Ask questions and find answers on STM32Cube packages, including HAL, LL and middleware, and expansion software.
I'm working on STM32F746 Discovery try to use STemWin. I using cubeMX to gen code for cubeIDE. But i'm stuck, sprintf %f not working. It's return 0x00 and dot instead. For example char str[32];float a = 123.456;sprintf(str, "%f", a);the resultstr[0] ...
In 176 PIN package of STM32F407, there are two set of Ethernet TX signals (TX_EN, TXD0, TXD1) present. One set in Port B and another in Port G. My question is whether we can use them interchangeably. For example, can i use TX_EN from Port G (PG11) to...
Hello, I am working on a project where data shall be logged onto a SD Card.I am using a stm32 mcu with freeRTOS running on it. I use spi and the fatfs library to communicate with the sd card.I have a own task which write the data from a circular buff...
Hello all ; I am using free MP3 decoder from spirti that supported by ST. but I noticed I cant use hardware floating point when I use this libraru . AM I wrong ? Can I use hardware floating point ? Regards
Hello, I am using STM32 in I2C slave mode. I can able to get data properly but I am unable to transmit. Master is receiving 0xFF all time.Any stm32 i2c slave code for reference ?
Hello,we have some trouble with STM32H742, trying to flash it via bootloader. It seems to accept only every second line of a hex file. We receive a hexfile with another microcontroller, build the bootloader commands and perform the bootloader communi...
I'm using an STM32L496 on a custom board and using USB CDC configured through CubeMX (STM32Cube FW_L4 V1.14.0). This connects to a Windows 10 laptop. Randomly I get "USB device not recognised". I can go days without the issue and then it suddenly ap...
HiThe development of HID using STM32, such as mouse class and user-defined class, is very smooth, but the latest project uses hid power devices, which is a subclass protocol under hid, so I don't know how to deal with the report descriptors, so I nee...
I'm busy with a USB to Ethernet implementation using the ST USB library and LwIP.When I send a packet to the host (Data IN) that came from the ethernet interface, I know where is the end of an ethernet frame send a zero length packet (ZLP) accordingl...
I have taken the STM32Cube_FW_F1_V1.8.0 example CDC_Standalone and adapted it to my purposes. The original example intends to forward bi-direction USB communication over a serial port. I have removed the serial port stuff and intend to simply send me...
