STM32 MCUs Products

STM32H723/733, 725, 735, 730 VREFINT confusions

There are two points of confusions.1. VREFINT_CAL is a 12-bit precision valueUnlike predecessor of H7 family (H743, H7A3, etc.), the VREFINT_CAL value stored in VREFINT_CAL_ADDR is a 12-bit precision value stored in a 16-bit (8-bit x 2) location.For ...

CANtx Buffer, Not sending all CAN tx messages and skipping, any methods in dealing with the CANTxMail?

I'm currently using the stm32f413zh, and face perhaps a general problem where I'd like to send four CAN messages right after each other. If we refer to the image below, I have four "addtxCAN" commands below and only able to see the first three. When ...

Internal temperature reading and DAC output

I am trying to get the temp of the internal temp sensor.. I tested on both MB1367 demo board and my own board.I use jumper to connect JP8 pin2 and pin 3 to get Vref as 3.3V. I attached the cubmx and main file of my simple code. The issue is I always...

Add date time offset (set time Zone)

HiIam using CUBEMX and kiel for my development. iam read date time from the GSM modemwhen i read it from the modem its looks like this. +QLTS: "20/09/24,18:08:18+22,0"+22 mean my time zone(+5:30). my actual time at this time is2020:09:24 23:38:20i wi...

STM32G4 Timer Break On Exceptions

Hello,I would like to test the behaviour of STM32G4 MCU timers on exceptions. The SYSCFG register has several options for timer break. The HAL library provides the following macros to activate these options:__HAL_SYSCFG_BREAK_ECC_LOCK();__HAL_SYSCFG_...

STM32F401VET custom HID works without a problem on Windows 7 but occasionally loses messages on Windows 10,

This device is a custom control panel with buttons and encoders. It enumerates without apparent problems on both Windows 7 and Windows 10. When a button is pressed on the panel a press message is sent and when it is released a release messages is sen...

Created a thread but not getting any log of the thread subroutine in console

Hi All, I am new to ST.I am trying to create a thread in STM32L4 - discovery board from my main process. I am getting a non-NULL handle from the thread which means the thread is created successfully. However, I don't see any log from the thread in th...

Unable to get DMA to GPIO working on STM32F411

I'm new to using the STM32, coming from AVR. I'm trying to switch in order to take advantage of DMA but I can't get it working. I have a Nucleo STM32F411re.I've generated a new project, configured a few pins on GPIOC as output, configured TIM1 to u...

Anyone have experience of sending/receiving video/picture data using WiFi Direct (P2P) mode between a wireless module and an android device, with STM32F4 or other? Thanks in advance