Difference between revisions of "Component: IO Expander (PCF8575) (Comms: System)"
From Flowcode Help
Jump to navigationJump to search| Line 20: | Line 20: | ||
==Detailed description== | ==Detailed description== | ||
| + | |||
| + | |||
| Line 32: | Line 34: | ||
==Examples== | ==Examples== | ||
| + | |||
| + | |||
| Line 99: | Line 103: | ||
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]] | | width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-prop-icon.png]] | ||
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Properties''' | | 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 | ||
|- | |- | ||
|- | |- | ||
| Line 141: | Line 149: | ||
| colspan="2" | Pin used for SCL (clock signal) | | colspan="2" | Pin used for SCL (clock signal) | ||
|- | |- | ||
| − | | width="10%" align="center" style="background-color:# | + | | width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]] |
| − | | width="90%" style="background-color:# | + | | width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation |
| − | |||
| − | |||
| − | |||
| − | |||
|- | |- | ||
|- | |- | ||
Latest revision as of 17:20, 9 November 2022
| Author | Matrix TSL |
| Version | 1.0 |
| Category | Comms: System |
Contents
IO Expander 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 Pack
COMMSA
Detailed description
No detailed description exists yet for this component
Examples
No additional examples
Downloadable 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 |
