Read data from serial device
Simulink Support Package for Raspberry Pi Hardware / Communication
Read data from a serial device connected to the Raspberry Pi™ hardware.
Refer to Asynchronous Serial Communication for information. To open the pin map of the Raspberry Pi board, click the View pin map button.
Data— Output port to read data
The data port through which the block reads the data from the serial device.
Status— Output port to emit the status of the data read
The output port that emits status of the data read. The following table lists the possible status values and their description.
|Status Value||Status Description|
Board— The specific board used for serial communication
Select the specific board that you are using. Changing the board updates the pin choices that you get.
Port— The port at which you want to connect to the serial device
The port to which to you want to connect from the selected Raspberry Pi board to the serial device. For Pi 3 Model B board, the default serial port is /dev/ttyS0.
Baudrate (in bits/s)— Bits per second
Select the rate at which the data is read over the serial line. The baudrate is measured as the number of bits read per second.
Parity— Even parity or the odd parity added to the data used for error detection
Select the parity added to the data transmitted. A parity bit is used to detect error in data transmission.
None – None value in this parameter means that no parity is used for error detection in the data transmission.
Even parity – The parity bit value is 1, if the number of bits with value as 1 is odd. The parity bit value is 0, if the number of bits with value as 1 is even.
Odd parity – The parity bit value is 1, if the number of bits with value as 1 is even. The parity bit value is 0, if the number of bits with value as 1 is odd.
Stop bits— The bit used as the stop bit
Select the bit used as the stop bit in the data transmission. A stop bit marks the end of a unit of transmission.
Data length (N)— Data length for transmission
Enter the data size that you want to read from the serial device for the selected data type.
Data type— Data type for transmission
Select the data type you want to transmit.
Sample time— Time frequency at which block reads data
Specify how often this block reads the serial data. Enter a value greater than zero.