wolfSSL STM32 Example for System Workbench for STM32 (Open STM32 Tools)

This example includes:

• wolfCrypt test
• wolfCrypt benchmark
• wolfSSL TLS client/server test using in-memory transfers

These examples use the CubeMX Hal for STM32. If you'd like to use the older Standard Peripheral library undefine WOLFSSL_STM32_CUBEMX in user_settings.h.

Requirements

• STM32CubeMX: STM32 CubeMX HAL code generation tool - http://www.st.com/en/development-tools/stm32cubemx.html
• SystemWorkbench for STM32 - http://www.st.com/en/development-tools/sw4stm32.html

Setup

1. Using the STM32CubeMX tool, load the <wolfssl-root>/IDE/OPENSTM32/wolfSTM32.ioc file.
2. Adjust the HAL options based on your specific micro-controller.
3. Generate source code.
4. Run SystemWorkbench and choose a new workspace location for this project.
5. Import wolfSTM32 project from <wolfssl-root>/IDE/OPENSTM32/.
6. Adjust the micro-controller define in Project Settings -> C/C++ General -> Paths and Symbols -> Symbols -> GNU C. Example uses STM32F437xx, but should be changed to reflect your micro-controller type.
7. Build and Run

If you hardware support crypto acceleration then:

1. Manually copy over the CubeMX HAL files for stm32f4xx_hal_cryp.c, stm32f4xx_hal_cryp_ex.c, stm32f4xx_hal_cryp.h, stm32f4xx_hal_cryp_ex.h.
2. Uncomment the #define HAL_CRYP_MODULE_ENABLED line in stm32f4xx_hal_conf.h.

Configuration

The settings for the wolfSTM32 project are located in <wolfssl-root>/IDE/OPENSTM32/Inc/user_settings.h.

• To enable STM32F2 support define WOLFSSL_STM32F2.
• To enable STM32F4 support define WOLFSSL_STM32F4.
• To enable STM32F7 support define WOLFSSL_STM32F7.
• To enable STM32L4 support define WOLFSSL_STM32L4.

If you are using FreeRTOS make sure your FreeRTOSConfig.h has its configTOTAL_HEAP_SIZE increased.

The TLS client/server benchmark example requires about 76 KB for allocated tasks (with stack) and peak heap.

Example Output

....MENU

.t. WolfCrypt Test
.b. WolfCrypt Benchmark
.l. WolfSSL TLS Bench
.e. Show Cipher List

Please select one of the above options:

Support

For questions please email support@wolfssl.com