GPIO_OLEDDC;
ulGPIOBase = LM3S8962_GPIO_OLEDDC_BASE;
ulOLEDDC_PIN = GPIO_PIN_6;
ulOLEDEN_PIN = GPIO_PIN_7;
}
else
{
/* Ethernet is not present, we must be using the LM3S1968 EK. */
ulGPIOId = LM3S1968_SYSCTL_PERIPH_GPIO_OLEDDC;
ulGPIOBase = LM3S1968_GPIO_OLEDDC_BASE;
ulOLEDDC_PIN = GPIO_PIN_2;
ulOLEDEN_PIN = GPIO_PIN_3;
}
//
// Enable the SSI0 and GPIO port blocks as they are needed by this driver.
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
SysCtlPeripheralEnable(ulGPIOId);
//
// Configure the SSI0CLK and SSIOTX pins for SSI operation.
//
GPIOPinTypeSSI(GPIO_PORTA_BASE, GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_5);
GPIOPadConfigSet(GPIO_PORTA_BASE, GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_5,
GPIO_STRENGTH_8MA, GPIO_PIN_TYPE_STD_WPU);
//
// Configure the GPIO port pin used as a D/Cn signal for OLED device,
// and the port pin used to enable power to the OLED panel.
//
GPIOPinTypeGPIOOutput(ulGPIOBase, ulOLEDDC_PIN | ulOLEDEN_PIN);
GPIOPadConfigSet(ulGPIOBase, ulOLEDDC_PIN | ulOLEDEN_PIN,
GPIO_STRENGTH_8MA, GPIO_PIN_TYPE_STD);
GPIOPinWrite(ulGPIOBase, ulOLEDDC_PIN | ulOLEDEN_PIN,
ulOLEDDC_PIN | ulOLEDEN_PIN);
//
// Configure and enable the SSI0 port for master mode.
//
RIT128x96x4Enable(ulFrequency);
//
// Clear the frame buffer.
//
RIT128x96x4Clear();
//
// Initialize the SSD1329 controller. Loop through the initialization
// sequence array, sending each command "string" to the controller.
//
for(ulIdx = 0; ulIdx < sizeof(g_pucRIT128x96x4Init);
ulIdx += g_pucRIT128x96x4Init[ulIdx] + 1)
{
//
// Send this command.
//
RITWriteCommand(g_pucRIT128x96x4Init + ulIdx + 1,
g_pucRIT128x96x4Init[ulIdx] - 1);
}
}
