Component: API (RPI) (API Slave Devices)
From Flowcode Help
Jump to navigationJump to search| Author | Matrix TSL |
| Version | 2.0 |
| Category | API Slave Devices |
Contents
- 1 API (RPI) component
- 2 Component Source Code
- 3 Detailed description
- 4 Examples
- 5 Macro reference
- 5.1 ADCSample10
- 5.2 ADCSample8
- 5.3 I2CInitialise
- 5.4 I2CReceive
- 5.5 I2CRestart
- 5.6 I2CSend
- 5.7 I2CStart
- 5.8 I2CStop
- 5.9 I2CTransInit
- 5.10 I2CTransReceive
- 5.11 I2CTransSend
- 5.12 IOGetInputPin
- 5.13 IOSetOutputPin
- 5.14 Initialise
- 5.15 PWMDisable
- 5.16 PWMEnable
- 5.17 PWMSetDuty
- 5.18 PWMSetPrescaler
- 5.19 SPIInitialise
- 5.20 SPIPrescaler
- 5.21 SPITransfer
- 5.22 SPITransferTrans
- 5.23 UARTBaud
- 5.24 UARTCheckRX
- 5.25 UARTInitialise
- 5.26 UARTReceive
- 5.27 UARTSend
- 6 Property reference
API (RPI) component
Connects to a Raspberry Pi running the API Firmware allowing the board to become a slave to the Flowcode Embedded simulation or Flowcode App Developer. Supports: Digital IO / I2C / SPI / PWM / UART See Flowcode Help Wiki for firmware.
Component Source Code
Please click here to download the component source project: FC_Comp_Source_RPI_API_Comp.fcfx
Please click here to view the component source code (Beta): FC_Comp_Source_RPI_API_Comp.fcfx
Detailed description
The App Developer (RaspberryPi) component allows an Raspberry Pi to be controlled from within the Flowcode simulation runtime.
To allow Flowcode to communicate and control the Raspberry Pi hardware the board must first be pre-programmed with dedicated firmware.
The firmware file and Flowcode source project can be downloaded from here.
More information about the workings of the firmware project can be found on the FiniteStateMachine page.
The IP Address to the Raspberry Pi hardware is selected via the SCADA_RPI component IP Address property.
When building the component into a App Developer project remember to expose the IP Address property to allow the end user to select the correct address for the hardware.
The console window can display data in two modes which is set via a component property.
- fixed statistics showing IO / ADC inputs / PWM
- scrolling log showing all commands and returns
Examples
Pin Mapping
Here is a table showing how the App Developer Slave digital pins are mapped on the device.
| App Developer Slave Digital Pin | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| Device Port Pin | G2 | G3 | G4 | G5 | G6 | G7 | G8 | G9 | G10 | G11 | G12 | G13 | G14 | G15 | G16 | G17 | G18 | G19 | G20 | G21 | G22 | G23 | G24 | G25 | G26 | G27 |
Here is a table showing how the App Developer Slave peripheral pins are mapped on the device.
| App Developer Slave Peripheral Pin | I2C SDA | I2C SCL | SPI MOSI | SPI MISO | SPI SCK | UART RX | UART TX | PWM 0 | PWM 1 |
| Device Port Pin | G2 | G3 | G10 | G9 | G11 | G15 | G14 | G12 | G13 |
Macro reference
ADCSample10
|
ADCSample10 |
| Reads the voltage present on an Alanog pin as an 10-bit value range 0-1023 | |
 - BYTE
|
ADCChannel |
| Range: 0-12 | |
 - UINT
|
Return |
ADCSample8
|
|
ADCSample8 |
| Reads the voltage present on an Alanog pin as an 8-bit value range 0-255 | |
| - BYTE
|
ADCChannel |
| Range: 0-12 | |
| - BYTE
|
Return |
I2CInitialise
|
|
I2CInitialise |
| Initialsie the I2C module ready for communications | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - I2C Bus Count - 1 | |
| - BYTE
|
Baud |
| 0=100KHz, 1=400KHz, 2=1MHz | |
 - VOID
|
Return |
I2CReceive
|
|
I2CReceive |
| Receive a byte using the I2C bus | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - I2C Bus Count - 1 | |
 - BOOL
|
Last |
| Last byte to receive: Range 0-1 | |
| - BYTE
|
Return |
I2CRestart
|
|
I2CRestart |
| Put the I2C Module into Restart mode | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - I2C Bus Count - 1 | |
| - VOID
|
Return |
I2CSend
|
|
I2CSend |
| Transmit a byte using the I2C bus | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - I2C Bus Count - 1 | |
| - BYTE
|
DataOut |
| - BOOL
|
Return |
I2CStart
|
|
I2CStart |
| Put the I2C Module into Start mode | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - I2C Bus Count - 1 | |
| - VOID
|
Return |
I2CStop
|
|
I2CStop |
| Put the I2C Module into Stop mode | |
| - BYTE
|
Channel |
| - VOID
|
Return |
I2CTransInit
|
|
I2CTransInit |
| Initialises the I2C Transaction mode with the 7-bit device address | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - I2C Bus Count - 1 | |
| - BYTE
|
DeviceAddress |
| 7-bit Device Address | |
| - BYTE
|
Baud |
| 0=100KHz, 1=400KHz, 2=1MHz | |
| - VOID
|
Return |
I2CTransReceive
|
|
I2CTransReceive |
| Receives an I2C Transaction on the selected I2C channel. Returns the number of bytes received. | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - I2C Bus Count - 1 | |
| - BYTE
|
Data |
| Data variable to receive into | |
| - UINT
|
Count |
| Number of bytes to receive | |
| - UINT
|
Return |
I2CTransSend
|
|
I2CTransSend |
| Sends an I2C Transaction on the selected I2C channel. Returns the number of bytes sent. | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - I2C Bus Count - 1 | |
| - BYTE
|
Data |
| Data to send | |
| - UINT
|
Count |
| Number of bytes to send out, MS bit 0x8000 signifies no Stop if set | |
| - UINT
|
Return |
IOGetInputPin
|
|
IOGetInputPin |
| Sets the selected digital pin to an input and reads the input state. | |
| - BYTE
|
Pin |
| Range: 0-29 | |
| - BOOL
|
Return |
IOSetOutputPin
|
|
IOSetOutputPin |
| Sets the selected digital pin to an output and assigns the output state. | |
| - BYTE
|
Pin |
| Range: 0-29 | |
| - BOOL
|
State |
| Range: 0-1 | |
| - VOID
|
Return |
Initialise
|
|
Initialise |
| Initialise the comms to the Arduino board ready for commands to be sent. | |
| - VOID
|
Return |
PWMDisable
|
|
PWMDisable |
| Disable a PWM output | |
| - BYTE
|
Channel |
| Range: 0-1 | |
| - VOID
|
Return |
PWMEnable
|
|
PWMEnable |
| Enable a PWM output | |
| - BYTE
|
Channel |
| Range: 0-1 | |
| - VOID
|
Return |
PWMSetDuty
|
|
PWMSetDuty |
| Sets the duty for the PWM output | |
| - BYTE
|
Channel |
| Range: 0-5 | |
| - BYTE
|
Duty |
| - VOID
|
Return |
PWMSetPrescaler
|
|
PWMSetPrescaler |
| Sets the prescaler for the PWM output | |
| - BYTE
|
Channel |
| - BYTE
|
Prescaler |
| - BYTE
|
Period |
| - VOID
|
Return |
SPIInitialise
|
|
SPIInitialise |
| Initialsie the SPI module ready for communications | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - SPI Bus Count - 1 | |
| - VOID
|
Return |
SPIPrescaler
|
|
SPIPrescaler |
| Modify the speed of the SPI bus | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - SPI Bus Count - 1 | |
| - BYTE
|
Prescaler |
| Range: 0-2 | |
| - VOID
|
Return |
SPITransfer
|
|
SPITransfer |
| Transfer a byte using the SPI bus | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - SPI Bus Count - 1 | |
| - BYTE
|
DataOut |
| - BYTE
|
Return |
SPITransferTrans
|
|
SPITransferTrans |
| Transfer an array of bytes using the SPI bus | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - SPI Bus Count - 1 | |
| - UINT
|
Count |
| Number of bytes to send and receive | |
| - BYTE
|
DataOut |
| Outgoing data | |
| - BYTE
|
DataIn |
| Incoming data | |
| - VOID
|
Return |
UARTBaud
|
|
UARTBaud |
| Control the communications rate of the UART module | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - UART Bus Count - 1 | |
| - BYTE
|
Rate |
| 0=1200, 1=2400, 2=4800, 3=9600, 4=19200, 5=38400, 6=57600, 7=115200 | |
| - VOID
|
Return |
UARTCheckRX
|
|
UARTCheckRX |
| Check to see if the UART module has received any data | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - UART Bus Count - 1 | |
| - BYTE
|
Return |
UARTInitialise
|
|
UARTInitialise |
| Initialise the UART module ready for communications | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - UART Bus Count - 1 | |
| - VOID
|
Return |
UARTReceive
|
|
UARTReceive |
| Receives a data byte from the UART. Recommend calling the UARTCheckRx function first to ensure data is available. | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - UART Bus Count - 1 | |
| - BYTE
|
Return |
UARTSend
|
|
UARTSend |
| Send a byte via the UART module | |
| - BYTE
|
Channel |
| Channel Index: Range 0 - UART Bus Count - 1 | |
| - BYTE
|
Data |
| Data Byte to send. Range: 0-255 | |
| - VOID
|
Return |
Property reference
|
Properties |
|
Connection |
|
RPI IP Address |
| IP Address of the Raspbery Pi we want to control | |
|
RPI Port |
| Port number we want to communicate on. Default 1234 | |
|
Network Interface |
| Some computers may have several network interfaces such as ethernet ports and wifi access. Select the correct network interface for the network you wish to connect to. Use the IP address to confirm you are connected to the right network. | |
|
|
IP Address |
| IP Address of the selected network interface. | |
|
|
API Peripherals |
|
|
Digital IO |
|
|
Analog Input |
|
|
Analog Output |
|
|
PWM Output |
|
|
I2C Bus |
|
|
SPI Bus |
|
|
UART |
|
|
SERVO |
|
|
Console |
|
Console Log |
| Create an automatic console log of the commands sent to the Arduino | |
|
|
Log Mode |
| Controls how the console data is formatted. Fixed statistics gives an easy to read overview of the IO, Analog and PWM functionality Command Log gives a more in depth analysis of the outgoing commands and incoming returns ASCII mode allows serial data to be shown in raw text form, other commands are shown as in the Command Log mode | |
