Ask questions, find answers, and share insights on STM32 products and their technical features.
Hi, I want to store 8 bits of data coming from my Modbus in a different variables in the form of 1's and 0's using stm32f103.I have done code like , the bits i have sent is 101101101 sent by Modbus is storing in my holding register [1] in the fo...
So,LPUART can not use LSE to configure BaudRate 9600?
General idea:I'm trying to write the I2C as slave on a L476. The master might need to change a bunch of registers at the same time, so instead of sending n separate commands I want to receive one long command and the prepare the response to be sent b...
I wrote some software that reliably measures the number of memory cycles required to retrieve 16 and 32-bit operands from the Cortex-M4 memory. When a 16-bit operand fits within a 32-bit physical word, I would have expected that only a single memory ...
hey thereI try to receive some characters using UART and here is the confighuart1.Instance = USART1; huart1.Init.BaudRate = 4800; huart1.Init.WordLength = UART_WORDLENGTH_8B; huart1.Init.StopBits = UART_STOPBITS_1; huart1.Init.Parity = UA...
I found that STM32F4 timers might count incorrectly until first update event if using a prescaler. I can consistently reproduce this with multiple general purpose timers in a least two different STM32F4 variants, a STMF32407 and a STM32F429.Is this a...
Hello,I try that when my OUTPUT compare is triggered, it triggers a function.As for the PeriodElapsedCallback method, when the timer is in overflow, it creates an interuption and the PeriodElapsedCallback function is called. Is there a function doing...
It stops at comparing values written into the flash. At the begginig some data are copying well, but then it doesn't match and return FLASHIF_WRITINGCTRL_ERROR. It always stops at the same position, but when I change size of stack it becomes differ...
Short version: I am working with the STM32F446 family and I use TIM1 as 4 independent timers:typedef enum { TIM1_CHANNEL_1 = 0, TIM1_CHANNEL_2 = 1, TIM1_CHANNEL_3 = 2, TIM1_CHANNEL_4 = 3, } timerAndChannelSelector_e; void scheduleTi...
Hello, I would like to change TIM2 to TIM5 but my code didn't work after I changed that. Could someone help me please? Thanks a lot Here is the code #include "stm32f4xx.h" /* PA0 - TIM2_CH1_ETR/ TIM5_CH1/ TIM8_ETR/ USER BUTTON PA1 - TIM5_CH2/ TIMM2_C...
