HRESULT i2cInitialize(void)
{
HRESULT hResult = NO_ERROR;
//enabel trace to debug the startup.
//sysTraceStart(0);
MPTR(IC_INTR_MASK) = 0; //disable all i2c interrupt
MPTR(IC_RX_TL) = 0; //rx threshhold to 1, to correct error in the databook
hResult = TCSemaphoreOpenIRQ(&i2cBufSemId, 1);
if (hResult != NO_ERROR)
return hResult;
hResult = TCSemaphoreOpenIRQ(&i2cCompleteSemId, 0);
if (hResult != NO_ERROR)
return hResult;
TCInterruptInstallHandler(CYGNUM_HAL_INTERRUPT_I2C, NULL, i2cIntDsr);
i2cSetup(I2C_7_BIT_ADDR, I2C_STANDARD_SPEED);
#ifdef _CLI
hResult += i2cInstallCLITools();
#endif
return hResult;
}
/** \brief Initialisation of MicroOLED Library.
Setup IO pins for SPI port then send initialisation commands to the SSD1306 controller inside the OLED.
*/
void MicroOLED::begin()
{
// default 5x7 font
setFontType(0);
setColor(WHITE);
setDrawMode(NORM);
setCursor(0,0);
pinMode(dcPin, OUTPUT);
pinMode(rstPin, OUTPUT);
// Set up the selected interface:
if (interface == MODE_SPI)
spiSetup();
else if (interface == MODE_I2C)
i2cSetup();
else if (interface == MODE_PARALLEL)
parallelSetup();
// Display reset routine
pinMode(rstPin, OUTPUT); // Set RST pin as OUTPUT
digitalWrite(rstPin, HIGH); // Initially set RST HIGH
delay(5); // VDD (3.3V) goes high at start, lets just chill for 5 ms
digitalWrite(rstPin, LOW); // Bring RST low, reset the display
delay(10); // wait 10ms
digitalWrite(rstPin, HIGH); // Set RST HIGH, bring out of reset
// Display Init sequence for 64x48 OLED module
command(DISPLAYOFF); // 0xAE
command(SETDISPLAYCLOCKDIV); // 0xD5
command(0x80); // the suggested ratio 0x80
command(SETMULTIPLEX); // 0xA8
command(0x2F);
command(SETDISPLAYOFFSET); // 0xD3
command(0x0); // no offset
command(SETSTARTLINE | 0x0); // line #0
command(CHARGEPUMP); // enable charge pump
command(0x14);
command(NORMALDISPLAY); // 0xA6
command(DISPLAYALLONRESUME); // 0xA4
command(SEGREMAP | 0x1);
command(COMSCANDEC);
command(SETCOMPINS); // 0xDA
command(0x12);
command(SETCONTRAST); // 0x81
command(0x8F);
command(SETPRECHARGE); // 0xd9
command(0xF1);
command(SETVCOMDESELECT); // 0xDB
command(0x40);
command(DISPLAYON); //--turn on oled panel
clear(ALL); // Erase hardware memory inside the OLED controller to avoid random data in memory.
}
int S11059::setup(){
time=millis();
return i2cSetup();
}
