STM32 MCUs Products

STM32H723VET CAN issues

I had working code on a Nucleo G4 board for CAN so I ported it over to the H723VET. I am running the same clock speeds and have it connected identically to the CAN shield i'm using. The issue is that it NEVER SENDS DATA! I've adjusted the CAN para...

Help! Workshop start in 2 days (November 25th), but hardware didn't arrive yet. What to do?

FIFO Undderrun issue in STM32H757 Eval board

Hi Guys,Quick question. We are using STM32H757Eval board for an application. We are not using in-built DSI display, instead, we use RGB display of size 1024*768. We are using 32bpp and transmitting RGB via LTDC. As per the datasheet, the maximum perm...

How to trigger CAN Callback (STM32L452) ?

I'm currently trying to get a message from another can device and I can't figure out why my callback isn't triggering.I can transmit a message without any problem however I can't receive any. I am using vector CANalyzer to check my bus.I was trying t...

I2C driver always busy after first use

I'm using the HAL_I2C_Master_Transmit_DMA driver on an STM32L412. I am transmitting 8 bytes of data to an external 4 channel I2C DAC - I have only one device on the bus. The first use of the driver works fine as confirmed by using an oscilloscope on ...

In addition to my previous question: it was easy to prepare folders etc. before the training starts. This helps to follow the training if you have only one monitor!

Stop mode 2 with external SPI peripheral

Hello ST community,I have QSPI flash and an environment sensor based on SPI with stm32l496rg development board.If I put controller in stop mode 2 without sensor and flash current consumption of system is 3uA.If I connect flash and sensor then in stop...

We are designing circuit for IOT NODE using ST 32L4. We would like know whether we get technical support from Application Engineers for Validating our design

Please inform the procedure to get technical support from you

Is there any difference between usart6 and usart 1? Usart6 gives me problems with same configuration as usart1, which is working fine.

Hello community,I have a problem with using usart6, although usart1 is working fine.My setup: STM32F439, usarts connected to a dual ftdi chip, so I have two com ports on the pc to choose of, which represent usart 1 on usart 6 resp.Also direct usb con...