jcontrol.io
Class GPIO

java.lang.Object
  jcontrol.io.GPIO

public class GPIO
extends Object

Controls JControls available portpins.

The number of ports varies at JControl Modules, for details refer to the tables below.

JControl/Sticker

GPIO #	connector pin #	pin description	special use
-	12	GND
-	11	V_BATT	connected to battery
-	10	I2C_SDA	controlled by I2C
-	9	I2C_SCL	controlled by I2C
0	8	PWM0	also controlled by PWM, channel 0
1	7	PWM1	also controlled by PWM, channel 1
2	6	ADC0	also controlled by ADC, channel 0
3	5	ADC1	also controlled by ADC, channel 1
4	4	ADC2	also controlled by ADC, channel 2
5	3	ADC3	also controlled by ADC, channel 3
-	2	/PWR_ON	power on trigger
-	1	VCC	3.3V

JControl/PLUI (internal)

GPIO #	connector pin #	pin description	special use
-	1	VCC	3.3V
0	2	PWM0	also controlled by PWM, channel 0
1	3	PWM1	also controlled by PWM, channel 1
2	4	ADC0	also controlled by ADC, channel 0
3	5	ADC1	also controlled by ADC, channel 1
4	6	ADC2	also controlled by ADC, channel 2
5	7	ADC3	also controlled by ADC, channel 3
-	8	GND

JControl/SmartDiplay

GPIO #	connector pin #	pin description	special use
-	1	PE0/RS232_TXD	controlled by RS232
-	2	PE1/RS232_RXD	controlled by RS232
-	3	PE2/RS232_RTS	controlled by RS232Flow
-	4	PE3/RS232_CTS	controlled by RS232Flow
-	5	PB4/I2C_SDA	controlled by I2C
-	6	PB5/I2C_SCL	controlled by I2C
0	7	PB0	also controlled by PWM, channel 0
1	8	PB1	also controlled by PWM, channel 1
-	9	PB2/BACKLIGHT	controlled by Backlight
-	10	PB3/BUZZER	controlled by Buzzer
-	11	N.C.	not connected
-	12	GND
-	24	VCC	5V
-	23	KEY	no pin
-	22	/RESET	Reset input
-	21	N.C.	not connected
2	20	PD0	also controlled by ADC, channel 0
3	19	PD1	also controlled by ADC, channel 1
4	18	PD2	also controlled by ADC, channel 2
5	17	PD3	also controlled by ADC, channel 3
6	16	PD4	also controlled by ADC, channel 4
7	15	PD5	also controlled by ADC, channel 5
8	14	PD6	also controlled by ADC, channel 6
9	13	PD7	also controlled by ADC, channel 7

JControl/Stamp

GPIO #	connector pin #	pin description	special use
-	1	CANH	CAN bus (if Board has tranceiver)
-	2	CANL	CAN bus (if Board has tranceiver)
0	3	PB0	also controlled by PWM, channel 0
1	4	PB1	also controlled by PWM, channel 1
2	5	PB2	also controlled by PWM, channel 2
3	6	PB3	also controlled by PWM, channel 3
4	7	PB4/I2C_SDA	also controlled by I2C
5	8	PB5/I2C_SCL	also controlled by I2C
6	9	PB6
7	10	PB7
-	17	/RESET	also connected to reset button
-	18	/NMI
20	19	PE7/CONFIG	also connected to config LED and switch
-	20	GND
-	40	VCC	5V
-	39	KEY	no pin
8	38	PD0	also controlled by ADC, channel 0
9	37	PD1	also controlled by ADC, channel 1
10	36	PD2	also controlled by ADC, channel 2
11	35	PD3	also controlled by ADC, channel 3
12	34	PD4	also controlled by ADC, channel 4
13	33	PD5	also controlled by ADC, channel 5
14	32	PD6	also controlled by ADC, channel 6
15	31	PD7	also controlled by ADC, channel 7
16	24	PE0/TDO	also controlled by RS232
17	23	PE1/RDI	also controlled by RS232
18	22	PE2/CAN_TX	CAN bus, also controlled by CAN
19	21	PE3/CAN_RX	CAN bus, also controlled by CAN

Author:

Andreas Wesseler, Marcus Timmermann

Available on JControl Devices:

all

Field Summary

static int	FLOATING Represents a floating GPIO input mode.
static boolean	HIGH Represents the GPIO state "HIGH".
static boolean	LOW Represents the GPIO state "LOW" Used for input and output channels.
static int	OPENDRAIN Represents an GPIO output mode with with integrated pullup resistor.
static int	OPENDRAIN_HIGH Represents a GPIO output mode with with integrated pullup resistor.
static int	OPENDRAIN_LOW Represents a GPIO output mode with with integrated pullup resistor.
static int	PULLUP Represents a GPIO input mode with integrated weak pullup resistor.
static int	PUSHPULL Represents a GPIO Push/Pull output mode.
static int	PUSHPULL_HIGH Represents a GPIO Push/Pull output mode.
static int	PUSHPULL_LOW Represents a GPIO Push/Pull output mode.

Method Summary

static int	getMode(int channel) Gets the mode of the given pin.
static boolean	getState(int channel) Gets the state of a single IO-Pin.
static void	setMode(int channel, int mode) Sets the mode of the given pin.
static void	setState(int channel, boolean state) Sets a single IO-Pin.

Methods inherited from class java.lang.Object

clone, equals, notifyAll, wait

Field Detail

FLOATING

public static final int FLOATING

Represents a floating GPIO input mode.

See Also:

setMode(int, int), getMode(int), Constant Field Values

HIGH

public static final boolean HIGH

Represents the GPIO state "HIGH". Used for input and output channels.

See Also:

setState(int, boolean), getState(int), Constant Field Values

LOW

public static final boolean LOW

Represents the GPIO state "LOW" Used for input and output channels.

See Also:

setState(int, boolean), getState(int), Constant Field Values

OPENDRAIN

public static final int OPENDRAIN

Represents an GPIO output mode with with integrated pullup resistor. The GPIO's output state is undefined.

See Also:

setMode(int, int), getMode(int), Constant Field Values

OPENDRAIN_HIGH

public static final int OPENDRAIN_HIGH

Represents a GPIO output mode with with integrated pullup resistor. The GPIO's output state is "HIGH".

See Also:

setMode(int, int), getMode(int), Constant Field Values

OPENDRAIN_LOW

public static final int OPENDRAIN_LOW

Represents a GPIO output mode with with integrated pullup resistor. The GPIO's output state is "LOW".

See Also:

setMode(int, int), getMode(int), Constant Field Values

PULLUP

public static final int PULLUP

Represents a GPIO input mode with integrated weak pullup resistor.

See Also:

setMode(int, int), getMode(int), Constant Field Values

PUSHPULL

public static final int PUSHPULL

Represents a GPIO Push/Pull output mode. The GPIO's output state is undefined.

See Also:

setMode(int, int), getMode(int), Constant Field Values

PUSHPULL_HIGH

public static final int PUSHPULL_HIGH

Represents a GPIO Push/Pull output mode. The GPIO's output state is "LOW".

See Also:

setMode(int, int), getMode(int), Constant Field Values

PUSHPULL_LOW

public static final int PUSHPULL_LOW

Represents a GPIO Push/Pull output mode. The GPIO's output state is "LOW".

See Also:

setMode(int, int), getMode(int), Constant Field Values

Method Detail

getMode

public static int getMode(int channel)

Gets the mode of the given pin. The GPIO channel has to be chosen from the tables above. Returned mode is a combination of input or output mode identifier and a pin level representation.

Parameters:

channel - logical identification number of the pin

Returns:

the current mode

See Also:

setMode(int channel, int mode), FLOATING, PULLUP, OPENDRAIN, OPENDRAIN_LOW, OPENDRAIN_HIGH, PUSHPULL, PUSHPULL_LOW, PUSHPULL_HIGH

getState

public static boolean getState(int channel)

Gets the state of a single IO-Pin. The GPIO channel has to be chosen from the tables above.

Parameters:

channel - logical identification number of the pin

Returns:

the level of the selected pin, equals HIGH or LOW.

See Also:

HIGH, LOW

setMode

public static void setMode(int channel,
                           int mode)

Sets the mode of the given pin. The GPIO channel has to be chosen from the tables above. mode is either an input mode identifier or a combination of output mode identifier and a pin level representation.

Parameters:

channel - logical identification number of the pin

mode - a constant or combination of constants, defined in this class

See Also:

getMode(int), FLOATING, PULLUP, OPENDRAIN, OPENDRAIN_LOW, OPENDRAIN_HIGH, PUSHPULL, PUSHPULL_LOW, PUSHPULL_HIGH

setState

public static void setState(int channel,
                            boolean state)

Sets a single IO-Pin. The GPIO channel has to be chosen from the tables above. The channel has to be in output mode.

Parameters:

channel - logical identification number of the pin

state - decides, if the Pin is to be turned ON or OFF

See Also:

HIGH, LOW, setMode(int, int)