STM32 MCUs Products

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STM32F7 Triangle-wave generation

I am trying to control the amplitude of a triangle wave, while the frequency of the waveform should always be 1kHz. Is this possible to do?The reference manual says that I can control the amplitude of the signal using the register DAC-> DHRx. Further...

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Resolved! “No STLink detected�? for STM32F469I-DISCO.

Hi. I bought stm32f469i and Nucleo-h745 boards. H745 connects to STLink no problem. But the F469 discovery board doesn’t connect. I tried installing reinstalling drivers, connecting to other computer nothing worked. I couldn’t find another cable that...

sid90 by Associate II
  • 1111 Views
  • 6 replies
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MCO pin showing 24 MHz instead of 48 MHz while debugging

I use the MCO pin to test my clock configuration on a STM32F072RBT6 board. While I'm debugging with a ST-Link/V2 adapter the MCO output shows 24 MHz instead of the expected 48 MHz.Using the exact same software (no changes in clock configuration) and ...

fxrb by Associate
  • 624 Views
  • 2 replies
  • 0 kudos

entropy source failed

Hi,Im using the STM32F746NG Discovery Kit MCU. Im getting following error when trying to make a HTTPS connection:mbed_tls ctr_drbg entropy source failed.Although I enabled the RNG and CRYP Module I put following macros into my mbed config.h:#define M...

Anon767 by Associate II
  • 588 Views
  • 0 replies
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Over the Air Firmware suggestions

We are developing a product and are stuck at Firmware over the air updates. It seems like we will need a system that meets the following requirements:From a firmware perspective, the platform should support delta updates so the entire firmware packag...

UShah.15 by Associate II
  • 575 Views
  • 1 replies
  • 0 kudos

STM32F7 interface to DS3231MZ+

Hi,We are trying to interface STM32F76 custom board to DS3231MZ+ RTC chip ,we are able to set and retrieve time using I2C and it is incrementing properly as long as board is powered up. But Time and date are reset to 0:0 and year 2000 after board...

Tp by Associate II
  • 1674 Views
  • 4 replies
  • 0 kudos

DS3231 RTC reset pin

We are using STM32F769 NI with DS3231 MZ+ rtc , the rtc is not holding time after a power reset .The reset pin in the DS3231 circuit is floating , althouigh reset pin has an internal pull up of 50k , can i leave the reset pin floating or should i con...

SNNV by Associate II
  • 1152 Views
  • 1 replies
  • 0 kudos