STM32 MCUs Embedded software

What is the I2C transaction size for the STM32 HAL_I2C_Mem_READ Function? I know for Arduino the I2C transaction size is limited to 32 bytes but I was unable to find similar information about STM32's I2C. I'm currently using the STM32L010RB chip.

Exception thrown at 0x0000000000000000 when calling connectDfuBootloader with "USB1"

I am getting exception thrown at 0x0000000000000000 when calling connectDfuBootloader with "USB1". This works fine in another program but in my current program I am getting this exception error. Do you know what I'm failing to do?Mark Sloan

Since STM32Cube_FW_F7_V1.17.0 the HAL I2C Functions do not work the same. For a huge project that used to work with no issues on STM32Cube_FW_F7_V1.16.2 the I2C Data line goes low and the Firmware reports an HAL_I2C_ERROR_SIZE. Is there a known bug?

We are using a STM32F76ZI for a consumer device.The Firmware used to work fine with no errors.Since STM32Cube_FW_F7_V1.17.0 the I2C communication does not work all the time reporting random I2C Errors. The most common error is HAL_I2C_ERROR_SIZE that...

Interface IP camera with STM32

Hi all,Is it possible to capture image from an IP camera which is connected to an STM32 MCU via ethernet port? An external RAM can be added to handle the data traffic. Due to multiple reasons I cannot use a digital camera instead of an IP camera.Does...

How to check connection alive in LWIP?

Hello,I am using STM32H743 and imported the sample project LwIP_HTTP_Server_Netconn_RTOS. Is there anyway to indicate the TCPIP is still alive or not in case the ethernet cable is disconnected?Thanks

HAL_I2C_Mem_Read_IT() clock stops mid way through 256 byte read

Hi,I am using a Nucleo-G474RE with the azure V1.0.0 pack and using a thread example project to interface to an external I2C 256 byte memory device.Using blocking I2C read/write works fine, I can read and write the 256 bytes in one go.When I switch to...

I have a question about the STM32G031. I want to confirm that the 28 pin package can be programmed using pins 18 and 19 with uart?

 according to the datasheet, I understand that PA11 and PA12 are mapped by default, which don't have USART TX/RX function, it should be changed to PA9 and PA10.AN2606 says that P9 and P10 can be usedDoes it mean that the bootloader automatically swit...

udp client -at atm32h753 board ethernet-lwip

hii i have the stm32h753 nuclio board and i am trying to run udp client on the board and my pc will be UDP_SERVER , i am using udp_echoclient_connect() and  udp_echoclient_send()  functions, that are inside the files that is included in the project e...

With BFB2 set on an STM32F429 (i.e. the ROM bootloader runs before the application code) it is not possible to start an application that runs from the flash alias at address 0. That works fine with BFB2=0.

STM32F429.The problem appears after the bootloader has run and jumped to application code, which it does when BFB2=1. When my application reads data from addresses around 0, it gets data from the ROM bootloader instead of from flash. I.e. it behaves ...