bool_t digitalRead( int8_t pin ){
bool_t ret_val = OFF;
int8_t pinNamePort = 0;
int8_t pinNamePin = 0;
int8_t func = 0;
int8_t gpioPort = 0;
int8_t gpioPin = 0;
digitalObtainPinConfig( pin, INPUT, &pinNamePort, &pinNamePin, &func,
&gpioPort, &gpioPin );
ret_val = (bool_t) Chip_GPIO_ReadPortBit( LPC_GPIO_PORT, gpioPort, gpioPin );
return ret_val;
}
bool_t digitalWrite( int8_t pin, bool_t value ){
bool_t ret_val = 1;
int8_t pinNamePort = 0;
int8_t pinNamePin = 0;
int8_t func = 0;
int8_t gpioPort = 0;
int8_t gpioPin = 0;
digitalObtainPinConfig( pin, OUTPUT, &pinNamePort, &pinNamePin, &func,
&gpioPort, &gpioPin );
Chip_GPIO_SetPinState( LPC_GPIO_PORT, gpioPort, gpioPin, value);
return ret_val;
}
bool_t digitalConfig( int8_t pin, int8_t config ){
bool_t ret_val = 1;
int8_t pinNamePort = 0;
int8_t pinNamePin = 0;
int8_t func = 0;
int8_t gpioPort = 0;
int8_t gpioPin = 0;
digitalObtainPinConfig( pin, config, &pinNamePort, &pinNamePin, &func,
&gpioPort, &gpioPin );
switch(config){
case ENABLE_DIGITAL_IO:
/* Initializes GPIO */
Chip_GPIO_Init(LPC_GPIO_PORT);
break;
case INPUT:
Chip_SCU_PinMux(
pinNamePort,
pinNamePin,
SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS,
func
);
Chip_GPIO_SetDir( LPC_GPIO_PORT, gpioPort, ( 1 << gpioPin ), INPUT );
break;
case INPUT_PULLUP:
Chip_SCU_PinMux(
pinNamePort,
pinNamePin,
SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS,
func
);
Chip_GPIO_SetDir( LPC_GPIO_PORT, gpioPort, ( 1 << gpioPin ), INPUT );
break;
case INPUT_PULLDOWN:
Chip_SCU_PinMux(
pinNamePort,
pinNamePin,
SCU_MODE_PULLDOWN | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS,
func
);
Chip_GPIO_SetDir( LPC_GPIO_PORT, gpioPort, ( 1 << gpioPin ), INPUT );
break;
case INPUT_REPEATER:
Chip_SCU_PinMux(
pinNamePort,
pinNamePin,
SCU_MODE_REPEATER | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS,
func
);
Chip_GPIO_SetDir( LPC_GPIO_PORT, gpioPort, ( 1 << gpioPin ), INPUT );
break;
case OUTPUT:
Chip_SCU_PinMux(
pinNamePort,
pinNamePin,
SCU_MODE_INACT | SCU_MODE_ZIF_DIS,
func
);
Chip_GPIO_SetDir( LPC_GPIO_PORT, gpioPort, ( 1 << gpioPin ), OUTPUT );
Chip_GPIO_SetPinState( LPC_GPIO_PORT, gpioPort, gpioPin, 0);
break;
default:
ret_val = 0;
break;
}
return ret_val;
}
bool_t digitalConfig( int8_t pin, int8_t mode ){
bool_t ret_val = 1;
int8_t pinNamePort = 0;
int8_t pinNamePin = 0;
int8_t func = 0;
int8_t gpioPort = 0;
int8_t gpioPin = 0;
digitalObtainPinConfig( pin, mode, &pinNamePort, &pinNamePin, &func,
&gpioPort, &gpioPin );
switch(mode){
case INPUT:
Chip_SCU_PinMux(
pinNamePort,
pinNamePin,
SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS,
func
);
Chip_GPIO_SetDir( LPC_GPIO_PORT, gpioPort, ( 1 << gpioPin ), INPUT );
break;
case INPUT_PULLUP:
Chip_SCU_PinMux(
pinNamePort,
pinNamePin,
SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS,
func
);
Chip_GPIO_SetDir( LPC_GPIO_PORT, gpioPort, ( 1 << gpioPin ), INPUT );
break;
case INPUT_PULLDOWN:
Chip_SCU_PinMux(
pinNamePort,
pinNamePin,
SCU_MODE_PULLDOWN | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS,
func
);
Chip_GPIO_SetDir( LPC_GPIO_PORT, gpioPort, ( 1 << gpioPin ), INPUT );
break;
case INPUT_REPEATER:
Chip_SCU_PinMux(
pinNamePort,
pinNamePin,
SCU_MODE_REPEATER | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS,
func
);
Chip_GPIO_SetDir( LPC_GPIO_PORT, gpioPort, ( 1 << gpioPin ), INPUT );
break;
case OUTPUT:
Chip_SCU_PinMux(
pinNamePort,
pinNamePin,
SCU_MODE_INACT | SCU_MODE_ZIF_DIS,
func
);
Chip_GPIO_SetDir( LPC_GPIO_PORT, gpioPort, ( 1 << gpioPin ), OUTPUT );
break;
default:
ret_val = 0;
break;
}
return ret_val;
}
