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Forum Posts

Do I need to invalidate D-Cache after HAL_Flash_Program?

Hello, I’m working with an STM32H723 MCU and have a question about Flash behavior when caches are enabled.Both D-Cache and I-Cache are enabled, and I’m not using any additional MPU configuration. I'm using D-Cache invalidate after a Flash erase opera...

rndkd1 by Associate II
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  • 0 replies
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GPIO Usage on STM32N6

This is a pretty basic question but I would like a bit of clarity if possible.If a GPIO pin is configured for the fsbl code can it also be used in the Appli code?If so how would you go about defining it in the Appli code? There doesn't seem to be an ...

digilog by Associate II
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  • 0 replies
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Regarding DCMI Data Reception Issues

Our company has a chip that outputs data via DCMI, though it does not employ a standard DCMI interface. It lacks a horizontal synchronisation signal, possessing only a vertical synchronisation signal. Could you advise which chips are capable of recei...

Unwanted received byte with UART+DMA

Hello ST experts,I have a weird experience with UART communication between two STM32G4 microcontrollers. MCU1 sends 10 bytes to MCU2 via UART. Both UARTS are configured with 9600 Baud rate with DMA in circular mode. The Problem arises when the MCU1 i...

TCPP03-M20 with STM32G0B1CBT6 failed to connect

Hello Expert, Could you please provide guidance on the issue below?  We are using the following setup:- MCU: STM32G0B1CCTx- Software: X-CUBE-TCPP 4.2.0 with USBPD Application 4.2.0 Dual Role- Board Part: TCPP0203 v1.2.3 We are developing a USB PD boa...

PaulMinh by Associate II
  • 231 Views
  • 6 replies
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STM32L031C6 reading vdda & temperature

Hi,I have a custom board with an STM32L031C6 and I'm trying to read the internal temperature. The board is battery powered at about 2.6V and the vdda is the same.If I read the ADC channel with vrefint, it returns a value of about 850, which, when pas...

Ufoit by Associate
  • 144 Views
  • 7 replies
  • 0 kudos

STM32G4 Half-Duplex Slave early Complete Callback

Hi, I am using STM32G474RE. I try to read out LTC2440 with the SPI interface. I have configured the LTC2440 as SPI master (In its datasheet the mode of operation is specified as Internal SCK, 2-Wire I/O, Continuous Conversion). The LTC2440 provides a...

IMG_20251202_162259.jpg IMG_20251202_162228.jpg
oeser by Associate II
  • 88 Views
  • 4 replies
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FD-CAN - Protocol Error - ACK Error

Hello, We are facing an intermittent CAN-FD issue in the field and would appreciate guidance from the community. Our system has two devices on the bus (no other device on the bus) using a request–response architecture. The master sends a request ever...

TSola.1 by Associate II
  • 94 Views
  • 8 replies
  • 3 kudos