#define ADC_BASE  *(volatile unsigned short *)0x7000ad00
#define ADC_STATUS  *(volatile unsigned short *)0x7000ad04
ADC_BASE |= 0x2000000;
ADC_BASE |= 0x8000000;

ADC_BASE |= 0x2000000;
ADC_BASE |= 0x8000000;
sleep(HZ/20);

unsigned int status = ADC_STATUS;
snprintf(buf,...);
lcd_puts(0,0,buf);