STM32 MCUs Products

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SDIO 4bit not working, but SDIO 1bit is working.

STM32F429I-DISC1STM32F429ZIT6USTM32CubeMX Version 5.6.0FATFS Version R0.12ctwo different SDHC Class 10, 8GB with sector size 2048, tested on windows 10FREERTOS not enabledSDIO 1bit is working perfectly with my configuration.SDIO 4bit is not working, ...

DMA misunderstanding (burst, data alignment, FIFO)

While I was reading a book about DMA I came up with some questions. I tried reading AN4031, RM0090 with no better luck in understanding.The problem has to do about bursts in DMA. The questions are theoretical and there is no source code to follow the...

Resolved! UART with byte stream gets overrun error

Hello,I worked till now with H7 (stm32h743) and UARTs and had no issues at all.But recently I needed to port the project to L4 (stm32L496).For some reason UART now behaves differently:With polling there is no issue, but with interrupt or dma:As long ...

ranran by Senior II
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3x CAN with STM32F7

I plan to use an STM32F7 to adress three different CAN-Buses. As the spec sheet says there are 3 available I don't see a problem. However the reference manual talks about a dual and single CAN Bus architecture with CAN2 being the slave of CAN1. Is it...

JSchn.1 by Associate III
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Resolved! Run MCU at Full Speed

Hi.I want to use my MCU at its max Speed.I am using STM32F103C8T6( Blue Pill ).Can any one Provide good resource?can anyone Provide source code for this ?Can anyone tell me about that in my Controller Why are we using RCC_CFGR and RCC_CFGR2?What is t...

CAN Bus error frame - how do I detect it [STM32]

What registers do I look at and what bits? Also, does the peripheral library wrap all the code needed to handle error frames? We are using a board Nucleo-G474RE.This question was already asked at https://community.st.com/s/question/0D50X00009XkhBe/ca...