How to get ST official sales or technical support in China?
How to get ST official sales or technicalsupport in China? I try to find ST official sales，but nobody answser the Telephone number. https://www.st.com/content/st_com/en/contact-us.html
Forum Posts
stm32u585 UART receive not working, transmit working
HiI have been using stm32u585QII3 MCU in our custom board. I am using USART1(PB6, PG10) to transmit and receive data. In interrupt mode transmit call back is working but receive call back was not working. Initially i have set a break point, the inter...
STM32L052 crashes when executing SystemClock_Config when MSI_RC set to 65.536
I start a new project using STM32CubeIDE Version: 1.14.1 and select STM32L052K6T6.All I change is the MSI_RC clock setting to be 65.536kHz. This causes all the other clocks to change to this same freq.I program the device and step through - executio...
Validating received UART message
Sorry if this is a rookie question. I have set up USART 2 to receive a UART command. If the sent command is "<EN>", I need to toggle the value of a global state variable. When transmitting the received data via the callback interrupt, I have no issue...
HAL_UART_Receive_IT not resetting after HAL_UART_Transmit
I am trying to implement MODBUS protocol. STM32 receives an initial message of 8 bytes and then send a response of 8 bytes. However, the next message received by the STM32 doesn't trigger the HAL_UART_Receive_IT callback. uint8_t reception_complete =...
STM32U5A5 USB device vendor specific class implementation
Hi,I need to create a USB composite device class interface with STM32U5A5 controller. I have been using the USB_CDC_ACM example project so far for my development. In this example the USB CDC ACM class is configured and I need to change/add this to a ...
Resolved! STM32H755ZIT
Hello, Does the STM32H755ZIT support flashing over CAN? The application note AN2606 suggests that the H75x series does support bootloader access on the FDCAN1 interface, but specifies pins PH13 and PH14, which are not available on the LQFP144 package...
Resolved! FLASH_VOLTAGE_RANGE_1
Hi,What is the effect of "VoltageRange " while erasing a sector ? Er.VoltageRange = FLASH_VOLTAGE_RANGE_1; Ret = HAL_FLASHEx_Erase(&Er, &SectorError); #define FLASH_VOLTAGE_RANGE_1 0x00000000U /*!< Flash program/erase by 8 bits */ #define FLASH_VO...
Strange Behaviors on PA0 Encoder Timer Input on NUCLEO H743ZI2
Hello everyone,I work on a demonstration product using a NUCLEO H743ZI2 board has a main board. I use two timer (TIM3 and TIM2) in encoder mode to measure the speed of two motors with precision.But I didn't manage to get the theoretical results on 1 ...
STM32G4 SPI Transmitted Data is also Transmitted while receiving during next cycle
Hello,I'm currently working on a project where my STM32G747RE is acting as an SPI Slave.The SPI transmission is as follow:Master sends 8 bits "command"Slave send back 16 bits "data"My issue is the following; On the MISO line, the STM32 always send ba...
