STM32 MCUs Products

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Resolved! Two questions on I2C flags SB and BTF in STM32F446RE

Hi, I'm stepping through the code on Nucleo-F446RE board and doing the following:LL_I2C_GenerateStartCondition(I2C1); step++; while(!LL_I2C_IsActiveFlag_SB(I2C1)); LL_I2C_TransmitData8(I2C1,BMP180_ADDRESS_WRITE); step++; while(!LL_I2C_IsActiveFlag_A...

kj.obara by Associate III
  • 2088 Views
  • 3 replies
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Newbie Needs Help Installing NuttX RTOS on STM32F446 Board

Hi all. I'm a CS major with a decent knowledge of C, C++, and Python, but my summer internship has tasked me with installing NuttX onto an STM board and I'm a bit lost. I have never used Linux before and I have never dealt with real time operating sy...

BGibs.1 by Associate
  • 1007 Views
  • 1 replies
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SD (read-only) memory leaks issue

Hi, I hope you are well!I get stuck on the same issue since a few months:I stream multiple audio files (.wav), at the same time and continuously. After 24 hours of streaming, SD card files start to be corrupted (data is wrong) and when I inspect the ...

jean by Senior
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  • 8 replies
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STM32F2 RXNE flag FROM SR register clear without reason

Hello,I am using UART4 from a STM32F2. I am sending a data then my RXNE FLAG from SR register go from 0 to 1. Without doing anything (no read of the DR register and no clearing manually the flag) it go back to 0 after some time. So I am missing the d...

haye by Associate II
  • 4198 Views
  • 19 replies
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SD Init Failure on STM32H743I-EVAL2 with Example Code

I am using the STM32H743I-EVAL2 and have been trying to get the SD card initialization working. During the execution of HAL_SD_Init() --> HAL_SD_InitCard() --> SD_PowerON(), HAL_SD_ERROR_CMD_RSP_TIMEOUT is returned.I was originally using code generat...

I2C controller getting false arbitration lost

I've enabled the I2C controller and ask it to send a start condition on the bus, and it does, however, as soon as I write a data byte to the TX register, it releases the bus and raises an arbitration lost flag. How can this be possible when there is...

psusi by Associate II
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  • 2 replies
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Bus Usage Fault causes SRAM2 parity error

While testing the exception traps routines I ran into an odd problem with the SRAM2 parity check on an STM32L496. As part of a unit test I force a usage error by attempting to read from 0x3000 0000, an invalid address. The usage vector is called co...

Change PWM polarity at update event with STM32 Timers?

I am using the adanced control and the general purpose timers witch the STM32F334K8T6 to drive one half-bridge and one full-bridge.The problem lies with the full bridge:I use the general purpose timer with two times asymmetrical PWM (center aligned m...

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Resolved! MCU not boooting after flashing

Hi,I'm using an STM32F334 in a Nucleo development board. I have flashed the device both with STM32 ST-Link utility and after finishing, I connect the development board to an external supply and the MCU does not start running unless the RST button is ...

mur by Associate III
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  • 6 replies
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Resolved! STM32G and STM32F differences?

How do these series differ from each other? Especially "Cubewise"?Are there notable differencies in the Atollic/Cubeide user's point of view?Is this G4 basically F3 with F4 core?