/* Testing of SAR A/D Keypad Voltage Measurement */
int sar_test_keypad_voltage(void)
{
CSL_Status status;
CSL_SarHandleObj *SarHandle;
CSL_SarChSetup param;
int result;
int chanNo;
Uint16 readBuffer;
result = CSL_TEST_FAILED;
printf("Testing SAR in polling mode\n");
/* Initialize the SAR module */
status = SAR_init();
if(status != CSL_SOK)
{
printf("SAR Init Failed!!\n");
return(result);
}
/* Open SAR channel */
status = SAR_chanOpen(&SarObj,CSL_SAR_CHAN_3);
SarHandle = &SarObj;
if(status != CSL_SOK)
{
printf("SAR_chanOpen Failed!!\n");
return result;
}
/* Initialize channel */
status = SAR_chanInit(SarHandle);
if(status != CSL_SOK)
{
printf("SAR_chanInit Failed!!\n");
return(result);
}
param.OpMode = CSL_SAR_POLLING;
param.MultiCh = CSL_SAR_NO_DISCHARGE;
param.RefVoltage = CSL_SAR_REF_VIN;
param.SysClkDiv = 0x0b ;
/* Configuration for SAR module */
status = SAR_chanSetup(SarHandle,¶m);
if(status != CSL_SOK)
{
printf("SAR_chanConfig Failed!!\n");
return(result);
}
/* Set channel cycle set */
status = SAR_chanCycSet(SarHandle,CSL_SAR_CONTINUOUS_CONVERSION);
if(status != CSL_SOK)
{
printf("SAR_chanCycSet Failed!!\n");
return(result);
}
/* set ADC Measurement parameters */
status = SAR_A2DMeasParamSet(SarHandle,CSL_KEYPAD_MEAS,&chanNo);
if(status != CSL_SOK)
{
printf("SAR_A2DMeasParamSet Failed!!\n");
return(result);
}
printf("Channel Number selected %d\n",chanNo);
/* start the conversion */
status = SAR_startConversion(SarHandle);
if(status != CSL_SOK)
{
printf("SAR_startConversion Failed!!\n");
return(result);
}
i = 0;
/* Read the ADC data continously 40 times */
while(i < 40)
{
/* Check whether the ADC data is available or not */
while(CSL_SAR_DATA_AVAILABLE !=
SAR_getStatus(SarHandle,&status));
status = SAR_readData(SarHandle, &readBuffer);
if(status != CSL_SOK)
{
printf("SAR_readData Failed!!\n");
return(result);
}
i++;
printf("SAR ADC read data 0x%x\n",readBuffer);
}
/* Stop the conversion */
status = SAR_stopConversion(SarHandle);
if(status != CSL_SOK)
{
printf("SAR_stopConversion Failed!!\n");
return(result);
}
/* Close the channel */
status = SAR_chanClose(SarHandle);
if(status != CSL_SOK)
{
printf("SAR_chanClose Failed!!\n");
return(result);
}
/* Deinit */
status = SAR_deInit();
if(status != CSL_SOK)
{
printf("SAR_deInit Failed!!\n");
return(result);
}
result = CSL_TEST_PASSED;
return(result);
}
/* User Interface SWI */
void UserInterfaceSwi(void)
{
Bool sarDataReady;
Int16 status;
Uint16 sarReadData;
UI_PBNState pbnState;
Int16 pbnStateAllowed;
pUsbContext pContext;
pContext = &gUsbContext;
/* Check SAR status */
sarDataReady = SAR_getStatus(gsSarHandle, &status); /* SAR data should always be ready since Timer frequency is very slow compared with SAR sampling frequency */
if ((sarDataReady != CSL_SAR_DATA_AVAILABLE) || (status != CSL_SOK))
{
LOG_printf(&trace, "ERROR: SAR_getStatus()");
}
/* Read SAR data */
status = SAR_readData(gsSarHandle, &sarReadData);
if (status != CSL_SOK)
{
LOG_printf(&trace, "ERROR: SAR_readData()");
}
/* Start next conversion */
status = SAR_startConversion(gsSarHandle);
if (status != CSL_SOK)
{
LOG_printf(&trace, "ERROR: SAR_startConversion()");
}
/* Get current push-button network state */
status = getCurrentPBNState(sarReadData, &pbnState);
if (status != UI_SOK)
{
LOG_printf(&trace, "ERROR: getCurrentPBNState()");
}
//if (pbnState == UI_PUSH_BUTTON_UNKNOWN) LOG_printf(&trace, "pbnState = 0x%04X", pbnState);
/* Check push-button network state is allowed state */
status = chkAllowedPBNState(pbnState, gAllowedPbnStates, NUM_ALLOWED_PBN_STATES, &pbnStateAllowed);
if (status != UI_SOK)
{
LOG_printf(&trace, "ERROR: chkAllowedPBNState()");
}
/* Filter disallowed push-button network states, */
/* Check change in push-button network state */
if ((pbnStateAllowed) && (pbnState != gPrevPbnState))
{
/* Generate HID report */
genHidReport(pbnState, gHidReport);
gPrevPbnState = pbnState;
gHidReportReady = TRUE;
if (hidIntInEpReady == TRUE)
{
DeviceNotification(pContext, CSL_USB_EVENT_HID_REPORT_TX);
gHidReportReady = FALSE;
hidIntInEpReady = FALSE;
}
}
}
