STM32 MCUs products

Resolved! GPIO and peripheral intialization after exiting STOP Mode 1

Hi,I am using ThreadX and the STM32L4A9 processor. When my application is ready to sleep I call an enter low power function. I followed sample code from ST Cube example which disables the GPIO CLKs and enters STOP Mode 1.//ENTER Low Power Mode/* Dis...

Resolved! STM34L431 UART receive on Pin PB10, Pin always high signal

Hello,I have a problem with the Controller. For some time the Uart is working fine. Than the UART receive Interrupt is not generated anymore.I check the working pcb with the debugger and the scope. I see there is no Signal on the pin. The uart from t...

STM32 UART receives Null character(\0) on reset.

Project Details:The project consists of two STM32 MCUs connected over UART (without any external pull up resistors). One STM32L4 MCU (LPUART1) acts as an AT master and other STM32L0 MCU (UART 1) acts as an AT slave. AT slave is configured to wake up ...

Resolved! How to download program to MCU through ISP?

How to download program to MCU through ISP? LPUART1 or USART2?

UART Transmission - Why one MCU's UART GPIO pin state(Pull up) during the initialization impacting the Receiving/Transmitting or wake up capability of MCU2, connected over UART?

Project Details:The project consists of two STM32 MCUs connected over UART (without any external pull up resistors). One STM32L4 MCU (LPUART1) acts as an AT master and other STM32L0 MCU (UART 1) acts as an AT slave. AT slave is configured to wake up...

Overrun error in LPUART when using Hardware Flow Control

We are encountering this while using Low Power UART on STM32L412KB microcontroller. We are working on a battery-powered product that has two on board SoCs. One of them is STM32 and the other is Nordic. The two socs communicate with each other over a ...

Resolved! LPUART missing first bit when using LSE, Works fine with HSI

We am using the Murata 1SJ which has a STM32L072CZ MCU and internal LSE, We trying to decode a UART stream from a Ublox GPS device using the LPUART in STOP mode. BAUD 9600 8 bits, 1 stop, no parity, all standard stuff.When i clock the LPUART with HSI...

Resolved! Using of LPUART1 on L031K6

I'm trying to receive data from the LPUART1 serial port on the L031K6 development board.Unfortunately all my aproaches failed so far.Sending data works fine in all three modes:BlockingNon-Blocking ITNon-Blocking DMAI'm routing the LPUART1 to PA2 and ...

LPUart1 initialization fails on initialization (runtime)

using STM32H743ZITWe are using all the serial ports (i.e) 4 UART and 4 USART and all is good. In addition to the UARTS we are using thre I2c, and CANWhen attempting to add the LPUart1, the initialization fails. There is no pin assignment error etc. ...

STM32L0 LPUART not wakeup on stop mode

Hello everyone,I'm working on a project with an STM32L072CBT6.In my project, i use a LPUART1 and USART1 to send and receive data. Connected to this i use a DMA to get data.My projet works fine so i try to implement stop mode to reduce consumption.In ...