STM32 MCUs Embedded software

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...

Does the PDM2PCM decoder library ( https://www.st.com/en/licensed-software/audiopdm-mw.html) work on the STM32G491?

I'm trying to use an STM32G491 in a voice recognition application. This is a single microphone, mono voice capture application. I'm using an NUGLEOG491RE and an MP34DT05-A microphone (1/4 STEVAL-MIC001V1) for testing. I need to convert the PDM stream...

Is it possible to change clock frequency when detecting connection to USB device?

I have project that I'm designing around an STM32F411 that 99%+ of the time will not have a USB device attached. I'd like to run at the top clock frequency of 100MHz. I see that I can not do that and use the USB device as it needs to run at 48MHz. I'...

STM32F107 read MP34DT05-A mic on I2S

I am working on STM32F107 to read MP34DT05-A mems mic on I2S. I have tried any configuration setting with `pdm2pcm.c` and i2s.c but nothing shows the expected result.The expected result is positive int value. This is what i did so far:i2s3 (SPI3) set...

I use STM32L452RC for my project which prints in putty through USB CDC. Whenever a character is pressed in keyboard, I get an interrupt and USB_Receive_DS function gets called . Based on the character the controller takes necessary action.

I use a timer to wait for the next interrupt from the keyboard . The timeout is 30 Secs. The issue here is the HAL_TIM_Period_Elapsedcallback is getting called frequently , but I have set the timeout to be 30 Secs. Can anyone help me fix this issue ...