Serial Write

R2026b

Write data to serial port

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Serial Write block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
NVIDIA Jetson and NVIDIA DRIVE / Communication

Description

Add-On Required: This feature requires the MATLAB Coder Support Package for NVIDIA Jetson and NVIDIA DRIVE Platforms add-on.

Use the Serial Write block to write data to a serial device connected to a NVIDIA^® Jetson™ hardware. To open the serial pin map of the NVIDIA Jetson board, click the View pin map button. For more information, see Serial Port Mapping for NVIDIA Jetson Boards.

Examples

Read and Write Data over Serial Port on NVIDIA Jetson Platforms

Use MATLAB® Coder™ Support Package for NVIDIA® Jetson® and NVIDIA DRIVE® to read and write serial data over the UART port on a Jetson board.

• Open Script

Ports

Input

Port_1 — Input port that accepts data

[Nx1] or [1xN] array

The input port through which the block accepts data.

Data Types: single | double | int8 | int16 | int32 | uint8 | uint16 | uint32

Parameters

Port — Port at which you connect board to serial device

/dev/ttyTHS1 (default)

The port at which you connect the NVIDIA Jetson board to the serial device.

Programmatic Use

Block Parameter: SCIModule_

Type: character vector

Values: valid name|

Default: '/dev/ttyTHS1'

Baudrate (in bits/s) — Bits per second

9600 (default) | 50 | 75 | 110 | 134 | 150 | 200 | 300 | 600 | 1200 | 1800 | 2400 | 4800 | 19200 | 38400 | 57600 | 115200 | 230400

Select the rate at which the data is read over the serial line. The baud rate is measured as the number of bits read per second.

Programmatic Use

Block Parameter: Baudrate_

Type: character vector

Values: '50' '75' '110''134' '150' '200' '300' '600''1200' '1800' '2400' '4800' '9600' '19200' '38400' '57600' '115200' '230400'|

Default: '9600'

Parity — Parity added to data to detect error

None (default) | Even | Odd

Select the parity you want to add to the transmitted data. A parity bit is used to detect error in the data transmission.

• None – This value means that no parity is used for error detection in the data transmission.

• Even – The parity bit value is 1 if the number of bits with value 1 is odd. The parity bit value is 0 if the number of bits with value 1 is even.

• Odd – The parity bit value is 1 if the number of bits with value 1 is even. The parity bit value is 0 if the number of bits with value 1 is odd.

Programmatic Use

Block Parameter: Parity

Type: character vector

Values: 'None'| 'Even' 'Odd'

Default: 'None'

Stop bits — Bits used to signal stop of data transmission

1 (default) | 2

Select the number of bits used to signal the stop of data transmission.

Programmatic Use

Block Parameter: StopBits_

Type: character vector

Values: '1'| '2'

Default: '1'

Version History

Introduced in R2020b