int main(int argc, char **argv)
{
/*
* Initalize chip.
*/
CHIP_Init();
/*
* Use XT oscillator, disable internal RC osc.
*/
CMU_ClockSelectSet(cmuClock_HF, cmuSelect_HFXO);
CMU_OscillatorEnable(cmuOsc_HFRCO, false, false);
SystemCoreClockUpdate();
#if PORTCFG_CON_USART == 0
// Allow deep sleep. Doesn't work well with uart console currently.
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
#endif
#if PORTCFG_CONOUT_ITM == 1
#ifdef _DBG
if (DBG_Connected()) {
CMU_ClockEnable(cmuClock_GPIO, true);
DBG_SWOEnable(0);
/* Enable trace in core debug, taken from Energy Aware Commander */
CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk;
ITM->LAR = 0xC5ACCE55;
ITM->TER = 0x0;
ITM->TCR = 0x0;
TPI->SPPR = 2;
TPI->ACPR = 0xf;
ITM->TPR = 0x0;
DWT->CTRL = 0x400003FE;
ITM->TCR = 0x0001000D;
TPI->FFCR = 0x00000100;
ITM->TER = 0x1;
}
#endif
#endif
#if PORTCFG_CON_USART == 1
// Configure usart pins.
CMU_ClockEnable(cmuClock_GPIO, true);
GPIO_PinModeSet(gpioPortC, 0, gpioModePushPull, 1);
GPIO_PinModeSet(gpioPortC, 1, gpioModeInput, 0);
#endif
testStart();
return 0;
}
/**************************************************************************//**
* @brief Update LCD with temperature
* @param[in] temp Temperature to display.
*****************************************************************************/
void temperatureUpdateLCD(TEMPSENS_Temp_TypeDef *temp)
{
char text[8];
TEMPSENS_Temp_TypeDef dtemp;
/* Work with local copy in case conversion to Fahrenheit is required */
dtemp = *temp;
/* Show Gecko if debugger is attached. Energy modes do not behave as */
/* expected when using the debugger. */
if (DBG_Connected())
{
SegmentLCD_Symbol(LCD_SYMBOL_GECKO, 1);
}
else
{
SegmentLCD_Symbol(LCD_SYMBOL_GECKO, 0);
}
memset(text, ' ', sizeof(text) - 1);
text[sizeof(text) - 1] = 0;
if (showFahrenheit)
{
text[5] = 'F';
TEMPSENS_Celsius2Fahrenheit(&dtemp);
}
else
{
text[5] = 'C';
}
/* Round temperature to nearest 0.5 */
if (dtemp.f >= 0)
{
dtemp.i += (dtemp.f + 2500) / 10000;
dtemp.f = (((dtemp.f + 2500) % 10000) / 5000) * 5000;
}
else
{
dtemp.i += (dtemp.f - 2500) / 10000;
dtemp.f = (((dtemp.f - 2500) % 10000) / 5000) * 5000;
}
/* 100s */
if (abs(dtemp.i) >= 100)
text[0] = '0' + (abs(dtemp.i) / 100);
/* 10s */
if (abs(dtemp.i) >= 10)
text[1] = '0' + ((abs(dtemp.i) % 100) / 10);
/* 1s */
text[2] = '0' + (abs(dtemp.i) % 10);
/* 0.1s */
text[3] = '0' + (abs(dtemp.f) / 1000);
SegmentLCD_Write(text);
SegmentLCD_Symbol(LCD_SYMBOL_DP4, 1);
if ((dtemp.i < 0) || (dtemp.f < 0))
{
SegmentLCD_Symbol(LCD_SYMBOL_MINUS, 1);
}
else
{
SegmentLCD_Symbol(LCD_SYMBOL_MINUS, 0);
}
}
