/*! \brief Detect Board Revision
*
* @retval Version Number of Board
*/
uint8_t BOARD_Detect_Revision(void)
{
ADC_Result result;
uint16_t revision_value;
uint8_t i;
PGA_SetChannel(SPI_DEVICE_AMP_V_I_DCBUS, CHANNEL1);
ADC_Enable(TSB_ADB);
ADC_SetClk(TSB_ADB, ADC_HOLD_FIX, ADC_FC_DIVIDE_LEVEL_2);
ADC_SetSWTrg(TSB_ADB, ADC_REG2, TRG_ENABLE(ADC_REG2));
ADC_Start(TSB_ADB, ADC_TRG_SW);
while (ADC_GetConvertState(TSB_ADB, ADC_TRG_SW) == BUSY);
result=ADC_GetConvertResult(TSB_ADB, ADC_REG2);
ADC_Disable(TSB_ADB);
PGA_SetChannel(SPI_DEVICE_AMP_V_I_DCBUS, CHANNEL0);
for (i=0;i<sizeof(revisions)/sizeof(revisions[0]);i++)
{
revision_value = result.Bit.ADResult*10/gaintable[ChannelValues[1].gain_current_measure];
if (abs((revisions[i][0]-revision_value)<100))
break;
}
return revisions[i][1];
}
uint16_t analogin_read_u16(analogin_t *obj)
{
ADC_TypeDef *adc = obj->adc;
uint16_t sample = 0;
//Make sure a single conversion is not in progress
adc->CMD = ADC_CMD_SINGLESTOP;
// Make sure we are checking the correct channel
#if defined _ADC_SINGLECTRL_INPUTSEL_MASK
adc->SINGLECTRL = (adc->SINGLECTRL & ~_ADC_SINGLECTRL_INPUTSEL_MASK) | obj->channel;
#elif _ADC_SINGLECTRL_POSSEL_MASK
adc->SINGLECTRL = (adc->SINGLECTRL & ~_ADC_SINGLECTRL_POSSEL_MASK) | obj->channel << _ADC_SINGLECTRL_POSSEL_SHIFT;
#endif
ADC_Start(adc, adcStartSingle);
/* Wait while conversion is active */
while (adc->STATUS & ADC_STATUS_SINGLEACT);
/* Get ADC result */
sample = ADC_DataSingleGet(adc);
/* The ADC has 12 bit resolution. We shift in 4 0s */
/* from the right to make it a 16 bit number as expected */
return sample << 4;
}
void center()
{
for(m = 0; m < 8; m++)
{
ADC_Start(m);
ADC_Get( &ad[m] );
ad_data[m] = ad[m];
}
X_l = abs(abs(ad_data[0]-ad_data[1]) - abs(ad_data[2]-ad_data[3]));
Y_l = abs(abs(ad_data[0]-ad_data[2]) - abs(ad_data[1]-ad_data[3]));
X_r = abs(abs(ad_data[4]-ad_data[5]) - abs(ad_data[6]-ad_data[7]));
Y_r = abs(abs(ad_data[4]-ad_data[6]) - abs(ad_data[5]-ad_data[7]));
if(X_l>X_r)
{
center_x = ((float)(X_l-X_r))/2;
center_y = ((float)(Y_l-Y_r))/2;
}
if(X_l<X_r)
{
center_x = ((float)(X_r-X_l))/2;
center_y = ((float)(Y_r-Y_l))/2;
}
usart1_transmit(100);
usart1_transmit(center_x);
}
void Mode_Error_Handler(void)
{
Base_Peripheral_Init();
LED1_ON;
LED2_ON;
Delay(LED_BLINK_DELAY);
if(logic.send_error_packet_sec >= LOGIC_SEND_EROR_PACKET_SEC)
{
ADC_Peripheral_Init();
Delay(1);
ADC_Start(ADC_TYPE_TERMISTOR);
LPM3_GOTO;
RTC_Remove_Alarm();
RF_GPIO_Init();
RF_Init();
RF_Send_Packet();
logic.send_error_packet_sec = 0;
}else
logic.send_error_packet_sec ++;
LED1_OFF;
LED2_OFF;
Peripheral_Power_Down();
}
/*******************************************************************************
Function Name : Clear_All
Description : clear all data
*******************************************************************************/
void Clear_All_Data(void) {
Display_Info("Clear_All_Data", 0);
stop = FALSE; // stop / start sampling
Acq_Clear_All();
Disp_Clear_All();
ADC_Start();
}
/***********************************Main***********************************/
int main()
{
int16 mav_data;
ADC_ISR_StartEx(ADC_interrupt);
CyGlobalIntEnable;
UART_Start(); /* Initialize ADC */
ADC_Start(); /* Initialize ADC */
ADC_StartConvert(); /* Start ADC conversions */
ADC_IRQ_Enable(); /* Enable ADC interrupts */
for (;;)
{
if(data_ready)
{
mav_data = mavg_filter(accgroen);
gradergroen = grader(mav_data);
//UART_UartPutChar(mav_data);
//UART_UartPutChar(mav_data>>8);
UART_UartPutChar(gradergroen);
UART_UartPutChar(gradergroen>>8);
data_ready = FALSE;
}
}
}
/*******************************************************************************
Signal_Process: 计算处理数据缓冲区
*******************************************************************************/
void Signal_Process(void)
{
int i, p, q; int Vs, Vr;
if(Sync==3) t0=150; //若同步不成功，设定默认起始位置
p=(Frame*(1024*X_SIZE)/Ks[Item_Index[X_SENSITIVITY]])+t0+Item_Index[X_POSITION]-(4096+150);
for(i=X_Counter; i<(X_SIZE); ++i){
Sync=5; //部分转换完成后转去显示扫描波形
q=p+(i*1024)/Ks[Item_Index[X_SENSITIVITY]];
if(q<0) {
q=0;
Item_Index[X_POSITION]++;
}
if(q>=(0x1000-DMA_CNDTR1)) break; //跳空一个周期，等待A/D转换结束
X_Counter=i+1;
Vr=Km[Item_Index[Y_SENSITIVITY]]*(Scan_Buffer[q+1]-Scan_Buffer[q])/4096;
Vs=(Km[Item_Index[Y_SENSITIVITY]]*(2048-Scan_Buffer[q]))/4096+120 //当前波形点的主值
-(((i*1024)%Ks[Item_Index[X_SENSITIVITY]])*Vr)/Ks[Item_Index[X_SENSITIVITY]]; //当前波形点的插值
if(Vs>MAX_Y) Vs=MAX_Y;
else if(Vs<MIN_Y) Vs=MIN_Y;
Signal_Buffer[i]=Vs;
Sync=4; //全部转换完成后转去显示扫描波形
}
if(DMA_CNDTR1==0) {
Measure_Wave();//若采样完成，计算波形的各个测量值
if(Item_Index[RUNNING_STATUS]==RUN) ADC_Start(); //若在"RUN"模式下，重新采样
}
}
// 12-bit ADC resolution
uint16_t read_ADC(ADC_CH ch)
{
ADC_ChannelSelect(ch); ///< Select ADC channel to CH0
ADC_Start(); ///< Start ADC
while(ADC_IsEOC()); ///< Wait until End of Conversion
return ((uint16_t)ADC_ReadData()); ///< read ADC Data
}
void Example_ADC_ReadData(void)
{
/* 1. set ADC clock */
ADC_SetClk(TSB_ADB, ADC_HOLD_FIX, ADC_FC_DIVIDE_LEVEL_2);
/* 2. select trigger and AD channel, this time we use sofeware trigger, */
/* the VR1 is connected to ADC unit B channel 2, remember to input with macro TRG_ENABLE() */
ADC_SetSWTrg(TSB_ADB, ADC_REG0, TRG_ENABLE(ADC_AIN2));
/* 3. enable ADC module */
ADC_Enable(TSB_ADB);
/* 4. now start ADC */
ADC_Start(TSB_ADB, ADC_TRG_SW);
/* initialize LEDs on M374-SK board before display something */
LED_Init();
while (1U) {
/* check ADC module state */
adcState = ADC_GetConvertState(TSB_ADB, ADC_TRG_SW);
if (adcState == DONE) {
/* read ADC result when it is finished */
result = ADC_GetConvertResult(TSB_ADB, ADC_REG0);
/* get the real ADC result without other information */
/* "/16" is to limit the range of AD value */
myResult = result.Bit.ADResult / 16U;
/* software trigger, need to trigger it again */
ADC_Start(TSB_ADB, ADC_TRG_SW);
}
myDelay(myResult);
if(idx)
{
LED_Off(LEDs[idx-1]);
}
idx &= 0x03U;
myDelay(myResult);
LED_On(LEDs[idx]);
idx++;
}
}
int main()
{
//Initializations
clearPacketSBD();
clearPacketwind();
UART_Wind_Start();
UART_SBD_Start();
psoc_Start();
isr_Wind_StartEx(IntWind);
SBD_reply_StartEx(SBD_int);
clock_Start();
master_Start();
ADC_Start();
CyGlobalIntEnable;
//Writes to magnetometer to be read from (not calibration mode)
writeregister((uint8) 0x00, (uint8) 0x70);
writeregister((uint8) 0x01, (uint8) 0xA0);
writeregister((uint8) 0x02, (uint8) 0x00);
CyDelay(15000u);
clearPacketwind();
//Query Sensor for wind, pressure, temperature and humidity data
UART_Wind_PutString("0R\r\n");
timeout_isr_StartEx(windtimer);
timer_clock_Start();
Timer_Start();
windtime = 0;
for(;;)
{
//When the packet is received takes other sensor data, sends packet and turns off power
if(windpacketReceived){
Timer_Stop();
timer_clock_Stop();
timeout_isr_Stop();
windprocessPacket();
}
//Here to clear any unexpected outputs from SBD Warrior
if(SBDpacketReceived)
{
clearPacketSBD();
}
//changes
if(windtimeout == 1)
{
windbroke = 1;
windprocessPacket();
}
//end changes
}
}
void init()
{
// LCD Init
LCD_Start();
LCD_DisplayOn();
//LCD_PrintNumber(1);
ADC_Start();
}
void main()
{
ISR_UpBuff_Start(); //Start the Interrupt Component.
ISR_UpBuff_SetVector(BufferUpdate);//Set Vector to the above ISR.
CyGlobalIntEnable;//Enable Global Interrupts,EzI2C ad ADC require them.
EZI2C_Start();//Start the EzI2C component.
EZI2C_SetBuffer1(BUFFER_SIZE,BUFFER_RW_AREA_SIZE,(void *) (&EZI2C_Buffer));//Configure the Buffer for the EzI2C Component.
ADC_Start();//Start the ADC
ADC_IRQ_Enable();//Enable the EOC Interrupt
ADC_StartConvert();//Start the Conversion
for(;;);//Everything is done in the ISR.
}
/*
* Function Name: ADC_setup
* Description: Configures ADC0
*/
void LEUART_Setup(void)
{
/* Enabling the required clocks */
CMU_ClockEnable(cmuClock_LFB, true); //Enable the clock input to LETIMER
CMU_ClockSelectSet(cmuClock_LFB, cmuSelect_LFXO); //Selecting the ULFRCO as the source clock
CMU_ClockEnable(cmuClock_LEUART0, true); //Enable the clock input to LETIMER
/* Defining the LEUART1 initialization data */
LEUART_Init_TypeDef leuart0Init =
{
.enable = leuartEnable, // Activate data reception on LEUn_TX pin.
.refFreq = 0, // Inherit the clock frequency from the LEUART clock source
.baudrate = LEUART0_BAUD, // Baudrate = 9600 bps
.databits = LEUART0_Databits, // Each LEUART frame contains 8 databits
.parity = LEUART0_Parity, // No parity bits in use
.stopbits = LEUART0_Stopbits, // Setting the number of stop bits in a frame to 2 bitperiods
};
LEUART_Init(LEUART0, &leuart0Init);
// Route LEUART1 TX,RX pin to DMA location 0
LEUART0->ROUTE = LEUART_ROUTE_TXPEN | LEUART_ROUTE_RXPEN | LEUART_ROUTE_LOCATION_LOC0;
// Enable GPIO for LEUART1. TX is on D4
GPIO_PinModeSet(gpioPortD, 4, gpioModePushPull, 0);
// Enable GPIO for LEUART1. RX is on D5
GPIO_PinModeSet(gpioPortD, 5, gpioModeInputPull, 0);
// Pull PD15(CTS pin of BLE module) to GRND
GPIO_PinModeSet(gpioPortD, 15, gpioModePushPull, 0);
}
/*
*Function name: LETIMER0_IRQHandler
*Description : Interrupt Service Routine for LETIMER.
*/
void LETIMER0_IRQHandler(void)
{
LETIMER_IntClear(LETIMER0, LETIMER_IF_UF); //Clear LETIMER0 underflow (UF) and COMP1 flag.
DMA_ActivateBasic(DMA_CHANNEL_ADC, true, false, (void *)ADC_Buffer, (void *)&(ADC0->SINGLEDATA), ADC_SAMPLES - 1);
ADC_Setup();
// ADC start
ADC_Start(ADC0, adcStartSingle);
unblockSleepMode(EM2);
blockSleepMode(EM1);
trfComplete=false;
}
void main()
{
/* Place your initialization/startup code here (e.g. MyInst_Start()) */
uint16 adc, compare;
LCD_Start();
ADC_Start();
PWM_Start();
/* CyGlobalIntEnable; */ /* Uncomment this line to enable global interrupts. */
for(;;)
{
/* Place your application code here. */
// LCD_ClearDisplay();
LCD_Start();
adc = 0;
ADC_StartConvert();
ADC_IsEndConversion(ADC_WAIT_FOR_RESULT);
ADC_StopConvert();
adc = ADC_GetResult16();
if(adc > 255)
{
if(adc == 0xFFFF) /* underflow correction */
{
adc = 0x00;
}
else
adc = 0xFF; /* Overflow correction */
}
LCD_Position(0,0);
LCD_PrintHexUint8(adc);
compare = (uint16)(1000 + ((float)((float)((float)adc / (float)255) * (float)1000)));
LCD_Position(1,0);
LCD_PrintDecUint16(compare);
PWM_WriteCompare(compare);
PWM_WritePeriod(compare + 39999);
}
}
void Do_Keys_Rate (keycodes key){
s16 tmp, step;
s16 cursor;
Display_Info("Do_Keys_Rate", 0);
cursor = confp->rate_cursor;
switch (key){
case KEYCODE_PLAY:
stop = !stop;
if(stop)
ADC_Stop();
else
ADC_Start();
break;
case KEYCODE_M:
confp->rtn_mode = confp->mode;
confp->mode = MENU;
Display_Menu(confp->menu_index);
break;
case KEYCODE_UP: // no zoom in rate mode
break;
case KEYCODE_DOWN: // no zoom in rate mode
break;
case KEYCODE_RIGHT:
step = 2;
cursor += step;
if(cursor >= confp->graph_width){ // stop on far right side
cursor = confp->graph_width - 1;
}
Display_Rate();
break;
case KEYCODE_LEFT:
step = 2;
cursor -= step;
if(cursor < 0){ // stop on far right side
cursor = 0;
}
Display_Rate();
break;
}
confp->rate_cursor = cursor;
}
/***************************************************************************//**
* @brief RTC Interrupt Handler.
******************************************************************************/
void RTC_IRQHandler(void)
{
/* Start ADC conversion as soon as we wake up. */
ADC_Start(ADC0, adcStartSingle);
/* Clear the interrupt flag */
RTC_IntClear(RTC_IF_COMP0);
/* Wait while conversion is active */
while (ADC0->STATUS & ADC_STATUS_SINGLEACT);
/* Get ADC result */
sampleBuffer[sampleCount++] = ADC_DataSingleGet(ADC0);
if(sampleCount >= N_SAMPLES){
adcFinished = 1;
RTC_Enable(false);
RTC_IntDisable(_RTC_IF_MASK);
}
}
/*******************************************************************************
Erase_Draw: 先擦除后显示扫描波形
*******************************************************************************/
void Erase_Draw(void)
{
unsigned short i;
unsigned char y1, y2, y3, y4,y5, y6;
y1=View_Buffer[0];
y3=Signal_Buffer[0];
y5=Ref_Buffer[0];
for(i=0; i<X_Counter; ++i){
y2=View_Buffer[i];
y4=Signal_Buffer[i];
View_Buffer[i]=y4;
y6=Ref_Buffer[i];
Erase_SEG(i,y1,y2,CH1_COLOR);
Erase_SEG(i,y5,y6,CH3_COLOR);
Draw_CH1_SEG(i,y3,y4);
if(Hide_Index[REF]==0) Draw_CH3_SEG(i,y5,y6);
y1 = y2;
y3 = y4;
y5 = y6;
}
if(X_Counter>=X_SIZE-1) {//一帧显示完成
Stop=1;
X_Counter=0; //窗口指针复零
Battery_Detect();//检测电池电压
if((((Frame+2)*X_SIZE)+t0+Item_Index[X_POSITION]-4096)<0x1000) Frame++;//指向下一帧
else {
Frame=0;
ADC_Start();
Item_Index[X_POSITION]=4096;
}
Delay_Counter=100; //维持波形显示100mS
if(Item_Index[0]!=4) Sync=0;//非"SCAN"模式下，重新开始处理显示波形
else Erase_Wave();//在"SCAN"模式下，擦除已经显示的波形，准备下一帧的显示
} else {
Sync=2;
Stop=0;//扫描数据显示未完成，则继续对应帧的数据转换处理和显示
}
}
void zmp()
{
for(m = 0; m < 8; m++)
{
ADC_Start(m);
ADC_Get( &ad[m] );
ad_data[m] = ad[m];
}
for(gg=0;gg<8;gg++)
{
numerator=ad_data[gg]*lenx[gg];
count_numerator = count_numerator+numerator;
}
for(gg=0;gg<8;gg++)
{
denominator=ad_data[gg];
count_denominator = count_denominator+denominator;
}
zmpx = count_numerator/count_denominator;
for(gg=0;gg<8;gg++)
{
numerator_1=ad_data[gg]*leny[gg];
count_numerator_1 = count_numerator_1+numerator_1;
}
for(gg=0;gg<8;gg++)
{
denominator_1=ad_data[gg];
count_denominator_1 = count_denominator_1+denominator_1;
}
zmpy = count_numerator_1/count_denominator_1;
unsigned_dec(zmpx);
unsigned_dec(zmpy);
usart1_transmit(0x0d);
usart1_transmit(0x0a);
}
int main()
{
BootIRQ_Start();
CyGlobalIntEnable; /* Enable global interrupts. */
for(uint8 i=0; i<5;i++){
LED_Write(1u);
CyDelay(10u);
LED_Write(0u);
CyDelay(100u);
}
usb_init();
xprintf("Start");
ADC_Start();
EEPROM_Start();
status_register.matrix_output = 0;
status_register.emergency_stop = 0;
for(;;)
{
/* Host can send double SET_INTERFACE request. */
// if (0u != USB_IsConfigurationChanged())
// {
/* Initialize IN endpoints when device is configured. */
// if (0u != USB_GetConfiguration())
// {
/* Enumeration is done, enable OUT endpoint to receive data
* from host. */
// USB_EnableOutEP(8);
// xprintf("Reconfigured");
// }
// }
if (message_for_you_in_the_lobby)
{
process_msg();
}
scan();
}
}
/***************************************************************************//**
* @brief
* Initialize touch panel driver
*
* @param config
* Driver configuration data.
******************************************************************************/
void TOUCH_Init(TOUCH_Config_TypeDef *config)
{
ADC_Init_TypeDef init = ADC_INIT_DEFAULT;
#ifndef TOUCH_WITHOUT_STORE
touch_LoadCalibration();
#endif
CMU_ClockEnable(cmuClock_ADC0, true);
ADC_IntDisable(ADC0, _ADC_IF_MASK);
init.prescale = ADC_PrescaleCalc(config->frequency, 0);
touch_ignore_move = config->ignore;
init.ovsRateSel = config->oversampling;
ADC_Init(ADC0, &init);
BSP_PeripheralAccess(BSP_TOUCH, true);
sInit.input = ADC_Y;
sInit.reference = adcRefVDD;
sInit.resolution = adcResOVS;
ADC_InitSingle(ADC0, &sInit);
ADC_IntClear(ADC0, _ADC_IF_MASK);
touch_state = TOUCH_INIT;
NVIC_ClearPendingIRQ(ADC0_IRQn);
NVIC_EnableIRQ(ADC0_IRQn);
ADC_IntEnable(ADC0, ADC_IF_SINGLE);
ADC_Start(ADC0, adcStartSingle);
}
uint16_t adc_get_value(uint8_t u8_adc_channel, ADC_Ref_TypeDef adcref)
{
ADC_InitSingle_TypeDef sInit = ADC_INITSINGLE_DEFAULT;
uint32_t rawvalue = 0;
/* Set reference */
sInit.reference = adcref;
sInit.input = u8_adc_channel;
ADC_InitSingle(ADC0, &sInit);
_u8_conv_complete = 0;
ADC_Start(ADC0, adcStartSingle);
/* Wait in EM1 for ADC to complete */
EMU_EnterEM1();
// Make sure it's ADC interrupt
// TODO : timeout
while(_u8_conv_complete == 0);
rawvalue = ADC_DataSingleGet(ADC0);
return (uint16_t) rawvalue;
}
/*---------------------------------------------------------------------------*/
void Potentiometer_Init(void)
{
ADC_Start();
ADC_EnableChannel(POTENTIOMETER_CHANNEL);
}
void Scan_Samples(void){
fixed ybox[7]; // array box car derivative
s16 bin; // index into peak height array
fixed dt, tau, *yp0, *yp1, y, y_i;
fixed threshold; // trigger level for leading edge
fixed deriv;
fixed alpha, beta, gamma, peak;
s16 i;
configurations *cp = &configuration;
ADC_Stop();
tail = head = Get_Scan_Pos(); // get current absolute position in adc buffer
/*
if(cp->sig_filter){
// Set up Butterworth low pass filter
dt = FIXED_HALF; // sample time 0.5 uS
tau = fixed_from_int(cp->sig_filter); // filter time in uS
alpha = fixed_div(dt, tau + dt);
}
*/
ADC_Start();
while(TRUE){
if(tail == head){
head = Get_Scan_Pos();
// recalculate filter elements in case changed
/*
if(cp->sig_filter){
// Set up Butterworth low pass filter in case of changes
dt = FIXED_HALF; // sample time 0.5 uS
tau = fixed_from_int(cp->sig_filter); // filter time in uS
alpha = fixed_div(dt, tau + dt);
}
*/
}
if(tail == head)
continue;
// track live time
if(samp_cntr++ >= SAMP_PER_MS){
live_time++;
samp_cntr = 0;
}
// get new value, adjust for zero and inversion at same time
y = fixed_from_int(zero - scan_buffer[tail++]);
if(tail >= SCAN_BUFFER_SZ){
tail = 0;
}
// filter signal if needed
/*
if(cp->sig_filter){
// Butterworth low pass filter
y = *yp0 + fixed_mul(alpha, (y - *yp0));
}
*/
// shift the boxcar window and find derivative
yp0 =&ybox[0];
yp1 = &ybox[1];
for(i = 6; i > 0; i--){ // last box slot gets new y value
*yp0++ = *yp1++;
}
*yp0 = y; // place latest sample in end of boxcar
// compute the derivative
deriv = 0;
yp0 =&ybox[0];
deriv -= *yp0++;
deriv -= *yp0++;
alpha = *yp0;
deriv -= *yp0++;
beta = *yp0++;
gamma = *yp0;
deriv += *yp0++;
deriv += *yp0++;
deriv += *yp0++;
// process depending on state
switch(scan_state){
case RESTART:
scan_state = LEADING;
//cp->scope_valid = FALSE;
break;
case LEADING:
if(cp->sig_type == PULSE_POS && deriv > cp->sig_dvdt_lim){
scan_state = PEAK;
break;
}
if(cp->sig_type == PULSE_NEG && deriv < cp->sig_dvdt_lim){
scan_state = PEAK;
break;
}
// if no pulse then check the zero
avg_zero = (avg_zero * 20 + y)/21;
break;
case PEAK:
// reverse derivative indicates peak
if(cp->sig_type == PULSE_POS && deriv < 0){
scan_state = TAIL;
}
if(cp->sig_type == PULSE_NEG && deriv > 0){
scan_state = TAIL;
}
if(scan_state == TAIL){
// handle gaussian approximation if enabled
if(cp->sig_gaussian){
// p = ((a - g)/(a -2b + g))/2 = position of peak
peak = (fixed_div((alpha - gamma),(alpha - (2 * beta) + gamma))) / 2;
// y(p) = b - ((a - g) * p)/4 = peak value
peak = beta - (fixed_mul((alpha - gamma), peak) / 4);
} else {
peak = (alpha + beta + gamma) / 3;
}
if(cp->sig_type == PULSE_NEG){
peak = -peak;
}
// peak now always positive
if( peak > cp->sig_lo_lim && peak < cp->sig_hi_lim){
bin = fixed_to_int(peak);
pulse_height[bin]++; // increment count in spectrum array
cur_cnt++;
// handle rate meter beeping
if(cp->rate_beep && !alarm_on){
Beep(BEEP_500Hz, 10);
}
}
}
break;
case TAIL:
// find where curve turns back to baseline
if(cp->sig_type == PULSE_POS && deriv >= 0){
scan_state = LEADING;
}
if(cp->sig_type == PULSE_NEG && deriv <= 0){
scan_state = LEADING;
}
break;
} // switch(scan_state)
} // while ring buffer not empty
}
uint32_t adc_read_single( void )
{
ADC_Start(ADC0, adcStartSingle);
while ( ( ADC0->STATUS & ADC_STATUS_SINGLEDV ) == 0 ){}
return ADC_DataSingleGet(ADC0);
}
/***************************************************************************//**
* @brief
* Calibrate offset and gain for the specified reference.
* Supports currently only single ended gain calibration.
* Could easily be expanded to support differential gain calibration.
*
* @details
* The offset calibration routine measures 0 V with the ADC, and adjust
* the calibration register until the converted value equals 0.
* The gain calibration routine needs an external reference voltage equal
* to the top value for the selected reference. For example if the 2.5 V
* reference is to be calibrated, the external supply must also equal 2.5V.
*
* @param[in] adc
* Pointer to ADC peripheral register block.
*
* @param[in] ref
* Reference used during calibration. Can be both external and internal
* references.
*
* @return
* The final value of the calibration register, note that the calibration
* register gets updated with this value during the calibration.
* No need to load the calibration values after the function returns.
******************************************************************************/
uint32_t ADC_Calibration(ADC_TypeDef *adc, ADC_Ref_TypeDef ref)
{
int32_t sample;
uint32_t cal;
/* Binary search variables */
uint8_t high;
uint8_t mid;
uint8_t low;
/* Reset ADC to be sure we have default settings and wait for ongoing */
/* conversions to be complete. */
ADC_Reset(adc);
ADC_Init_TypeDef init = ADC_INIT_DEFAULT;
ADC_InitSingle_TypeDef singleInit = ADC_INITSINGLE_DEFAULT;
/* Init common settings for both single conversion and scan mode */
init.timebase = ADC_TimebaseCalc(0);
/* Might as well finish conversion as quickly as possibly since polling */
/* for completion. */
/* Set ADC clock to 7 MHz, use default HFPERCLK */
init.prescale = ADC_PrescaleCalc(7000000, 0);
/* Set an oversampling rate for more accuracy */
init.ovsRateSel = adcOvsRateSel4096;
/* Leave other settings at default values */
ADC_Init(adc, &init);
/* Init for single conversion use, measure diff 0 with selected reference. */
singleInit.reference = ref;
singleInit.input = adcSingleInpDiff0;
singleInit.acqTime = adcAcqTime16;
singleInit.diff = true;
/* Enable oversampling rate */
singleInit.resolution = adcResOVS;
ADC_InitSingle(adc, &singleInit);
/* ADC is now set up for offset calibration */
/* Offset calibration register is a 7 bit signed 2's complement value. */
/* Use unsigned indexes for binary search, and convert when calibration */
/* register is written to. */
high = 128;
low = 0;
/* Do binary search for offset calibration*/
while (low < high)
{
/* Calculate midpoint */
mid = low + (high - low) / 2;
/* Midpoint is converted to 2's complement and written to both scan and */
/* single calibration registers */
cal = adc->CAL & ~(_ADC_CAL_SINGLEOFFSET_MASK | _ADC_CAL_SCANOFFSET_MASK);
cal |= (mid - 63) << _ADC_CAL_SINGLEOFFSET_SHIFT;
cal |= (mid - 63) << _ADC_CAL_SCANOFFSET_SHIFT;
adc->CAL = cal;
/* Do a conversion */
ADC_Start(adc, adcStartSingle);
/* Wait while conversion is active */
while (adc->STATUS & ADC_STATUS_SINGLEACT) ;
/* Get ADC result */
sample = ADC_DataSingleGet(adc);
/* Check result and decide in which part of to repeat search */
/* Calibration register has negative effect on result */
if (sample < 0)
{
/* Repeat search in bottom half. */
high = mid;
}
else if (sample > 0)
{
/* Repeat search in top half. */
low = mid + 1;
}
else
{
/* Found it, exit while loop */
break;
}
}
/* Now do gain calibration, only input and diff settings needs to be changed */
adc->SINGLECTRL &= ~(_ADC_SINGLECTRL_INPUTSEL_MASK | _ADC_SINGLECTRL_DIFF_MASK);
adc->SINGLECTRL |= (adcSingleInpCh4 << _ADC_SINGLECTRL_INPUTSEL_SHIFT);
adc->SINGLECTRL |= (false << _ADC_SINGLECTRL_DIFF_SHIFT);
/* ADC is now set up for gain calibration */
/* Gain calibration register is a 7 bit unsigned value. */
high = 128;
low = 0;
/* Do binary search for gain calibration */
while (low < high)
{
/* Calculate midpoint and write to calibration register */
mid = low + (high - low) / 2;
/* Midpoint is converted to 2's complement */
cal = adc->CAL & ~(_ADC_CAL_SINGLEGAIN_MASK | _ADC_CAL_SCANGAIN_MASK);
cal |= mid << _ADC_CAL_SINGLEGAIN_SHIFT;
cal |= mid << _ADC_CAL_SCANGAIN_SHIFT;
adc->CAL = cal;
/* Do a conversion */
ADC_Start(adc, adcStartSingle);
/* Wait while conversion is active */
while (adc->STATUS & ADC_STATUS_SINGLEACT) ;
/* Get ADC result */
sample = ADC_DataSingleGet(adc);
/* Check result and decide in which part to repeat search */
/* Compare with a value atleast one LSB's less than top to avoid overshooting */
/* Since oversampling is used, the result is 16 bits, but a couple of lsb's */
/* applies to the 12 bit result value, if 0xffe is the top value in 12 bit, this */
/* is in turn 0xffe0 in the 16 bit result. */
/* Calibration register has positive effect on result */
if (sample > 0xffd0)
{
/* Repeat search in bottom half. */
high = mid;
}
else if (sample < 0xffd0)
{
/* Repeat search in top half. */
low = mid + 1;
}
else
{
/* Found it, exit while loop */
break;
}
}
return adc->CAL;
}
/**************************************************************************//**
* @brief Main function
*****************************************************************************/
int main(void)
{
SYSTEM_ChipRevision_TypeDef revision;
char string[8];
int i;
uint32_t temp;
/* Chip revision alignment and errata fixes */
CHIP_Init();
/* Initialize DVK board register access */
BSP_Init(BSP_INIT_DEFAULT);
/* If first word of user data page is non-zero, enable eA Profiler trace */
BSP_TraceProfilerSetup();
CMU_ClockEnable(cmuClock_HFPER, true);
CMU_ClockEnable(cmuClock_ADC0, true);
CMU_ClockEnable(cmuClock_GPIO, true);
/* Initialize LCD controller without boost */
SegmentLCD_Init(false);
SegmentLCD_AllOff();
/* Check for revision after revision B. Chips with revision earlier than */
/* Revision C has known problems with the internal temperature sensor. */
/* Display a warning in this case */
SYSTEM_ChipRevisionGet(&revision);
if (revision.minor < 2)
{
SegmentLCD_Write("WARNING");
RTCDRV_Trigger(2000, NULL);
EMU_EnterEM2(true);
SegmentLCD_Write("REV C+");
RTCDRV_Trigger(2000, NULL);
EMU_EnterEM2(true);
SegmentLCD_Write("REQUIRD");
RTCDRV_Trigger(2000, NULL);
EMU_EnterEM2(true);
}
/* Enable board control interrupts */
BSP_InterruptDisable(0xffff);
BSP_InterruptFlagsClear(0xffff);
BSP_InterruptEnable(BC_INTEN_JOYSTICK);
temperatureIRQInit();
/* Setup ADC for sampling internal temperature sensor. */
setupSensor();
/* Main loop - just read temperature and update LCD */
while (1)
{
/* Start one ADC sample */
ADC_Start(ADC0, adcStartSingle);
/* Wait in EM1 for ADC to complete */
EMU_EnterEM1();
/* Read sensor value */
temp = ADC_DataSingleGet(ADC0);
/* Convert ADC sample to Fahrenheit / Celsius and print string to display */
if (showFahrenheit)
{
/* Show Fahrenheit on alphanumeric part of display */
i = (int)(convertToFahrenheit(temp) * 10);
snprintf(string, 8, "%2d,%1d%%F", (i/10), i%10);
/* Show Celsius on numeric part of display */
i = (int)(convertToCelsius(temp) * 10);
SegmentLCD_Number(i*10);
SegmentLCD_Symbol(LCD_SYMBOL_DP10, 1);
}
else
{
/* Show Celsius on alphanumeric part of display */
i = (int)(convertToCelsius(temp) * 10);
snprintf(string, 8, "%2d,%1d%%C", (i/10), i%10);
/* Show Fahrenheit on numeric part of display */
i = (int)(convertToFahrenheit(temp) * 10);
SegmentLCD_Number(i*10);
SegmentLCD_Symbol(LCD_SYMBOL_DP10, 1);
}
SegmentLCD_Write(string);
/* Sleep for 2 seconds in EM 2 */
RTCDRV_Trigger(2000, NULL);
EMU_EnterEM2(true);
}
}
/***************************************************************************//**
* @brief
* Interrupt handler is executed with frequency ~28Hz when panel is not pressed
* and with frequency ~140Hz when panel is pressed - this will give ~50 readings per second
******************************************************************************/
void ADC0_IRQHandler(void)
{
switch (touch_state)
{
case TOUCH_INIT: /* enter this state if touch panel is not pressed */
GPIO_PinModeSet(TOUCH_Y1, gpioModePushPull, 1);
GPIO_PinModeSet(TOUCH_Y2, gpioModePushPull, 1);
GPIO_PinModeSet(TOUCH_X1, gpioModeInputPullFilter , 0);
GPIO_PinModeSet(TOUCH_X2, gpioModeInput, 0);
sInit.input = ADC_Y;
sInit.reference = adcRefVDD;
sInit.resolution = adcResOVS;
sInit.acqTime = adcAcqTime128; /* used to slow down */
if(GPIO_PinInGet(TOUCH_X2))
{
touch_state = TOUCH_MEASURE_Y;
GPIO_PinModeSet(TOUCH_X1, gpioModePushPull, 1);
GPIO_PinModeSet(TOUCH_X2, gpioModePushPull, 0);
GPIO_PinModeSet(TOUCH_Y1, gpioModeInput, 0);
GPIO_PinModeSet(TOUCH_Y2, gpioModeInput, 0);
sInit.input = ADC_X;
sInit.acqTime = adcAcqTime16; /* pressed, so speed-up */
}
ADC_InitSingle(ADC0, &sInit);
break;
case TOUCH_CHECK_PRESS: /* checks if touch panel is still pressed */
if( GPIO_PinInGet(TOUCH_X2) )
{
touch_state = TOUCH_MEASURE_Y;
GPIO_PinModeSet(TOUCH_X1, gpioModePushPull, 1);
GPIO_PinModeSet(TOUCH_X2, gpioModePushPull, 0);
GPIO_PinModeSet(TOUCH_Y1, gpioModeInput, 0);
GPIO_PinModeSet(TOUCH_Y2, gpioModeInput, 0);
sInit.input = ADC_X;
sInit.acqTime = adcAcqTime16; /* pressed, so speed-up */
ADC_InitSingle(ADC0, &sInit);
current_pos.pen = newpos.pen;
TOUCH_RecalculatePosition(&newpos);
if (newpos.pen)
{
int call_upcall = TOUCH_StateChanged();
if (call_upcall)
{
current_pos.x = newpos.x;
current_pos.y = newpos.y;
}
current_pos.adcx = newpos.adcx;
current_pos.adcy = newpos.adcy;
current_pos.pen = 1;
if (call_upcall) TOUCH_CallUpcall();
}
newpos.pen = 1;
}
else
{
touch_state = TOUCH_INIT;
newpos.pen = 0;
current_pos.pen = 0;
TOUCH_CallUpcall();
}
break;
case TOUCH_MEASURE_Y: /* touch panel pressed, measure Y position */
newpos.adcy = (ADC_DataSingleGet(ADC0) + 31) >> 6; /* reduce ADC resolution to 10-bits */
GPIO_PinModeSet(TOUCH_Y1, gpioModePushPull, 0); /* to avoid overflow in calibration routines */
GPIO_PinModeSet(TOUCH_Y2, gpioModePushPull, 1);
GPIO_PinModeSet(TOUCH_X1, gpioModeInput, 0);
GPIO_PinModeSet(TOUCH_X2, gpioModeInput, 0);
sInit.input = ADC_Y;
ADC_InitSingle(ADC0, &sInit);
touch_state = TOUCH_MEASURE_X;
break;
case TOUCH_MEASURE_X: /* touch panel pressed, measure X position */
newpos.adcx = (ADC_DataSingleGet(ADC0) + 31) >> 6;
GPIO_PinModeSet(TOUCH_Y1, gpioModePushPull, 1);
GPIO_PinModeSet(TOUCH_Y2, gpioModePushPull, 1);
GPIO_PinModeSet(TOUCH_X1, gpioModeInputPullFilter , 0);
GPIO_PinModeSet(TOUCH_X2, gpioModeInput, 0);
sInit.input = ADC_Y;
ADC_InitSingle(ADC0, &sInit);
touch_state = TOUCH_CHECK_PRESS;
break;
default: touch_state = TOUCH_INIT;
}
ADC_IntClear(ADC0, ADC_IF_SINGLE);
ADC_Start(ADC0, adcStartSingle);
}
*******************************************************************************/int main()
{
CyGlobalIntEnable;
#if (DEBUG_UART_ENABLED == ENABLED)
UART_DEB_Start();
#endif /* (DEBUG_UART_ENABLED == ENABLED) */
DBG_PRINTF("BLE HID Keyboard Example Project \r\n");
LED_RED_Write(LED_OFF);
LED_BLU_Write(LED_OFF);
LED_GRN_Write(LED_OFF);
/* Start CYBLE component and register generic event handler */
CyBle_Start(AppCallBack);
#if (BAS_MEASURE_ENABLE != 0)
ADC_Start();
#endif /* BAS_MEASURE_ENABLE != 0 */
while(1)
{
/* CyBle_ProcessEvents() allows BLE stack to process pending events */
CyBle_ProcessEvents();
/* To achieve low power in the device */
LowPowerImplementation();
if((CyBle_GetState() == CYBLE_STATE_CONNECTED) && (suspend != CYBLE_HIDS_CP_SUSPEND))
{
if(mainTimer != 0u)
{
mainTimer = 0u;
#if (BAS_SIMULATE_ENABLE != 0)
SimulateBattery();
CyBle_ProcessEvents();
#endif /* BAS_SIMULATE_ENABLE != 0 */
#if (BAS_MEASURE_ENABLE != 0)
MeasureBattery();
CyBle_ProcessEvents();
#endif /* BAS_MEASURE_ENABLE != 0 */
if(keyboardSimulation == ENABLED)
{
SimulateKeyboard();
}
}
/* Store bonding data to flash only when all debug information has been sent */
#if(CYBLE_BONDING_REQUIREMENT == CYBLE_BONDING_YES)
#if (DEBUG_UART_ENABLED == ENABLED)
if((cyBle_pendingFlashWrite != 0u) &&
((UART_DEB_SpiUartGetTxBufferSize() + UART_DEB_GET_TX_FIFO_SR_VALID) == 0u))
#else
if(cyBle_pendingFlashWrite != 0u)
#endif /* (DEBUG_UART_ENABLED == ENABLED) */
{
CYBLE_API_RESULT_T apiResult;
apiResult = CyBle_StoreBondingData(0u);
(void)apiResult;
DBG_PRINTF("Store bonding data, status: %x \r\n", apiResult);
}
#endif /* CYBLE_BONDING_REQUIREMENT == CYBLE_BONDING_YES */
}
}
}
int main(void)
{
/** Number of samples/channels taken from accelerometer. */
#define ACCEL_SAMPLES 3
/** X axis sample index. */
#define ACCEL_X 0
/** Y axis sample index. */
#define ACCEL_Y 1
/** Z axis sample index. */
#define ACCEL_Z 2
/*
* Tilt levels: Midpoint is theoretically half value of max sampling value
* (ie 0x800 for 12 bit sampling). In real world, some sort of calibration
* is required if more accurate sensing is required. We just use set some
* fixed limit, that should be sufficient for this basic example.
*/
/** Tilt left limit */
#define TILT_LEFT 0x750
/** Tilt right limit */
#define TILT_RIGHT 0x8b0
SYSTEM_ChipRevision_TypeDef chipRev;
uint32_t leds;
uint32_t samples[ACCEL_SAMPLES];
int errataShift = 0;
int i;
/* Chip revision alignment and errata fixes */
CHIP_Init();
/* ADC errata for rev B when using VDD as reference, need to multiply */
/* result by 2 */
SYSTEM_ChipRevisionGet(&chipRev);
if ((chipRev.major == 1) && (chipRev.minor == 1))
{
errataShift = 1;
}
/* Initialize DK board register access */
BSP_Init(BSP_INIT_DEFAULT);
/* If first word of user data page is non-zero, enable eA Profiler trace */
BSP_TraceProfilerSetup();
/* Connect accelerometer to EFM32. */
BSP_PeripheralAccess(BSP_ACCEL, true);
/* Enable clocks required */
CMU_ClockEnable(cmuClock_HFPER, true);
CMU_ClockEnable(cmuClock_ADC0, true);
CMU_ClockEnable(cmuClock_DMA, true);
/* Configure ADC and DMA used for scanning accelerometer */
accelADCConfig();
accelDMAConfig();
/* Main loop, keep polling accelerometer */
leds = 0x0180;
while (1)
{
DMA_ActivateBasic(ACCEL_DMA_CHANNEL,
true,
false,
samples,
(void *)((uint32_t)&(ADC0->SCANDATA)),
ACCEL_SAMPLES - 1);
/* Scan all axis', even though this app only use the X axis */
ADC_IntClear(ADC0, ADC_IF_SCAN);
ADC_Start(ADC0, adcStartScan);
/* Poll for completion, entering EM2 when waiting for next poll */
while (!(ADC_IntGet(ADC0) & ADC_IF_SCAN))
{
RTCDRV_Trigger(5, NULL);
EMU_EnterEM2(true);
}
if (errataShift)
{
for (i = 0; i < ACCEL_SAMPLES; i++)
{
samples[i] <<= errataShift;
}
}
if (samples[ACCEL_X] < TILT_LEFT)
{
if (leds < 0xc000)
{
leds <<= 1;
}
}
else if (samples[ACCEL_X] > TILT_RIGHT)
{
if (leds > 0x0003)
{
leds >>= 1;
}
}
else
{
if (leds > 0x0180)
/**************************************************************************//**
* @brief Main function
*****************************************************************************/
int main(void)
{
uint8_t prod_rev;
uint32_t temp;
uint32_t temp_offset;
float temperature;
/* Initialize DK board register access */
BSP_Init(BSP_INIT_DEFAULT);
/* If first word of user data page is non-zero, enable eA Profiler trace */
BSP_TraceProfilerSetup();
/* Initialize the TFT stdio retarget module. */
RETARGET_TftInit();
printf("\nEFM32 onchip temperature sensor example\n\n");
CMU_ClockEnable(cmuClock_HFPER, true);
CMU_ClockEnable(cmuClock_ADC0, true);
CMU_ClockEnable(cmuClock_GPIO, true);
/* Enable board control interrupts */
BSP_InterruptDisable(0xffff);
BSP_InterruptFlagsClear(0xffff);
BSP_InterruptEnable(BC_INTEN_JOYSTICK);
temperatureIRQInit();
/* This is a work around for Chip Rev.D Errata, Revision 0.6. */
/* Check for product revision 16 and 17 and set the offset */
/* for ADC0_TEMP_0_READ_1V25. */
prod_rev = (DEVINFO->PART & _DEVINFO_PART_PROD_REV_MASK) >> _DEVINFO_PART_PROD_REV_SHIFT;
if( (prod_rev == 16) || (prod_rev == 17) )
{
temp_offset = 112;
}
else
{
temp_offset = 0;
}
/* Setup ADC for sampling internal temperature sensor. */
setupSensor();
/* Main loop - just read temperature and update LCD */
while (1)
{
/* Start one ADC sample */
ADC_Start(ADC0, adcStartSingle);
/* Wait in EM1 for ADC to complete */
EMU_EnterEM1();
/* Read sensor value */
/* According to rev. D errata ADC0_TEMP_0_READ_1V25 should be decreased */
/* by the offset but it is the same if ADC reading is increased - */
/* reference manual 28.3.4.2. */
temp = ADC_DataSingleGet(ADC0) + temp_offset;
/* Convert ADC sample to Fahrenheit / Celsius and print string to display */
if (showFahrenheit)
{
temperature = convertToFahrenheit(temp);
}
else
{
temperature = convertToCelsius(temp);
}
printf("%d.%d %c\n",
(int) temperature, (int)(10*(temperature-(int)temperature)),
showFahrenheit? 'F' : 'C');
/* Sleep for 2 seconds in EM 2 */
RTCDRV_Trigger(2000, NULL);
EMU_EnterEM2(true);
}
}
