STM32 MCUs Products

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Subtle Q on 32F4 dual DAC (32 bit data feed) mode

I am finding that with DAC1 triggered from TIM5, DAC2 can be set either for the same trigger (the doc implies that) or for no trigger ("software" trigger). Both work.I would have expected software trigger / no trigger to work on DAC2 because the 32-b...

PHolt.1 by Senior III
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  • 13 replies
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NUCLEO-H745ZI-Q doesn't runs my program

Hello,I've ordered two NUCLEO-H745ZI-Q at a same distributor, on a same time.It seems that one CPU's board is "bricked" : The software runs fine on a board. the same software literally doesn't run on the second board.The embedded debugger tells that ...

ADe C.2 by Associate
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  • 2 replies
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SPI DMA STM32H742VI with LL with Polling

Hello,I have tried to implement a simple SPI driver. Only with LL Lib. I would like to use DMA and I will do it without interrupts.So it works now. But for me it is not clear how to poll if the transfer is finish in the right way.So I use rx and tx d...

STM32H7 , Very slow processing time ?

Hello, i am using stm32h723zg nucleo board in my project. my system clock frequency 480 MHZ, that means it does an instruction for about 2,08 ns as well but the time i measure9-10 ns , That's too much.(application ; Writing adc value to another v...

0693W00000GZ1UQQA1.png 0693W00000GZ1U1QAL.png

Find out a wakeup source on STM32H7

Im trying to put STM32H743 in stop mode with wakeup from external interrupt. So far core wakes up immediately afterHAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFE);EXTI_CPUPRx registers all set to 0, so what wakes up the CPU? Is the...

Resolved! [SOLVED] NUCLEO F207ZG TIM6 timer half speed using CMSIS

Hello, I need to perform some task without using HAL libraries. I am using CMSIS. To start, I have set up a blinking led with timer. I programmed the clock as per attached picture. The source clock of TIM6 should be 60 MHz but the led behaves as it w...

ABert.5 by Associate II
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  • 5 replies
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in STM32H7 ping only works when reset button is pressed but not working when i completely shut off the supply and restart the mcu?

I am working on STM32H743VIT6 and using LAN8742 as phy. i generated the project using stmcube using repository stm32h7 1.5.0 . I used the same mpu and system clock configuration as in the ST examples. When I switched on the supply to mcu, the ping d...

Akash_k by Associate III
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  • 4 replies
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I made custom board using stm32f207 MCU and In few of board I have faced issue that board stops working after some time and, In STM Utility it shows RDP readout protection level FF and it doesn't execute the code and unable to reprogram.

Read out protection issue ,I am unable to reprogram the board and the previous code is not executing as well. I have faced this issue in multiple boards .I am unable to debug this issue since long and the last option is to replace mcu with new one. A...

TVARS.1 by Associate II
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  • 4 replies
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