Thank you . Please check the below code is good on not.
void ADC_Init(void)
{
/* SIM_SCGC6: ADC0=1 */
SIM_SCGC6 |= SIM_SCGC6_ADC0_MASK;
/* PORTB_PCR3: ISF=0,MUX=0 */
PORTB_PCR3 &= (uint32_t)~(uint32_t)((PORT_PCR_ISF_MASK | PORT_PCR_MUX(0x07)));
ADC0_CFG1 = ADC_CFG1_ADIV(0x01) |
ADC_CFG1_ADLSMP_MASK |
ADC_CFG1_MODE(0x03) |
ADC_CFG1_ADICLK(0x00);
/* ADC0_CFG2: ADACKEN=0,ADHSC=0,ADLSTS=2 */
ADC0_CFG2 = (uint32_t)((ADC0_CFG2 & (uint32_t)~(uint32_t)(
ADC_CFG2_ADACKEN_MASK |
ADC_CFG2_ADHSC_MASK |
ADC_CFG2_ADLSTS(0x01)
)) | (uint32_t)(
ADC_CFG2_ADLSTS(0x02)
));
/* ADC0_SC2: ??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,ADACT=0,ADTRG=0,ACFE=0,ACFGT=0,ACREN=0,DMAEN=0,REFSEL=0 */
ADC0_SC2 = ADC_SC2_REFSEL(0x00);
/* ADC0_SC3: ??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,??=0,CAL=0,CALF=1,??=0,??=0,ADCO=0,AVGE=0,AVGS=0 */
ADC0_SC3 = (ADC_SC3_CALF_MASK | ADC_SC3_AVGS(0x00));
}
/******************************************************************************
.Purpose : For getting the ADC value from register
.Param : Pointer to buffer to get the value.
.Returns : NULL
.Note :
******************************************************************************/
void Get_ADCValue(uint_32 *iBuffer)
{
uint_32 iCount;
/*Getting the ADC value from register*/
ADC0_RA = ADC_R_D(0);
iCount = ADC0_RA;
*iBuffer = iCount;
}