hi..i'm interfacing one switch status with tm4c123gh6pz by using one GPIO pin(PD6).The switch will give 0v in OFF condition n 2.6v when in ON condition.when i monitor that switch it always showing high..what is wrong with this???
main()
{
SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |SYSCTL_XTAL_8MHZ);/*set system clock as 8Mhz*/
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
GPIOPinTypeGPIOInput(GPIO_PORTD_BASE, GPIO_PIN_6);
while(1)
{
sw_status = (GPIOPinRead(GPIO_PORTD_BASE,GPIO_PIN_6));/*read the switch status*/
if( sw_status == 0x40 ) /*if switch goes high*/
{
adc1 = volts * 0.07022106997;/**/
LCDCM_enWrLCDDgt(adc1,0xc9,4,0);
}
else if(sw_status == 0x00 ) /*if switch goes low*/
{
adc0 = volts * 0.01110370868;/**/
LCDCM_enWrLCDDgt(adc0,0xc9,4,0);
}
}
Thanks in advance
