STM32 MCUs Embedded software

hi i want to make advancement in transducer is want to add modbus and usb in that.the current design is on 8 bit STmicrocontroller. what should I do?

HAL_I2C_Master_Transmit & HAL_I2C_Master Receive never return with HAL_OK using I2C2 Using cube 5.0 generated init's and using the F4_V1.24.0 library.

I2C2 is PB11,PB10 are connected to an AT24CM01 I2C eeprom. I get a few writes to the DR then the hal decided that the device is busy and all other calls fail because the device is busy. My writes and reads are trying to to do 240 bytes, not a very ...

Is there any limitation of stm32f4 in using USB as a mass storage device?

Hello,I need to use USB as a mass storage dvice with stm32f4 discovery.I have a running code from Ub_Lib. But it is not working for all the USBs I have.can anyone help me with it. I am able to make a file but it is not able to write and read from fil...

Silicon V CDC not working in Windows but silicon Y does

I have been working with STM32H753IIK6 (Silicon rev Y) for the last couple of months and using the CDC console in Windows 10 for debug and comms for the program. It shows up as COM8 in Windows, and Putty can connect to the serial port and open the c...

The highest number of files in a FATFS drive: STM32L4 Cube code

I request to know whether any higher limit on the number of files that a FATFS drive can store.Using an STM32L476 Microcontroller, I'm saving an image file (300-400KB) in every 5 sec with an 8-letter filename, 'xxxxxxx.JPG' where x is a Hex Number. I...

Why the Lwip example code cannot run on the my customized board?

Hi,I run the "LwIP_HTTP_Server_Netconn_RTOS" example well on STM32746G-Discovery board. I can see webpage after type "192.168.11.1" in browser.I modified the gpio configuration in "HAL_ETH_MspInit" I modified the HSE_VALUE from 25M to 8M (my board us...

USB HS Device DMA is broken?

Hi, I am working on USB HS Device and Host applications with STM32F7 family (STM32F745ZGTx). Initially DMA on both of them didn't work at all. It's well-known bug, which still not fixed (http://we.easyelectronics.ru/STM32/stm32f4-usb-hs-dma-hal-kak-e...

How to program option bytes (using One of the DFU file Images) in to STM32 uC chip successfully using DfuSe demo application

·      I am trying to modify the option bytes in STM32 chip to enable the Read Out Protection, for that I have created Hex file of option bytes, then merged image for Target ID 00 from my program build (Hex file) and Image for Alternate Setting 01 fr...

USB Isochronous

Hi, I am new to stm programming. I now need an application where i can send the isochronously from PC to device (I m working on f303re nucleo board). Couldn't find any information about how i can do that. I am creating a libusb CDC project and then i...