ADC Channels data affecting other ADC Channels

Hello All,

I am trying to interface 3 different potentiometer for 3 ADC Channel (Channel 0, Channel 1 and Channel 2).

I am getting an exact data if i work with single channel but when I try and use multiple ADC, Data of one channel starts affecting data of other channel.

I have tried and printed data of three different ADC value on UART at 9600 Baudrate.

Please help me out in rectify my code below if it has different issue:

#include <stdbool.h>
#include <stdint.h>
#include "inc/hw_memmap.h"
#include "driverlib/adc.h"
#include "driverlib/gpio.h"
#include "driverlib/pin_map.h"
#include "driverlib/sysctl.h"
#include "driverlib/uart.h"
#include "utils/uartstdio.h"

void InitConsole(void)
{
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
GPIOPinConfigure(GPIO_PA0_U0RX);
GPIOPinConfigure(GPIO_PA1_U0TX);
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
UARTClockSourceSet(UART0_BASE, UART_CLOCK_PIOSC);
GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
UARTStdioConfig(0, 9600, 16000000);
}

int main(void)
{
uint32_t ADC0Val[3];
SysCtlClockSet(SYSCTL_SYSDIV_10 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_16MHZ);
InitConsole();

SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
GPIOPinTypeADC(GPIO_PORTE_BASE, GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3);

ADCSequenceConfigure(ADC0_BASE, 1, ADC_TRIGGER_PROCESSOR, 0);
ADCSequenceStepConfigure(ADC0_BASE, 1, 0, ADC_CTL_CH2);
ADCSequenceStepConfigure(ADC0_BASE, 1, 1, ADC_CTL_CH1);
ADCSequenceStepConfigure(ADC0_BASE, 1, 2, ADC_CTL_CH0 | ADC_CTL_IE | ADC_CTL_END);
ADCSequenceEnable(ADC0_BASE, 1);

int test = 0;
int test1 = 0;
int test2 = 0;
while(1)
{

ADCIntClear(ADC0_BASE, 1);
ADCProcessorTrigger(ADC0_BASE, 1);
while(!ADCIntStatus(ADC0_BASE, 1, false))
{
}
ADCIntClear(ADC0_BASE, 1);
ADCSequenceDataGet(ADC0_BASE, 1, ADC0Val);
test = ADC0Val[0];
test1 = ADC0Val[1];
test2 = ADC0Val[2];
UARTprintf("ADC:%d\t\t",test);
UARTprintf("ADC1:%d\t",test1);
UARTprintf("ADC2:%d\n",test2);
SysCtlDelay(SysCtlClockGet() / 12);
}
}