STM32 MCUs Embedded software

Ask questions and find answers on STM32Cube packages, including HAL, LL and middleware, and expansion software.

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Question about CMSIS driver

I've download the CMSIS pack for STM32H7 series. ST implement an I2C driver function like this:​int32_t I2C_MasterTransmit (uint32_t addr, const uint8_t *data, uint32_t  num, bool  xfer_pending, I2C_RESOURCES *i2c), ​but the website, https://arm-soft...

JLee.32 by Associate III
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STM32F407VET6 Custom Board Ethernet not working

Hello, F407VET TQFP100 on custom board, ethernet PHY LAN8742A, STMCUBEIDE 1.6.1 on Linux (mint). PHY and MCU both clocked by 25MHz oscillator, reference clock 50MHz is OK. Cpu running @168MHz FREERTOS 3 task: default init LWIP, start HTTPD thread t...

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Problem with USBPD 1.3.0 as sourcing device

Using USBPD 1.3.0, DRP_VDM project running on P-NUCLEO-USB002. Adding SOURCING_DEVICE macro.STM32 is UFP (after Data Role Swap). The DFP requests Discover Identity of the SOP' but the STM32 answers with GoodCRC and never ACKs the Discover Identity.It...

CMcCo.1 by Associate
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Interfacing with MEMS digital microphone

Hello,I'm using an stm32l151re to interface with mp34dt05-a mems microphone. I'm using it to determine noise level. The communication between smt32 mcu and the sensor is based on I2S protocol with dma. My issue is that my project consists of multiple...

FreeRTOS TASK1 stuck while performing continuously communication on UART in TASK2, how to solve this issue?

I created a two task one is for my gsm modem communication through uart and another task is for Bluetooth communication through uart, gam modem communication task is stuck while bluetooth communication task receive data cintinuously.How to resolve t...

JP_RS by Associate II
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How to set DFSDM Configuration so that LPF cut-off frequency is 1 KHz on MP34DT01-M using STM32F779NI-EVAL?

Hi, I am evaluating MEMS microphone for our application. I am using on board microphone MP34DT01-M in STM32F779NI-EVAL. I am using DFSDM example in STM32F7cube package and able to hear the speech. Now I want to filter the frequencies higher than 1KHz...