int AdcInit(void) {
XSysMon_Config *ConfigPtr;
int Status;
ConfigPtr = XSysMon_LookupConfig(SYSMON_DEVICE_ID);
if (ConfigPtr == NULL) {
return XST_FAILURE;
}
XSysMon_CfgInitialize(SysMonInstPtr, ConfigPtr, ConfigPtr->BaseAddress);
XSysMon_SetSequencerMode(SysMonInstPtr, XSM_SEQ_MODE_SAFE);
XSysMon_SetAlarmEnables(SysMonInstPtr, 0x0);
XSysMon_SetAvg(SysMonInstPtr, XSM_AVG_0_SAMPLES);
Status = XSysMon_SetSeqInputMode(SysMonInstPtr, XSM_SEQ_CH_AUX00);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
Status = XSysMon_SetSeqAcqTime(SysMonInstPtr,
XSM_SEQ_CH_AUX00 | XSM_SEQ_CH_AUX06 | XSM_SEQ_CH_AUX07
| XSM_SEQ_CH_AUX14 | XSM_SEQ_CH_AUX15);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
Status = XSysMon_SetSeqChEnables(SysMonInstPtr,
XSM_SEQ_CH_AUX00 | XSM_SEQ_CH_AUX06 | XSM_SEQ_CH_AUX07
| XSM_SEQ_CH_AUX14 | XSM_SEQ_CH_AUX15);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
XSysMon_SetAdcClkDivisor(SysMonInstPtr, 32);
XSysMon_SetCalibEnables(SysMonInstPtr,
XSM_CFR1_CAL_PS_GAIN_OFFSET_MASK
| XSM_CFR1_CAL_ADC_GAIN_OFFSET_MASK);
XSysMon_SetSequencerMode(SysMonInstPtr, XSM_SEQ_MODE_CONTINPASS);
XSysMon_GetStatus(SysMonInstPtr);
while ((XSysMon_GetStatus(SysMonInstPtr) & XSM_SR_EOS_MASK)
!= XSM_SR_EOS_MASK);
return 0;
}
/**
*
* This function runs a test on the System Monitor/ADC device using the
* driver APIs.
* This function does the following tasks:
* - Initiate the System Monitor device driver instance
* - Run self-test on the device
* - Setup the sequence registers to continuously monitor on-chip
* temperature, VCCINT and VCCAUX
* - Setup configuration registers to start the sequence
* - Read the latest on-chip temperature, VCCINT and VCCAUX
*
* @param SysMonDeviceId is the XPAR_<SYSMON_ADC_instance>_DEVICE_ID value
* from xparameters.h.
*
* @return
* - XST_SUCCESS if the example has completed successfully.
* - XST_FAILURE if the example has failed.
*
* @note None
*
****************************************************************************/
int SysMonPolledPrintfExample(u16 SysMonDeviceId)
{
int Status;
XSysMon_Config *ConfigPtr;
u32 TempRawData;
u32 VccAuxRawData;
u32 VccIntRawData;
float TempData;
float VccAuxData;
float VccIntData;
float MaxData;
float MinData;
XSysMon *SysMonInstPtr = &SysMonInst;
printf("\r\nEntering the SysMon Polled Example. \r\n");
/*
* Initialize the SysMon driver.
*/
ConfigPtr = XSysMon_LookupConfig(SysMonDeviceId);
if (ConfigPtr == NULL) {
return XST_FAILURE;
}
XSysMon_CfgInitialize(SysMonInstPtr, ConfigPtr,
ConfigPtr->BaseAddress);
/*
* Self Test the System Monitor/ADC device
*/
Status = XSysMon_SelfTest(SysMonInstPtr);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Disable the Channel Sequencer before configuring the Sequence
* registers.
*/
XSysMon_SetSequencerMode(SysMonInstPtr, XSM_SEQ_MODE_SAFE);
/*
* Disable all the alarms in the Configuration Register 1.
*/
XSysMon_SetAlarmEnables(SysMonInstPtr, 0x0);
/*
* Setup the Averaging to be done for the channels in the
* Configuration 0 register as 16 samples:
*/
XSysMon_SetAvg(SysMonInstPtr, XSM_AVG_16_SAMPLES);
/*
* Setup the Sequence register for 1st Auxiliary channel
* Setting is:
* - Add acquisition time by 6 ADCCLK cycles.
* - Bipolar Mode
*
* Setup the Sequence register for 16th Auxiliary channel
* Setting is:
* - Add acquisition time by 6 ADCCLK cycles.
* - Unipolar Mode
*/
Status = XSysMon_SetSeqInputMode(SysMonInstPtr, XSM_SEQ_CH_AUX00);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
Status = XSysMon_SetSeqAcqTime(SysMonInstPtr, XSM_SEQ_CH_AUX15 |
XSM_SEQ_CH_AUX00);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Enable the averaging on the following channels in the Sequencer
* registers:
* - On-chip Temperature, VCCINT/VCCAUX supply sensors
* - 1st/16th Auxiliary Channels
* - Calibration Channel
*/
Status = XSysMon_SetSeqAvgEnables(SysMonInstPtr, XSM_SEQ_CH_TEMP |
XSM_SEQ_CH_VCCINT |
XSM_SEQ_CH_VCCAUX |
XSM_SEQ_CH_AUX00 |
XSM_SEQ_CH_AUX15 |
XSM_SEQ_CH_CALIB);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Enable the following channels in the Sequencer registers:
* - On-chip Temperature, VCCINT/VCCAUX supply sensors
* - 1st/16th Auxiliary Channel
* - Calibration Channel
*/
Status = XSysMon_SetSeqChEnables(SysMonInstPtr, XSM_SEQ_CH_TEMP |
XSM_SEQ_CH_VCCINT |
XSM_SEQ_CH_VCCAUX |
XSM_SEQ_CH_AUX00 |
XSM_SEQ_CH_AUX15 |
XSM_SEQ_CH_CALIB);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
/*
* Set the ADCCLK frequency equal to 1/32 of System clock for the System
* Monitor/ADC in the Configuration Register 2.
*/
XSysMon_SetAdcClkDivisor(SysMonInstPtr, 32);
/*
* Set the Calibration enables.
*/
XSysMon_SetCalibEnables(SysMonInstPtr,
XSM_CFR1_CAL_PS_GAIN_OFFSET_MASK |
XSM_CFR1_CAL_ADC_GAIN_OFFSET_MASK);
/*
* Enable the Channel Sequencer in continuous sequencer cycling mode.
*/
XSysMon_SetSequencerMode(SysMonInstPtr, XSM_SEQ_MODE_CONTINPASS);
/*
* Wait till the End of Sequence occurs
*/
XSysMon_GetStatus(SysMonInstPtr); /* Clear the old status */
while ((XSysMon_GetStatus(SysMonInstPtr) & XSM_SR_EOS_MASK) !=
XSM_SR_EOS_MASK);
/*
* Read the on-chip Temperature Data (Current/Maximum/Minimum)
* from the ADC data registers.
*/
TempRawData = XSysMon_GetAdcData(SysMonInstPtr, XSM_CH_TEMP);
TempData = XSysMon_RawToTemperature(TempRawData);
printf("\r\nThe Current Temperature is %0d.%03d Centigrades.\r\n",
(int)(TempData), SysMonFractionToInt(TempData));
TempRawData = XSysMon_GetMinMaxMeasurement(SysMonInstPtr, XSM_MAX_TEMP);
MaxData = XSysMon_RawToTemperature(TempRawData);
printf("The Maximum Temperature is %0d.%03d Centigrades. \r\n",
(int)(MaxData), SysMonFractionToInt(MaxData));
TempRawData = XSysMon_GetMinMaxMeasurement(SysMonInstPtr, XSM_MIN_TEMP);
MinData = XSysMon_RawToTemperature(TempRawData);
printf("The Minimum Temperature is %0d.%03d Centigrades. \r\n",
(int)(MinData), SysMonFractionToInt(MinData));
/*
* Read the VccInt Votage Data (Current/Maximum/Minimum) from the
* ADC data registers.
*/
VccIntRawData = XSysMon_GetAdcData(SysMonInstPtr, XSM_CH_VCCINT);
VccIntData = XSysMon_RawToVoltage(VccIntRawData);
printf("\r\nThe Current VCCINT is %0d.%03d Volts. \r\n",
(int)(VccIntData), SysMonFractionToInt(VccIntData));
VccIntRawData = XSysMon_GetMinMaxMeasurement(SysMonInstPtr,
XSM_MAX_VCCINT);
MaxData = XSysMon_RawToVoltage(VccIntRawData);
printf("The Maximum VCCINT is %0d.%03d Volts. \r\n",
(int)(MaxData), SysMonFractionToInt(MaxData));
VccIntRawData = XSysMon_GetMinMaxMeasurement(SysMonInstPtr,
XSM_MIN_VCCINT);
MinData = XSysMon_RawToVoltage(VccIntRawData);
printf("The Minimum VCCINT is %0d.%03d Volts. \r\n",
(int)(MinData), SysMonFractionToInt(MinData));
/*
* Read the VccAux Votage Data (Current/Maximum/Minimum) from the
* ADC data registers.
*/
VccAuxRawData = XSysMon_GetAdcData(SysMonInstPtr, XSM_CH_VCCAUX);
VccAuxData = XSysMon_RawToVoltage(VccAuxRawData);
printf("\r\nThe Current VCCAUX is %0d.%03d Volts. \r\n",
(int)(VccAuxData), SysMonFractionToInt(VccAuxData));
VccAuxRawData = XSysMon_GetMinMaxMeasurement(SysMonInstPtr,
XSM_MAX_VCCAUX);
MaxData = XSysMon_RawToVoltage(VccAuxRawData);
printf("The Maximum VCCAUX is %0d.%03d Volts. \r\n",
(int)(MaxData), SysMonFractionToInt(MaxData));
VccAuxRawData = XSysMon_GetMinMaxMeasurement(SysMonInstPtr,
XSM_MIN_VCCAUX);
MinData = XSysMon_RawToVoltage(VccAuxRawData);
printf("The Minimum VCCAUX is %0d.%03d Volts. \r\n\r\n",
(int)(MinData), SysMonFractionToInt(MinData));
printf("Exiting the SysMon Polled Example. \r\n");
return XST_SUCCESS;
}
/***************************************************************************
* Looks up the current config and initializes XADC_WIZ
*
* @ Channel: Chooses channel for single channel mode. Options are Channel 6, Channel 7,
* Channel 14 and Channel 15.
*
* @ SequencerMode: Choose between SINGLE_CHANNEL_MODE (= XSM_SEQ_MODE_SINGCHAN) for single channel mode
* or CONTINUOUS_SAMPLING_MODE(= XSM_SEQ_MODE_CONTINPASS) for continuous sequencing mode.
*
* Always in Differential mode
* Always in continuous mode
* Always slow AcQCycles ( for sequence mode of operations adjust XSysMon_SetSeqAcqTime(&SysMon , SEQ_CHANNELS) to
* XSysMon_SetSeqAcqTime(&SysMon , ~SEQ_CHANNELS) )
*
***************************************************************************/
void init_XADC_WIZ(char channel, u8 SequencerMode)
{
int Status;
int ParameterStatus;
int SequenceStatus;
int InputStatus;
int AcqStatus;
int IncreaseAcqCycles = FALSE;
int IsEventMode = FALSE;
int IsDifferentialMode = TRUE;
u8 Divisor = 0;
XSysMon_Config *Config;
Config = XSysMon_LookupConfig(XPAR_XADC_WIZ_0_DEVICE_ID);
if (NULL == Config) {
//return XST_FAILURE;
}
Status = XSysMon_CfgInitialize(&SysMon,Config ,Config->BaseAddress);
if (Status != XST_SUCCESS) {
xil_printf("XADC_WIZ initialization FAILED!\n \r");
//return XST_FAILURE;
}
else {
xil_printf("XADC_WIZ initialization SUCCESS!\n \r");
}
/* NO averaging*/
XSysMon_SetAvg(&SysMon, XSM_AVG_0_SAMPLES);
/* Calibrate ADC gain and offset + Power Supply gain and offset*/
XSysMon_SetCalibEnables(&SysMon, XSM_CFR1_CAL_ADC_GAIN_OFFSET_MASK | XSM_CFR1_CAL_PS_GAIN_OFFSET_MASK);
/* Sets the channel seqence mode:
* - Default safe mode (XSM_SEQ_MODE_SAFE)
* - One pass through sequence (XSM_SEQ_MODE_ONEPASS)
* - Continuous channel sequencing (XSM_SEQ_MODE_CONTINPASS)
* - Single Channel/Sequencer off (XSM_SEQ_MODE_SINGCHAN)
* - Simulataneous sampling mode (XSM_SEQ_MODE_SIMUL)
* - Independent mode (XSM_SEQ_MODE_INDEPENDENT)
*
* NOTE: We will only use single channel mode and continious channel sequencing mode!!!
*/
if(SequencerMode = XSM_SEQ_MODE_SINGCHAN)
{
XSysMon_SetSequencerMode(&SysMon,XSM_SEQ_MODE_SINGCHAN);
/* Sets the parameters for the single channel mode
* int ParameterStatus; => Return value, =1 when failed
* int IncreaseAcqCycles = FALSE; => TRUE: increased to 10 ADCCLK cycles | FALSE: default 4 ADCCLK cycles
* int IsEventMode = FALSE; => TRUE: event driven sampling mode | FALSE: continious sampling mode
* int IsDifferentialMode = TRUE; => TRUE: differential mode | FALSE: unipolar mode
*/
ParameterStatus = XSysMon_SetSingleChParams(&SysMon,(XSM_CH_AUX_MIN + (channel -1)),
IncreaseAcqCycles, IsEventMode, IsDifferentialMode);
if (ParameterStatus != XST_SUCCESS) {
xil_printf("Setting SingleChannelParameters FAILED!\n \r");
}
}
else if(SequencerMode = XSM_SEQ_MODE_CONTINPASS)
{
XSysMon_SetSequencerMode(&SysMon,XSM_SEQ_MODE_SAFE); /* Settings need to be applied in safe mode*/
XSysMon_SetSequencerEvent(&SysMon, IsEventMode); /* IsEventmode = FALSE => continious sampling!*/
XSysMon_SetAdcClkDivisor(&SysMon, Divisor); /* Divisor sets the clockdevision for the ADC sampling*/
SequenceStatus= XSysMon_SetSeqChEnables(&SysMon,SEQ_CHANNELS); /* Selects channels to sequence*/
if (SequenceStatus != XST_SUCCESS) {
xil_printf("Enabling Sequence Channels FAILED!\n \r");
}
InputStatus = XSysMon_SetSeqInputMode(&SysMon, SEQ_CHANNELS); /* Sets the channels to differential mode */
if (InputStatus != XST_SUCCESS) {
xil_printf("Setting Input Mode FAILED!\n \r");
}
AcqStatus = XSysMon_SetSeqAcqTime(&SysMon , SEQ_CHANNELS); /* If function is enabled: Acquisition cycles will be extended to 10 ADCCLK cycles*/
if (AcqStatus != XST_SUCCESS) {
xil_printf("Setting AcqTime FAILED!\n \r");
}
XSysMon_SetSequencerMode(&SysMon,XSM_SEQ_MODE_CONTINPASS); /* Continuous sampling mode enabled */
}
}