1. Introduction
Transparent Mode application is used to:
- Receive commands on UART RX and propagate it to the BLE Stack.
- Transmit events from BLA stack on UART TX.
A set of commands/events has to go through the STM32WBA UART to control BLE stack via Transparent mode application. Level shifter, VCP ST-LINK or applicative VCP can be used to manage the TX and RX.
| Transparent mode with P-NUCLEO-WBA5x board and ST-LINK VCP |
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2. Requirements
2.1. Software and system requirements
The software required are the following (minimum IDEs version):
- IAR Embedded Workbench for ARM (EWARM) toolchain V??
- RealView Microcontroller Development Kit (MDK-ARM) toolchain V??
- STM32CubeIDE toolchain V?? [1].
Programmer:
- STM32CubeProgrammer[2] : To flash the board with an already generated binary
To interface with Transparent Mode Application, STM32CubeMonitor-RF software is required:
- STM32CubeMonitor-RF V?? [3]
2.2. Hardware requirements
NUCLEO-WBA5 [4] is necessary to install the application.
| Hardware platform illustration |
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3. Transparent Mode example description
3.1. Project directory
The "BLE_TransparentMode" application is available by downloading STM32CubeWBA MCU Package[5].
| Heart Rate project directory |
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3.2. Project description
3.2.1. Structure
Software project structure with the most important parts:
| Heart Rate project structure |
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WARNING: Do not modify the files in Middlewares folder |
3.2.2. Application initialization
The different steps of the application initialization are described below:
| Heart Rate project initialization |
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3.3. Build and install
Follow the steps described in Bluetooth® LE Build and Install Application page, applying them for STM32WBA BLE_TransparentMode project.