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| width="20%" style="color: gray;" | Author
| width="20%" style="color:gray;" | Author
| Matrix TSL
| Matrix TSL
|-
|-
| width="20%" style="color: gray;" | Version
| width="20%" style="color:gray;" | Version
| 1.0 (Release)
| 1.0
|-
|-
| width="20%" style="color: gray;" | Category
| width="20%" style="color:gray;" | Category
| E-blocks 2
| E-blocks 2
|}
|}




 
==IO Expander component==
==[[File:Component Icon e565ab5d_bf80_4911_938a_75b226ca6f93.png|Image]] IO Expander (BL0155) component==
Provides 16 digital input/output pins arranged into two 8-bit E-block 2 ports using a SPI bus connection.
Provides 16 digital input/output pins arranged into two 8-bit E-block 2 ports using a SPI bus connection.


Before you can start reading or writing data to the different registers or ports, you need to use a macro to initialise the IO expander. There are component macros in flowcode 8 which allow you to write a value to a register on the expander, to write a value to an individual port or even to an individual pin on a port. You can also read values from all these places using component macros as well.
==Component Source Code==


You also need to ensure that all pins in flowcode are connected to the equivalent ones on your E-blocks 2 upstream board for it to work when you compile it to the chip.
Please click here for the component source code: [https://www.flowcode.co.uk/wikicopy/componentsource/FC_Comp_Source_EBlocks2_IOEXP_BL0155.fcfx FC_Comp_Source_EBlocks2_IOEXP_BL0155.fcfx]


==Examples==
==Detailed description==
''<span style="color:red;">No additional examples</span>''


''No detailed description exists yet for this component''


==Downloadable macro reference==
==Examples==


===<span style="font-weight: normal;"><u><tt>ReadPort</tt></u></span>===
Reads a value to one of the ports with a mask.


Configures the masked bits to be inputs before reading the input value.
''<span style="color:red;">No additional examples</span>''


'''Parameters'''


:[[Variable Types|BYTE]] ''Port''
==Downloadable macro reference==
::0=PortA, 1=PortB


:[[Variable Types|BYTE]] ''Mask''
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
::Allows port bits to be modified without effecting other bits, 255 = write full port.
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''ReadPort'''
|-
| colspan="2" | Reads a value to one of the ports with a mask. Configures the masked bits to be inputs before reading the input value.&nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Port
|-
| colspan="2" | 0=PortA, 1=PortB&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Mask
|-
| colspan="2" | Allows port bits to be modified without effecting other bits, 255 = write full port.&nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}




'''Return value'''
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''ConfigureInversion'''
|-
| colspan="2" | Configures the pin inversion for the two ports.  Disabled on all pins by default.&nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | PortA
|-
| colspan="2" | Port A inversion sent as an 8-bit value, 0 = Disabled, 1 = Enabled&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | PortB
|-
| colspan="2" | Port B inversion sent as an 8-bit value, 0 = Disabled, 1 = Enabled&nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


:[[Variable Types|BYTE]]


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''ReadPortPin'''
|-
| colspan="2" | Reads a single port pin from one of the ports. Configures the pins to be an input before reading the input value. Returns 0 or 1 corresponding to the value on the port pin.&nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Port
|-
| colspan="2" | 0=PortA, 1=PortB&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Pin
|-
| colspan="2" | Port pin to read. Range: 0-7&nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


===<span style="font-weight: normal;"><u><tt>ConfigureInversion</tt></u></span>===
Configures the pin inversion for the two ports.


Disabled on all pins by default.
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''WritePortPin'''
|-
| colspan="2" | Writes a single port pin on one of the ports. Configures the pins to be an output before writing the input value. &nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Port
|-
| colspan="2" | 0=PortA, 1=PortB&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Pin
|-
| colspan="2" | Port pin to read. Range: 0-7&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Value
|-
| colspan="2" | Value to output on the selected pin. Range: 0-1&nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


'''Parameters'''


:[[Variable Types|BYTE]] ''PortA''
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
::Port A inversion sent as an 8-bit value, 0 = Disabled, 1 = Enabled
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''WritePort'''
|-
| colspan="2" | Writes a value to one of the ports with a mask. Configures the masked bits to be outputs before writing the output value.&nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Port
|-
| colspan="2" | 0=PortA, 1=PortB&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Mask
|-
| colspan="2" | Allows port bits to be modified without effecting other bits, 255 = write full port.&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Value
|-
| colspan="2" | Value to write. Range 0-255&nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


:[[Variable Types|BYTE]] ''PortB''
::Port B inversion sent as an 8-bit value, 0 = Disabled, 1 = Enabled


{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''ConfigurePullups'''
|-
| colspan="2" | Configures the pullups for the two ports. Disabled on all pins by default.&nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | PortA
|-
| colspan="2" | Port A pull ups sent as an 8-bit value, 0 = Disabled, 1 = Enabled&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | PortB
|-
| colspan="2" | Port B pull ups sent as an 8-bit value, 0 = Disabled, 1 = Enabled&nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


'''Return value'''


:''This call does not return a value''
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''ReadRegister'''
|-
| colspan="2" | Reads an 8-bit value from a register on the I/O expander device.&nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Address
|-
| colspan="2" | Register address to write to. Range: 0-15&nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}




===<span style="font-weight: normal;"><u><tt>ReadPortPin</tt></u></span>===
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
Reads a single port pin from one of the ports.
|-
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''WriteRegister'''
|-
| colspan="2" | Writes an 8-bit value to a register on the I/O expander device.&nbsp;
|-
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Address
|-
| colspan="2" | Register address to write to. Range: 0-15&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
| width="90%" | Value
|-
| colspan="2" | Value to write. Range: 0-255&nbsp;
|-
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
| width="90%" style="border-top: 2px solid #000;" | ''Return''
|}


Configures the pins to be an input before reading the input value.


Returns 0 or 1 corresponding to the value on the port pin.
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
'''Parameters'''
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
:[[Variable Types|BYTE]] ''Port''
|-
::0=PortA, 1=PortB
| colspan="2" | &nbsp;
 
|-
:[[Variable Types|BYTE]] ''Pin''
|-
::Port pin to read. Range: 0-7
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
|}
'''Return value'''


:[[Variable Types|BYTE]]


===<span style="font-weight: normal;"><u><tt>WritePortPin</tt></u></span>===
Writes a single port pin on one of the ports.
Configures the pins to be an output before writing the input value.
'''Parameters'''
:[[Variable Types|BYTE]] ''Port''
::0=PortA, 1=PortB
:[[Variable Types|BYTE]] ''Pin''
::Port pin to read. Range: 0-7
:[[Variable Types|BYTE]] ''Value''
::Value to output on the selected pin. Range: 0-1
'''Return value'''
:''This call does not return a value''
===<span style="font-weight: normal;"><u><tt>WritePort</tt></u></span>===
Writes a value to one of the ports with a mask.
Configures the masked bits to be outputs before writing the output value.
'''Parameters'''
:[[Variable Types|BYTE]] ''Port''
::0=PortA, 1=PortB
:[[Variable Types|BYTE]] ''Mask''
::Allows port bits to be modified without effecting other bits, 255 = write full port.
:[[Variable Types|BYTE]] ''Value''
::Value to write. Range 0-255
'''Return value'''
:''This call does not return a value''
===<span style="font-weight: normal;"><u><tt>ConfigurePullups</tt></u></span>===
Configures the pullups for the two ports.
Disabled on all pins by default.
'''Parameters'''
:[[Variable Types|BYTE]] ''PortA''
::Port A pull ups sent as an 8-bit value, 0 = Disabled, 1 = Enabled
:[[Variable Types|BYTE]] ''PortB''
::Port B pull ups sent as an 8-bit value, 0 = Disabled, 1 = Enabled
'''Return value'''
:''This call does not return a value''
===<span style="font-weight: normal;"><u><tt>ReadRegister</tt></u></span>===
Reads an 8-bit value from a register on the I/O expander device.
'''Parameters'''
:[[Variable Types|BYTE]] ''Address''
::Register address to write to. Range: 0-15
'''Return value'''
:[[Variable Types|BYTE]]
===<span style="font-weight: normal;"><u><tt>WriteRegister</tt></u></span>===
Writes an 8-bit value to a register on the I/O expander device.
'''Parameters'''
:[[Variable Types|BYTE]] ''Address''
::Register address to write to. Range: 0-15
:[[Variable Types|BYTE]] ''Value''
::Value to write. Range: 0-255
'''Return value'''
:''This call does not return a value''
===<span style="font-weight: normal;"><u><tt>Initialise</tt></u></span>===
''<span style="color:red;">No additional information</span>''
'''Parameters'''
:''This macro has no parameters''
'''Return value'''
:''This call does not return a value''
==Simulation macro reference==
''This component does not contain any simulation macros''




==Property reference==
==Property reference==
<span style="font-weight: normal;"><u>Channel</u></span>


This property is of type ''Fixed list of ints'' and can be referenced with the variable name ''cal_spi1::CHANNEL''.
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
SPI Channel selector
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]]
 
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties'''  
<span style="font-weight: normal;"><u>Prescale</u></span>
|-
 
|-
This property is of type ''Fixed list of ints'' and can be referenced with the variable name ''cal_spi1::PR_SCALE''.
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
 
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | SPI Communications
Prescale option selector
|-
 
|-
<span style="font-weight: normal;"><u>MOSI</u></span>
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
 
| width="90%" | External Address
This property is of type ''Single digital pin'' and can be referenced with the variable name ''cal_spi1::MOSI''.
|-
 
| colspan="2" | Selects the value of the three address pins for the MCP23S17.&nbsp;
SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode.
|-
 
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
<span style="font-weight: normal;"><u>MISO</u></span>
| width="90%" | Channel
 
|-
This property is of type ''Single digital pin'' and can be referenced with the variable name ''cal_spi1::MISO''.
| colspan="2" | SPI Channel selector&nbsp;
 
|-
SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode.
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
 
| width="90%" | Prescale
<span style="font-weight: normal;"><u>CLK</u></span>
|-
 
| colspan="2" | Prescale option selector&nbsp;
This property is of type ''Single digital pin'' and can be referenced with the variable name ''cal_spi1::CLK''.
|-
 
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
SPI Clock Pin CLK - The Clock signal is driven by the SPI master.
| width="90%" | MOSI
 
|-
<span style="font-weight: normal;"><u>CS / SS</u></span>
| colspan="2" | SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode.&nbsp;
 
|-
This property is of type ''Single digital pin'' and can be referenced with the variable name ''cal_spi1::SS''.
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
 
| width="90%" | MISO
Chip Select / Slave Select Pin  
|-
 
| colspan="2" | SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode.&nbsp;
Master Mode: General purpose output pin used to select the remote SPI device.
|-
 
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
Slave Mode: Hardware chip select pin input used to select the SPI device.
| width="90%" | CLK
 
|-
<span style="font-weight: normal;"><u>Reset Pin</u></span>
| colspan="2" | SPI Clock Pin CLK - The Clock signal is driven by the SPI master.&nbsp;
 
|-
This property is of type ''Single digital pin'' and can be referenced with the variable name ''reset_pin''.
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
 
| width="90%" | CS / SS
''<span style="color:red;">No additional information</span>''
|-
 
| colspan="2" | Chip Select / Slave Select Pin Master Mode: General purpose output pin used to select the remote SPI device. Slave Mode: Hardware chip select pin input used to select the SPI device. &nbsp;
 
|-
 
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]]
<span style="font-weight: normal;"><u>Label</u></span>
| width="90%" | Reset Pin
 
|-
This property is of type ''Line of text'' and can be referenced with the variable name ''label''.
| colspan="2" | &nbsp;
 
|-
''<span style="color:red;">No additional information</span>''
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
 
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation
 
|-
 
|-
<span style="font-weight: normal;"><u>Scope Traces</u></span>
| width="10%" align="center" | [[File:Fc9-type-10-icon.png]]
 
| width="90%" | Label
This property is of type ''True or false'' and can be referenced with the variable name ''cal_spi1::ScopeTraces''.
|-
 
| colspan="2" | &nbsp;
Selects if the scope traces are automatically generated or not
|-
 
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
<span style="font-weight: normal;"><u>Console Data</u></span>
| width="90%" | Show Comms Flasher
 
|-
This property is of type ''True or false'' and can be referenced with the variable name ''cal_spi1::ConsoleData''.
| colspan="2" | &nbsp;
 
|-
Selects if the console data is automatically generated or not
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
 
| width="90%" | Scope Traces
<span style="font-weight: normal;"><u>Injector</u></span>
|-
 
| colspan="2" | Selects if the scope traces are automatically generated or not&nbsp;
This property is of type ''Fixed list of ints'' and can be referenced with the variable name ''cal_spi1::Injector''.
|-
 
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]]
''<span style="color:red;">No additional information</span>''
| width="90%" | Console Data
|-
| colspan="2" | Selects if the console data is automatically generated or not&nbsp;
|-
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]]
| width="90%" | API
|-
| colspan="2" | &nbsp;
|}

Revision as of 14:40, 16 January 2023

Author Matrix TSL
Version 1.0
Category E-blocks 2


IO Expander component

Provides 16 digital input/output pins arranged into two 8-bit E-block 2 ports using a SPI bus connection.

Component Source Code

Please click here for the component source code: FC_Comp_Source_EBlocks2_IOEXP_BL0155.fcfx

Detailed description

No detailed description exists yet for this component

Examples

No additional examples


Downloadable macro reference

ReadPort
Reads a value to one of the ports with a mask. Configures the masked bits to be inputs before reading the input value. 
- BYTE Port
0=PortA, 1=PortB 
- BYTE Mask
Allows port bits to be modified without effecting other bits, 255 = write full port. 
- BYTE Return


ConfigureInversion
Configures the pin inversion for the two ports. Disabled on all pins by default. 
- BYTE PortA
Port A inversion sent as an 8-bit value, 0 = Disabled, 1 = Enabled 
- BYTE PortB
Port B inversion sent as an 8-bit value, 0 = Disabled, 1 = Enabled 
- VOID Return


ReadPortPin
Reads a single port pin from one of the ports. Configures the pins to be an input before reading the input value. Returns 0 or 1 corresponding to the value on the port pin. 
- BYTE Port
0=PortA, 1=PortB 
- BYTE Pin
Port pin to read. Range: 0-7 
- BYTE Return


WritePortPin
Writes a single port pin on one of the ports. Configures the pins to be an output before writing the input value.  
- BYTE Port
0=PortA, 1=PortB 
- BYTE Pin
Port pin to read. Range: 0-7 
- BYTE Value
Value to output on the selected pin. Range: 0-1 
- VOID Return


WritePort
Writes a value to one of the ports with a mask. Configures the masked bits to be outputs before writing the output value. 
- BYTE Port
0=PortA, 1=PortB 
- BYTE Mask
Allows port bits to be modified without effecting other bits, 255 = write full port. 
- BYTE Value
Value to write. Range 0-255 
- VOID Return


ConfigurePullups
Configures the pullups for the two ports. Disabled on all pins by default. 
- BYTE PortA
Port A pull ups sent as an 8-bit value, 0 = Disabled, 1 = Enabled 
- BYTE PortB
Port B pull ups sent as an 8-bit value, 0 = Disabled, 1 = Enabled 
- VOID Return


ReadRegister
Reads an 8-bit value from a register on the I/O expander device. 
- BYTE Address
Register address to write to. Range: 0-15 
- BYTE Return


WriteRegister
Writes an 8-bit value to a register on the I/O expander device. 
- BYTE Address
Register address to write to. Range: 0-15 
- BYTE Value
Value to write. Range: 0-255 
- VOID Return


Initialise
 
- VOID Return



Property reference

Properties
SPI Communications
External Address
Selects the value of the three address pins for the MCP23S17. 
Channel
SPI Channel selector 
Prescale
Prescale option selector 
MOSI
SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode. 
MISO
SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode. 
CLK
SPI Clock Pin CLK - The Clock signal is driven by the SPI master. 
CS / SS
Chip Select / Slave Select Pin Master Mode: General purpose output pin used to select the remote SPI device. Slave Mode: Hardware chip select pin input used to select the SPI device.  
Reset Pin
 
Simulation
Label
 
Show Comms Flasher
 
Scope Traces
Selects if the scope traces are automatically generated or not 
Console Data
Selects if the console data is automatically generated or not 
API
 
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