STM32 MPUs Products and hardware related

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strex calls DAbt interrupt

Processor stm32mp157it runs Opencv in baremetal modesingle-tasking environment.when calling a methodvoid UMat::addref(){if( u )CV_XADD(&(u->urefcount), 1);}we get DAbt.The disassembler shows a set of instructions 388 CV_XADD(&(u->urefcount), 1);c013c...

Resolved! STM32MP157 GPIO access

Hi team,I have an STM32MP157 board with a Cortex-M4 processor. I have a simple task, which is to toggle the GPIO at maximum speed with accuracy, ensuring that the clock width does not vary.The maximum toggle speed we require is approximately 15ns bet...

kundanJha by Associate II
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  • 9 replies
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Resolved! STM32MP135D u-boot _regulator_enable:169 regul usb33 set state failed with 0xffff0000

I am trying to create a new board based on STM32MP135D.An error occurs while running u-boot on optee layer.The log below is the log where error occurs. Full log is attached as file.  Hit any key to stop autoboot: 0 Boot over usb0! D/TC:? 0 tee_ta_in...

maxswjeon by Associate II
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  • 1 replies
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Resolved! Automated unit testing for Yocto builds

Hi! Is there a way to run unit tests automatically on the STM32MP157-DK2 board? I've managed to flash the device using the STM32 Programmer CLI, but after flashing, I need to manually switch the bootmode to boot from the SD-card.It would be great if ...

salmmike by Associate II
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  • 1 replies
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Resolved! There is no audio data output from the 3.5mm headphone jack after the HDMI node is disabled

Sorry to bother you.I don't need the HDMI chip(sii9022) in my project. So, I first removed the HDMI chip on the STM32P157F-DK2. In fact, I manually removed it with a soldering iron. My SDK and development environment are based on "stm32mp1-openstlinu...

mteaching by Associate III
  • 4218 Views
  • 3 replies
  • 1 kudos

Gigabit Ethernet GMAC on stm32mp157a

hi,st engineer I am required to conduct Ethernet debugging on an stm32mp157a-st-discovery development board running the RT-THREAD operating system. Within the stm32mp157 Processor Reference Manual, I've encountered such option as follow:10/100M Gigab...

gantener_0-1705288576578.png gantener_1-1705290010207.png
gantener by Associate
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  • 1 replies
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STM32MP1 M4 programming

Hi,Currently i am looking for an easy way:to change the device tree, to assign peripherals to the M4 Coprocessor for quasi real time applications. i do have a STM32MP157F-DK2 board for testing and also a board with Debian, which i purchased from a di...

STrat.1 by Associate
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  • 2 replies
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