/* Initializes pin muxing for I2C interface - note that SystemInit() may
already setup your pin muxing at system startup */
static void Init_I2C_PinMux(void)
{
#if defined(BOARD_NXP_LPCXPRESSO_1549)
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 22, IOCON_DIGMODE_EN | I2C_MODE);
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 23, IOCON_DIGMODE_EN | I2C_MODE);
Chip_SWM_EnableFixedPin(SWM_FIXED_I2C0_SCL);
Chip_SWM_EnableFixedPin(SWM_FIXED_I2C0_SDA);
#else
/* Configure your own I2C pin muxing here if needed */
#error "No I2C Pin Muxing defined for this example"
#endif
}
/**
* Configure the pinmuxing for the MultiSensor board.
*
* only the special functions are set here, default the pins are gpio.
*/
void PINMUX_Init()
{
/* Enable the clock to the Switch Matrix */
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_SWM);
/* DISconnect the XTALIN and XTALOUT signals to port pins(P0.8, P0.9), as these will be used for gpio purposes */
/* these are fixed location pins */
Chip_SWM_FixedPinEnable(SWM_FIXED_XTALIN, false);
Chip_SWM_FixedPinEnable(SWM_FIXED_XTALOUT, false);
/* connect the fixed reset_n pin to P0.5 */
Chip_SWM_EnableFixedPin(SWM_FIXED_RST);
/* Connect the I2C_SDA0 and I2C_SCL0 signals to port pins(P0.10, P0.11) */
/* these are fixed location pins */
Chip_SWM_EnableFixedPin(SWM_FIXED_I2C0_SDA);
Chip_SWM_EnableFixedPin(SWM_FIXED_I2C0_SCL);
/* Connect the ADC0 (P0.7) and ADC1 (P0.6) */
/* these are fixed location pins */
Chip_SWM_EnableFixedPin(SWM_FIXED_ADC0);
Chip_SWM_EnableFixedPin(SWM_FIXED_ADC1);
/* Connect the USART0 TX & RX signals to port pins(P0.16, P0.26) */
/* these are movable location pins */
Chip_SWM_MovablePinAssign(SWM_U0_TXD_O, 16);
Chip_SWM_MovablePinAssign(SWM_U0_RXD_I, 26);
/* Connect the USART1 RX signal to port pins(P0.25) */
/* these are movable location pins */
Chip_SWM_MovablePinAssign(SWM_U1_RXD_I, 25);
/* Connect the SCT OUTPUT 1,2,3 (PWM : RGB) signal to port pin(P0.1, P0.9, P0.8) --> this is the RGB led*/
/* these are movable location pins */
Chip_SWM_MovablePinAssign(SWM_SCT_OUT1_O, 1);
Chip_SWM_MovablePinAssign(SWM_SCT_OUT2_O, 9);
Chip_SWM_MovablePinAssign(SWM_SCT_OUT3_O, 8);
/* make sure to disable fixed pin functionality for HUMIDITY dht22 data pin */
Chip_SWM_DisableFixedPin(SWM_FIXED_ADC10);
//Chip_SWM_MovablePinAssign(SWM_SCT_IN1_I, 13);
/* Disable the clock to the Switch Matrix to save power */
Chip_Clock_DisablePeriphClock(SYSCTL_CLOCK_SWM);
}
/* ACMP Pin mux function - note that SystemInit() may already setup your
pin muxing at system startup */
static void Init_ACMP_PinMux(void)
{
#if defined(BOARD_NXP_LPCXPRESSO_1549)
/* Disables pullups/pulldowns and disable digital mode */
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 9, (IOCON_MODE_INACT | IOCON_ADMODE_EN));
/* Assign ADC1_1 to PIO0_9 via SWM (fixed pin) */
Chip_SWM_EnableFixedPin(SWM_FIXED_ADC1_1);
#else
/* Configure your own ACMP pin muxing here if needed */
#warning "No ACMP pin muxing defined"
#endif
}
TempSensDig::TempSensDig(int deviceNumber, uint32_t speed) {
if(deviceNumber == 0) {
device = LPC_I2C0;
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 22, IOCON_DIGMODE_EN | I2C_MODE);
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 23, IOCON_DIGMODE_EN | I2C_MODE);
Chip_SWM_EnableFixedPin(SWM_FIXED_I2C0_SCL);
Chip_SWM_EnableFixedPin(SWM_FIXED_I2C0_SDA);
}
else {
// currently we support only I2C number 0
}
/* Enable I2C clock and reset I2C peripheral - the boot ROM does not
do this */
Chip_I2C_Init(device);
/* Setup clock rate for I2C */
Chip_I2C_SetClockDiv(device, I2C_CLK_DIVIDER);
/* Setup I2CM transfer rate */
Chip_I2CM_SetBusSpeed(device, speed);
/* Enable Master Mode */
Chip_I2CM_Enable(device);
}
/**
* @brief main routine for ADC example
* @return Function should not exit
*/
int main(void)
{
SystemCoreClockUpdate();
Board_Init();
DEBUGSTR("ADC ROM sequencer demo\r\n");
/* Power up, enable clock and reset ADC0 */
Chip_SYSCTL_PowerUp(SYSCTL_POWERDOWN_ADC0_PD);
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_ADC0);
Chip_SYSCTL_PeriphReset(RESET_ADC0);
/* Power up, enable clock and reset ADC1 */
Chip_SYSCTL_PowerUp(SYSCTL_POWERDOWN_ADC1_PD);
Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_ADC1);
Chip_SYSCTL_PeriphReset(RESET_ADC1);
/* Power up the internal temperature sensor */
Chip_SYSCTL_PowerUp(SYSCTL_POWERDOWN_TS_PD);
#if defined(BOARD_NXP_LPCXPRESSO_1549)
/* Disables pullups/pulldowns and disable digital mode */
Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 9, (IOCON_MODE_INACT | IOCON_ADMODE_EN));
/* Assign ADC1_1 to PIO0_9 via SWM (fixed pin) */
Chip_SWM_EnableFixedPin(SWM_FIXED_ADC1_1);
#else
#warning "No ADC setup for this example"
#endif
/* Initialize ROM API base address for ADC */
pAdcApi = LPC_ADCD_API;
size_in_bytes = pAdcApi->adc_get_mem_size();
if (size_in_bytes / 4 > RAMBLOCK_H) {
/* Adjust RAMBLOCK size in this case */
return 1;
}
/* ADC Handle Setup*/
adc_handle[0] = pAdcApi->adc_setup(LPC_ADC0_BASE, (uint8_t *) start_of_ram_block[0]);
adc_handle[1] = pAdcApi->adc_setup(LPC_ADC1_BASE, (uint8_t *) start_of_ram_block[1]);
/* ADC0 Config */
adc_cfg[0].system_clock = SystemCoreClock; /* System clock */
adc_cfg[0].adc_clock = 500000; /* ADC clock set to 500KHz for calibration*/
/* ADC1 Config */
adc_cfg[1].system_clock = SystemCoreClock; /* System clock */
adc_cfg[1].adc_clock = 500000; /* ADC clock set to 500KHz for calibration*/
pAdcApi->adc_calibration(adc_handle[0], &adc_cfg[0]);
pAdcApi->adc_calibration(adc_handle[1], &adc_cfg[1]);
/* ADC0 Config for Init */
adc_cfg[0].system_clock = SystemCoreClock; /* System clock */
adc_cfg[0].adc_clock = ADC_CLOCK_RATE; /* ADC clock */
adc_cfg[0].async_mode = 0; /* Synchronous mode */
adc_cfg[0].tenbit_mode = 0; /* 12 Bit ADC mode */
adc_cfg[0].lpwr_mode = 0; /* Disable low power mode */
adc_cfg[0].input_sel = ADC_INSEL_TS;
adc_cfg[0].seqa_ctrl = (ADC_SEQ_CTRL_CHANSEL(0) | ADC_SEQ_CTRL_MODE_EOS);
adc_cfg[0].channel_num = 1; /* Channel number is one higher than the maximum channel number used */
/* ADC1 Config for Init */
adc_cfg[1].system_clock = SystemCoreClock; /* System clock */
adc_cfg[1].adc_clock = ADC_CLOCK_RATE; /* ADC clock */
adc_cfg[1].async_mode = 0; /* Synchronous mode */
adc_cfg[1].tenbit_mode = 0; /* 12 Bit ADC mode */
adc_cfg[1].lpwr_mode = 0; /* Disable low power mode */
adc_cfg[1].seqa_ctrl = (ADC_SEQ_CTRL_CHANSEL(BOARD_ADC_CH) | ADC_SEQ_CTRL_MODE_EOS);
adc_cfg[1].thrsel = 0;
adc_cfg[1].thr0_low = ((1 * 0xFFF) / 4) << 4;
adc_cfg[1].thr0_high = ((3 * 0xFFF) / 4) << 4;
adc_cfg[1].thcmp_en = ADC_INTEN_CMP_ENABLE(ADC_INTEN_CMP_CROSSTH, BOARD_ADC_CH);
adc_cfg[1].channel_num = BOARD_ADC_CH + 1; /* Channel number is one higher than the maximum channel number used */
pAdcApi->adc_init(adc_handle[0], &adc_cfg[0]);
pAdcApi->adc_init(adc_handle[1], &adc_cfg[1]);
/* When using ADC ROM API's lower the priority of ADC Sequence completion interrupt when compared to the threshold interrupt*/
NVIC_SetPriority(ADC1_SEQA_IRQn, 1);
/* Enable related ADC NVIC interrupts */
NVIC_EnableIRQ(ADC0_SEQA_IRQn);
NVIC_EnableIRQ(ADC1_SEQA_IRQn);
NVIC_EnableIRQ(ADC1_THCMP);
/* This example uses the periodic sysTick to manually trigger the ADC,
but a periodic timer can be used in a match configuration to start
an ADC sequence without software intervention. */
SysTick_Config(Chip_Clock_GetSysTickClockRate() / TICKRATE_HZ);
/* Endless loop */
while (1) {
/* Sleep until something happens */
__WFI();
if (threshold1Crossed) {
threshold1Crossed = false;
DEBUGSTR("********ADC1 threshold event********\r\n");
}
/* Is a conversion sequence complete? */
if (sequence0Complete) {
sequence0Complete = false;
showValudeADC(LPC_ADC0);
}
if (sequence1Complete) {
sequence1Complete = false;
showValudeADC(LPC_ADC1);
}
}
/* Should not run to here */
return 0;
}
