Class Sc16is7x2
Represents an Sc16is7x2 SPI/I2C dual UART (with 8 GPIO's)
Assembly: Sc16is7x2.dll
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public abstract class Sc16is7x2 : ISerialController, IDigitalInputOutputController, IDigitalInputController, IDigitalOutputController, IPinController, II2cPeripheral, ISpiPeripheral
Derived:
Meadow.Foundation.ICs.IOExpanders.Sc16is752
Implements:
Meadow.Hardware.ISerialController, Meadow.Hardware.IDigitalInputOutputController, Meadow.Hardware.IDigitalInputController, Meadow.Hardware.IDigitalOutputController, Meadow.Hardware.IPinController, Meadow.Hardware.II2cPeripheral, Meadow.Hardware.ISpiPeripheral
Properties
PortA
The port name for Port A
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public Sc16is7x2.Sc16SerialPortName PortA { get; }
PortB
The port name for Port B
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public Sc16is7x2.Sc16SerialPortName PortB { get; }
Pins
03.12.2023: Sc16is7x2 pin definitions for GPIO pins.
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public Sc16is7x2.PinDefinitions Pins { get; }
DefaultI2cAddress
The default I2C address for the peripheral
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public byte DefaultI2cAddress { get; }
MaxI2cBusSpeed
The maximum I2C bus speed for the peripheral
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public I2cBusSpeed MaxI2cBusSpeed { get; }
DefaultSpiBusMode
The default SPI bus mode for the peripheral
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public SpiClockConfiguration.Mode DefaultSpiBusMode { get; }
DefaultSpiBusSpeed
The default SPI bus frequency for the peripheral
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public Frequency DefaultSpiBusSpeed { get; }
SpiBusMode
The current SPI bus mode for the peripheral
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public SpiClockConfiguration.Mode SpiBusMode { get; set; }
SpiBusSpeed
The current SPI bus frequency for the peripheral
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public Frequency SpiBusSpeed { get; set; }
Methods
CreateSerialPort(SerialPortName, int, int, Parity, StopBits, int)
Creates an RS232 Serial Port
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public ISerialPort CreateSerialPort(SerialPortName portName, int baudRate = 9600, int dataBits = 8, Parity parity = Parity.None, StopBits stopBits = StopBits.One, int readBufferSize = 1024)
Returns
Meadow.Hardware.ISerialPort
Parameters
| Type | Name | Description |
|---|---|---|
Meadow.Hardware.SerialPortName | portName | The Sc16SerialPortName name of the channel to create |
System.Int32 | baudRate | The baud rate used in communication |
System.Int32 | dataBits | The data bits used in communication |
Meadow.Hardware.Parity | parity | The parity used in communication |
Meadow.Hardware.StopBits | stopBits | The stop bits used in communication |
System.Int32 | readBufferSize | The software FIFO read buffer size. (Not the 64 bytes on chip FIFO) |
CreateRs485SerialPort(Sc16SerialPortName, int, int, Parity, StopBits, bool)
Creates an RS485 Serial Port
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public ISerialPort CreateRs485SerialPort(Sc16is7x2.Sc16SerialPortName portName, int baudRate = 9600, int dataBits = 8, Parity parity = Parity.None, StopBits stopBits = StopBits.One, bool invertDE = false)
Returns
Meadow.Hardware.ISerialPort
Parameters
| Type | Name | Description |
|---|---|---|
| Meadow.Foundation.ICs.IOExpanders.Sc16is7x2.Sc16SerialPortName | portName | The Sc16SerialPortName name of the channel to create |
System.Int32 | baudRate | The baud rate used in communication |
System.Int32 | dataBits | The data bits used in communication |
Meadow.Hardware.Parity | parity | The parity used in communication |
Meadow.Hardware.StopBits | stopBits | The stop bits used in communication |
System.Boolean | invertDE | Set to true to invert the logic (active high) driver enable output signal |
CreateDigitalInputPort(IPin, ResistorMode)
Create a digital input port on a SC16IS7x2 IO expander.
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public IDigitalInputPort CreateDigitalInputPort(IPin pin, ResistorMode resistorMode = ResistorMode.Disabled)
Returns
Meadow.Hardware.IDigitalInputPort
Parameters
| Type | Name | Description |
|---|---|---|
Meadow.Hardware.IPin | pin | The GPIO pin to use. |
Meadow.Hardware.ResistorMode | resistorMode | SC16IS7x2 GPIO's does not support pullup or pulldown on inputs. |
Exceptions
System.Exception
SetPortDirection(IPin, PortDirectionType)
Sets the direction of a port
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public void SetPortDirection(IPin pin, PortDirectionType direction)
Parameters
| Type | Name | Description |
|---|---|---|
Meadow.Hardware.IPin | pin | The pin representing the port |
Meadow.Hardware.PortDirectionType | direction | The port direction (input or output) |
ReadPort(IPin)
Gets the value of a particular port.
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public bool ReadPort(IPin pin)
Returns
System.Boolean
Parameters
| Type | Name |
|---|---|
Meadow.Hardware.IPin | pin |
CreateDigitalOutputPort(IPin, bool, OutputType)
Create a digital output port on a SC16IS7x2 IO expander.
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public IDigitalOutputPort CreateDigitalOutputPort(IPin pin, bool initialState = false, OutputType outputType = OutputType.PushPull)
Returns
Meadow.Hardware.IDigitalOutputPort
Parameters
| Type | Name | Description |
|---|---|---|
Meadow.Hardware.IPin | pin | The GPIO pin to use. |
System.Boolean | initialState | Initial state. Either true or false. |
Meadow.Hardware.OutputType | outputType | Always push/pull on SC16IS7x2. |
Exceptions
System.NotImplementedException
GetInterruptSource()
Get the Interrupt Identification Register (IIR) value.
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public byte GetInterruptSource()
Returns
System.Byte
GetInterruptSourceType(byte)
Get the interrupt source type from the IIR register value. (Interrupt Identification Register) Ref. page 14 and 24 in datasheet. Mostly for debugging. Not sure if multiple sources can be active at the same time. If so, this will need to be modified.
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public Sc16is7x2.InterruptSourceType GetInterruptSourceType(byte iir)
Returns
Meadow.Foundation.ICs.IOExpanders.Sc16is7x2.InterruptSourceType
Parameters
| Type | Name | Description |
|---|---|---|
System.Byte | iir | The IIR register value. (Interrupt Identification Register) |
IsValidPin(IPin)
Is the pin valid for this device instance
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protected bool IsValidPin(IPin pin)
Returns
System.Boolean: True if pin is valid
Parameters
| Type | Name | Description |
|---|---|---|
Meadow.Hardware.IPin | pin | The IPin to validate |
PrintAddressContent()
Print the content of the address space for debugging purposes.
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public void PrintAddressContent()
ByteToBinaryString(byte)
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public string ByteToBinaryString(byte b)
Returns
System.String
Parameters
| Type | Name |
|---|---|
System.Byte | b |
Implements
Meadow.Hardware.ISerialControllerMeadow.Hardware.IDigitalInputOutputControllerMeadow.Hardware.IDigitalInputControllerMeadow.Hardware.IDigitalOutputControllerMeadow.Hardware.IPinControllerMeadow.Hardware.II2cPeripheralMeadow.Hardware.ISpiPeripheral