STM32 MCUs Embedded software

STM32CubeExpansion_Cloud_CLD_GEN_V1.0.0\Projects\STM32F769I-Discovery\Applications\Cloud\GenericMQTT\EWARM

I am able to successfully load the GenericMQTT project to STM32F769 discovery board. However, Up on selecting "Clear Connection" for the MQTT communication. The program is asking for CA certification. I believe CA certification is not required for Cl...

C++ constructors that are running before the IAR DLIB lock initialization cause system to hang

Hi,We are using the IAR compiler and Cube generated project on STM32L4+ for a new project we intend to code in C++.Because C++ runs constructors of static objects before the main() function at an undetermined order the program hangs. I need to make s...

How to make the default STM32Cube USB device library run as microphone?

Hello everyone,I want to make an USB microphone using the STM32CubeIDE. After I configured the USB connection with STM32CubeMX, I wanted to modify the USB device library to make it work in the other direction (from device to host). Therefore I modifi...

File writing issue with Ethernet in STM32Cube F4 V1.27.0

Hi,​I ported my project from F4 V1.26.2 to V1.27.0 and found an issue related to file corruption on the sd card after transferring the file through Ethernet (by FileZilla FTP). The weird point is transferred file size is correct but the file contents...

I configured Ethernet and LWIP on STM32F407 as shown in the screenshots. But I am not able to Ping the IP.

How to USB in combination with a barcode scanner (as a host only peripheral for reading)?

I have a USB device in HOST only mode using the CDC middleware to receive data from a barcode scanner set in RS232 mode. This is working accept for the enormous amount of (spurious) host channels interrupt USB_OTG_GINTSTS_HCINT. When I monitor the nu...

I2C communication between STM32 MCU and temperature sensor using Low-Layer API

Hello,Could you share any examples of I2C communication implementation between STM32 MCU and sensor using Low-Layer (LL) API? I am using STM32L011 MCU and trying to read temperature values from temperature & humidity sensor HDC2080. I found a library...

What is the LL equivalent of HAL_I2C_Mem_Read?

Hi,I found a tutorial for using a BME280 sensor with I2C in HAL (https://controllerstech.com/bme280-with-stm32/).However, I need to use LL for it to fit into the rest of the program. The main part I'm having an issue with is below as I can't find a c...

Problem with LWIP generated with Cube_H7_V1.9.1

Hi!The following was tested with Nucleo-H7ZI.I have generated a project with basic defenition of freeRTOS and LWIP.Once an ehternet cable is connected to the board the program collapses and goes to hardfault.after comparing the LWIP code from current...