Component: IO Expander (PCF8575) (PCF8575) (General Input): Difference between revisions
No edit summary |
No edit summary |
||
| Line 17: | Line 17: | ||
==Component Source Code== | ==Component Source Code== | ||
Please click here | Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_IOEXP_PCF8575.fcfx FC_Comp_Source_IOEXP_PCF8575.fcfx] | ||
==Detailed description== | ==Detailed description== | ||
| Line 40: | Line 42: | ||
==Examples== | ==Examples== | ||
| Line 62: | Line 66: | ||
==Macro reference== | ==Macro reference== | ||
{| 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;" | '''ReadPort''' | |||
|- | |||
| colspan="2" | Reads the current input value of the I/O pins. | |||
|- | |||
|- | |||
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u16-icon.png]] - UINT | |||
| width="90%" style="border-top: 2px solid #000;" | ''Return'' | |||
|} | |||
{| 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;" | '''WritePort''' | |||
|- | |||
| colspan="2" | Writes an output value to the IO pins | |||
|- | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-u16-icon.png]] - UINT | |||
| width="90%" | Value | |||
|- | |||
| colspan="2" | Value to write. Range 0-65535 | |||
|- | |||
| 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'' | |||
|} | |||
{| 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;" | '''Initialise''' | |||
|- | |||
| colspan="2" | | |||
|- | |||
|- | |||
| 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'' | |||
|} | |||
==Property reference== | |||
{| class="wikitable" style="width:60%; background-color:#FFFFFF;" | |||
|- | |||
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]] | |||
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties''' | |||
|- | |||
|- | |||
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]] | |||
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | I²C Communications | |||
|- | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |||
| width="90%" | Device Type | |||
|- | |||
| colspan="2" | | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |||
| width="90%" | External Address | |||
|- | |||
| colspan="2" | Selects the value of the three address pins for the MCP23S17. | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |||
| width="90%" | Channel | |||
|- | |||
| colspan="2" | Channel selection | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]] | |||
| width="90%" | Stop Delay | |||
|- | |||
| colspan="2" | On older microcontroller devices there is a potential for the I2C hardware channel to lock up if there is not a 10ms delay between an I2C stop event and the next I2C start event. Most modern microcontrollers will not have a problem so this property can be disabled to speed up the I2C communications. | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |||
| width="90%" | Baud Select | |||
|- | |||
| colspan="2" | Baud rate option selector | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-14-icon.png]] | |||
| width="90%" | Baud Rate | |||
|- | |||
| colspan="2" | Baud rate to be used | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]] | |||
| width="90%" | SDA | |||
|- | |||
| colspan="2" | Pin used for SDA (data signal) | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-5-icon.png]] | |||
| width="90%" | SCL | |||
|- | |||
| colspan="2" | Pin used for SCL (clock signal) | |||
|- | |||
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]] | |||
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation | |||
|- | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-10-icon.png]] | |||
| width="90%" | Label | |||
|- | |||
| colspan="2" | | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]] | |||
| width="90%" | Scope Traces | |||
|- | |||
| colspan="2" | Selects if the scope traces are automatically generated or not | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-7-icon.png]] | |||
| width="90%" | Console Data | |||
|- | |||
| colspan="2" | Selects if the console data is automatically generated or not | |||
|- | |||
| width="10%" align="center" | [[File:Fc9-type-16-icon.png]] | |||
| width="90%" | API | |||
|- | |||
| colspan="2" | | |||
|}==Macro reference== | |||
{| class="wikitable" style="width:60%; background-color:#FFFFFF;" | {| class="wikitable" style="width:60%; background-color:#FFFFFF;" | ||
Revision as of 15:15, 20 January 2023
| Author | Matrix TSL |
| Version | 1.0 |
| Category | General Input |
IO Expander (PCF8575) component
Provides 16 digital input/output pins arranged into 8-bit ports using a I2C bus connection. Up to eight expanders can be connected to the same I2C peripheral by means of three address pins. Supports the PCF8575 device allowing up to 8 expanders to be connected to the same I2C bus.
Component Source Code
Please click here to view the component source code (Beta): FC_Comp_Source_IOEXP_PCF8575.fcfx
Detailed description
No detailed description exists yet for this component
Examples
No additional examples
Macro reference
|
ReadPort |
| Reads the current input value of the I/O pins. | |
 - UINT
|
Return |
|
|
WritePort |
| Writes an output value to the IO pins | |
| - UINT
|
Value |
| Value to write. Range 0-65535 | |
 - VOID
|
Return |
|
|
Initialise |
| - VOID
|
Return |
Property reference
|
Properties |
|
I²C Communications |
|
Device Type |
|
|
External Address |
| Selects the value of the three address pins for the MCP23S17. | |
|
|
Channel |
| Channel selection | |
|
Stop Delay |
| On older microcontroller devices there is a potential for the I2C hardware channel to lock up if there is not a 10ms delay between an I2C stop event and the next I2C start event. Most modern microcontrollers will not have a problem so this property can be disabled to speed up the I2C communications. | |
|
|
Baud Select |
| Baud rate option selector | |
|
Baud Rate |
| Baud rate to be used | |
|
SDA |
| Pin used for SDA (data signal) | |
|
|
SCL |
| Pin used for SCL (clock signal) | |
|
|
Simulation |
|
Label |
|
|
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 |
==Macro reference==
|
|
ReadPort |
| Reads the current input value of the I/O pins. | |
| - UINT
|
Return |
|
|
WritePort |
| Writes an output value to the IO pins | |
| - UINT
|
Value |
| Value to write. Range 0-65535 | |
| - VOID
|
Return |
|
|
Initialise |
| - VOID
|
Return |
Property reference
|
|
Properties |
|
|
I²C Communications |
|
|
Device Type |
|
|
External Address |
| Selects the value of the three address pins for the MCP23S17. | |
|
|
Channel |
| Channel selection | |
|
|
Stop Delay |
| On older microcontroller devices there is a potential for the I2C hardware channel to lock up if there is not a 10ms delay between an I2C stop event and the next I2C start event. Most modern microcontrollers will not have a problem so this property can be disabled to speed up the I2C communications. | |
|
|
Baud Select |
| Baud rate option selector | |
|
|
Baud Rate |
| Baud rate to be used | |
|
|
SDA |
| Pin used for SDA (data signal) | |
|
|
SCL |
| Pin used for SCL (clock signal) | |
|
|
Simulation |
|
|
Label |
|
|
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 |