Note

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SBUS Example

Introduction

This example sends SBUS frames via UART3, and dynamically modifies channel values when a button is pressed.

Source code location: src/rtsmart/examples/peripheral/sbus/test_sbus.c

Example Behavior

• Configured via FPIOA:

  • GPIO21 as button input

  • PIN50 -> UART3_TXD

  • PIN51 -> UART3_RXD

• Sends a set of default frames after initialization

• Cycles through channel values and sends when the button is pressed

• The main loop continuously sends SBUS frames at a fixed period

Key Interfaces

• drv_fpioa_set_pin_func()

• drv_gpio_inst_create() / drv_gpio_value_get()

• sbus_create() / sbus_destroy()

• sbus_set_channel() / sbus_send_frame()

Build and Run

cd src/rtsmart/examples/peripheral/sbus
make
./test_sbus

This example has no command-line arguments.

Tip

SBUS uses UART for transmission. For UART-related parameters and interfaces, please refer to the UART API Documentation.