How to set I2C clock speed for STM32L432....
A reference to an existing explanation would be fine.I can't find a reference manual
STM32 MCUs Products
Ask questions, find answers, and share insights on STM32 products and their technical features.
Forum Posts
Any STM32 in flip-chip packaging ?
Hi everyone, I was just wondering if there was any STM32 MCU in a flip chip packaging configuration ? I have seen some BGA packages but I came to understand that it didn't mean that the chip was flipped inside...Any info on the matter would be appre...
Exit from STOP mode
Hi everyone,I'm slightly confused here.I'm putting my micro into stop mode, but I can't seem to wake it up using an interrupt.Here's how I'm setting it:__HAL_RCC_GPIOA_CLK_ENABLE(); GPIO_InitTypeDef GPIO_InitStruct; GPIO_InitStruct.Pin = GPIO_PIN_4...
Resolved! Can't get a simple GPIO External Interrupt to fire
Hi there. I'm having a lot of trouble.I've managed to get UART (just direct calls, not interrupt based), PWM, and ADC working on a Nucleo board (namely, the STM32F070RB board). However, I'm having serious trouble getting a simple push-button to fire ...
STM32 UART RS485 DE probelm
Hi, AllI am using STM32F303CB to build a modbus environment which connected to RS485 bus. (BTW, MCU as slave side)I using STM32 HAL lib to setup whole UART & RS485 setting. I suppose DE pin waveform should be matched to Slave_Tx ( X wrong)-> The DE p...
Resolved! Bugged PWM generation via timer in slave mode on STM32L496?
Hello,I implemented a simple function generator as part of a project with a NUCLEO-L496ZG-P board.A cosine signal is generated using TIM2 (internal clock, no prescaler, period set by ARR value) -> DMA (with 256 point cosine table in memory) -> DAC (t...
bxCan out of service , after a software reset through NVIC_SystemReset()
I had build a host-client system , both host node and client node based on STM32F103C8T6. If host does not received client‘s [I'm alive] message though CAN bus for a while (about 2 seconds) , host power off client by turn off a P-Channel MOSFET, ...
Resolved! STM32072B-EVAL : where is the (working) software and updates?
I am using a STM32072B-EVAL board because I need a working demo about HDMI-CEC.It is clear that there are problems: the original firmware already on the board has errors about icons (some graphics is broken), about images (it hangs if try to show an ...
I have a problem with Input-Capture driver for Timer3 specially for stm32f10x
Registers "TIM3_CCR1" "TIM3_CCR2" that should hold the frequency and the duty cycle of the signal always equal zero
Resolved! PA0 and NUCLEO-H743ZI
Hello,I want to use TIM3 as 32-Bit counter. Clock source is set to ETR2. The corresponding Pin is PA0. For test purpose I use TIM3 to generate a clock signal (Pin PC6) to feed the TIM3 counter.Connecting these to pins together (PA0 and PC6) results i...
