STM32 MCUs Products

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HSE oscillator when using USB

The STM32F303xB datasheet states that HSE oscillator should be used when using USB. I suspect it is because of the degraded accuracy of the HSI oscillator at temperature. I've had issues with CAN not working well with HSI at elevated temperature. Doe...

Resolved! Problem in using flash memory of STM32H745

MCU : STM32H745Boot : booting from user main memory(0x08000000 )of flash memory ( boot0 :low)compiler: IAR​I am coding to write in address 0x08060000 of flash memory in Cortex M7 . Cache is enabled, MPU is configured below After at first writing 4444...

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hryu.1 by Associate II
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Resolved! SPI1 SCK Polarity is incorrect.

I have a B-U585I-IOT02A Discovery board, which is connected it to an external ST LSM6DS3 accelerometer via the SPI1 pins on the arduino connector. The issue is that the SCK line is going low when not active even though I have it configured to be hig...

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cBroadbo by Associate II
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Resolved! Two STM32F103C8´s connected by SPI. Master is sending data=3 as test, Slave STM received the data, HAL_SPI_RxCpltCallback is fire, but HAL_SPI_ErrorCallback is fire too, HAL_SPI_GetError=4 (overload)

Hi all.I am trying to connect 2 STM32F103C8 (blue pill board).I run a test using just ONE STM32 using SPI1 as Master and SPI2 as Slave, all configurations were working fine (FullDuplex, Master Transmite. receive only Slave....every test was fine (all...

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ERABALF by Associate III
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  • 4 replies
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SPI using SPI_NSS_HARD_OUTPUT not working

Using a stm32f412zg:I want a simple master / slave full duplex config, using hardware gpio toggle PA4. I believe I am doing the necessary to init it right but 1) problem, the GPIO goest to 0 before the transaction, and never come back up. 2) commenti...

mbristol by Associate II
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  • 4 replies
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Resolved! How do i know whether MCU STM32F427VGT6 is genuine or fake

I bought hundreds of stm32f427vgt6 MCUs, They work abnormally—— The flash size@ address 0x1FFF 7A22 value is 0xFFFF, In theory it should be 0x0400. The MCU uid @ address 0x1FFF 7A10 of the same batch is irregular,but it should be regular accordin...

Ryan Luo by Associate
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Resolved! STM32L431 mass erase over SWD not working

Hello,I've created a custom PCB with a STM32F207 controller on it. With this board I want to address different targets using SWD. My targets are a STM32F407 and a STM32L431 controller. I implemented a custom SWD interface with Timer and DMA on my F20...

user 143 by Associate III
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  • 2 replies
  • 1 kudos