Ask questions, find answers, and share insights on STM32 products and their technical features.
Dear all,I was trying to verify STM32F479 and STM32L476 microcontrollers compliance with SD memory card version 3.0. Both reference manuals state "Full compliance with SD Memory Card Specifications Version 2.0".Using HAL functions provided by ST I ha...
I am trying to set up a hal can receive interrupt. After thorough googling, I found that HAL_CAN_Receive_IT is deprecated and that I should now be using HAL_CAN_ActivateNotification with a callback function. Unfortunately no one describes how to do t...
Hi all,In the past, I've used HAL_UART_Transmit() with HAL_UART_Receive_IT() which freeze RX interrupt in case of RX interrupt while TX is still processing (see https://community.st.com/s/question/0D50X0000AhPrkRSQS/haluarttransmit-with-haluartreceiv...
Seen this on two board designs, about two year different in age and many steppings of STM32H7The H743I-EVAL and H745I-DISCO have 1Gb (128MB) of Micron QSPI flash, one as a dual die single chip, the other as two SOP16Using the BSP code I can access th...
In AN4899 it specifies that one should add a zener diode from the 5V rail to the 3.3V rail in order to have complete safety when using FT pins with 5V pull ups. Does anyone know what the specifications of the Zener diode should be (currents, resistan...
Does anyone have experience with 5V pull ups? do you have to power on the 5V source after the MCU is started?I'm running a STM32L431CBT6 with external 5 volt 10k pull-ups on the pins PB11,12,13,14,15 and PA1. (all flagged as FT pins)I've been able t...
Hi, I am working with F413 and I am using USART3 to receive and trasmit data over UART. As I need to receive unknow size of data I wrote my own interrupt handler for RX. However I would like to transmit data out with a help of DMA. If I call regular ...
Hi, I have implemented SPI communication using DMA and it works. When i receive different data than the mentioned protocol format then it hangs and i dont receive any more data and i have to reset the chip to get back the communication. Is there any...
Hi everyone!I'm working with STM32F303. I'm configuring the CAN peripheral with HAL libraries for pooling mode operation. I'm wondering if there is a method to check only the FIFO0 fill level and configure the peripheral to move FIFO1 messages into F...
