STM32 MCUs Products

stm32 CAN bus: A sends data to B nodes.

I have 2 nodes, A and B, they set filters for both, now A is sending data frame, B can receive the data from A. but A originally can receive data from B, but after around 1-3 mins the receiving data mainly from itself, minorly from B. but if i rese...

I2C timeout not working correctly

I have tried enabling the timeout function in the I2C controller by setting a value in TIMEOUTA and setting TIMOUTEN. I can see the bus working normally on a scope, then when I connect with the debugger ( no reset, no upload ), the halt causes the t...

Why does the Crystal Clock on STM32F103 have an offset and why is the microcontroller very sensitive to this offset?

Hi,I am currently having trouble with a Hard fault issue that I cannot understand and I was hoping someone might have come across a similar issue. I have a Crystal Oscillator with a 16MHZ clock at the input. I use the MCO pin from the microcontroller...

Any resources on how to ensure mechanical robustness using WLCSP parts?

I've been looking for specifications and/or white papers on the best practices for ensuring the WLCSP is able to be mechanically robust. Are there any documents that detail how much of a bend or flex is allowed in this type of package?I'm specificall...

How to apply compiler option like "__attribute__((section(".ram")))" to math.h functions ? Where are actually these functions ?

안녕하세요 100Mhz 50% 듀티 PWM�?� 만들고�? 합니다. datasheet �? STM32H723xE/G block diagram �?� 보면 최대 138Mhz가 �?�다고 하는�?� PWM 파형으로 100Mhz 정�?� PWM 출력�?� 가능할까요 ?

Hi there, I’m using an STM32L432 and I’m trying deep sleep with mbed RTOS. Using tickless mode I've been able to set deep sleep at 700uA usage. However, using threads increases the current to 3mA, normal sleep uses 5mA. What has caused the increase?

SPI only gives 16 clock cycles, but my data is 64 bytes

I am trying to communicate with a wifi module with stm32f769's spi interface. My data packet is 64 bytes, but the spi only provides 16 clock cycles, Hence the datapacket sent is invalid. Can anyone tell me what could be the possible solution for this...

How to create many software timer in STM32 using single hardware timer?

I want to create many(20) software timer using​ single hardware timer of STM32.Timer accuracy in Mili second.​Example:Timer = T​T1 start > T1 over & T2 start > T2 over &T3 start....> T(n-1) over & Tn start.​Sequence of timer or sequential timer​Timer...

LPUART is stuck after HAL_UART_Receive. L081KZT6

Hello,I have some Issues with LPUART1 on a STM32L081KZT. What I want to do is:- Receive Data of variable length via LPUART1 using the HAL_UART_Receive function.- Reading bytewise in a loop- Using an External Interrupt to start the receive.My Code loo...