#include <stdio.h>
#include <stdint.h>
typedef union {
struct {
uint16_t adc_value : 12;
uint16_t channel : 4;
};
uint16_t adc_reg;
} ADC_Result;
int main() {
uint16_t reg;
scanf("%hx", ®);
ADC_Result reg1;
reg1.adc_reg = reg;
printf("Channel: %u\n",reg1.channel);
printf("ADC Value: %u\n",reg1.adc_value);
// Fill union and print channel and adc_value
return 0;
}