STM32 MCUs Products

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Resolved! RTC reset with VBATT

Hi,I have an STM32G0 with VBATT input for the RTC. When I restart the circuit, the time is reset.At the power On I write this instruction :  HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR1);Before of the Power Off :HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR1, 0x32F...

Prisma by Associate II
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  • 6 replies
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Resolved! C++ for firmware development - how do I get started?

I have decided to implement my firmware in C++ on an STM32 Arm Cortex M4 microcontroller. However, I find it difficult to get started. I lack good examples and learning tools.Does anyone know good examples of firmware in C++?

CH_bot_ by Associate II
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  • 4 replies
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Resolved! Is it possible to Connect an STM32H745ZI-Q(after configuring the CAN Engine) to a CAN Bus operated at 24 Volts?

Hello ST Community and Experts, I have an STM32STM32H745ZI and i have programmed it to send and receive some CAN messages from an other STM32 F446RE Nucleo Board. I would like to know if i can use STM32STM32H745ZI to connect to a different CAN Busno...

KA by Associate II
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  • 2 replies
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Resolved! Executing code with stm32f469 from SDRAM

Hi, My board consists of stm32f469 that interfaces SDRAM via FMC. I want to execute code from SDRAM. Code is loaded from internal flash to SDRAM at address 0xc0000000. But running the code from this region causes hard-fault. Is there a restriction wi...

ari_v2 by Senior
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  • 6 replies
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Resolved! How to detect STM32F417 MCU reset source

I try implement a function to detect how the MCU start from, reset from watchdog or hardfault or recycle power.Watchdog reset, if the code goes to dead loop, it will trigger WD, but I have no good idea how to capture it.Recycle power, I can use PVD_I...

New.Fish by Associate III
  • 1117 Views
  • 3 replies
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STM32F7: Is it possible to generate PWM signal based on external freq source (not clock src!) using timer's external input trigger?

Hello,I've not much experience with all STM timer modes. I have a DDS-based freq source which produces meander wave. On base of this src I want to produce PWM signal using STM timer. As I understand, a regular way to do it is to pass the DDS src as e...

Wowa by Associate III
  • 1243 Views
  • 4 replies
  • 0 kudos