STM32 MCUs Products

STM32H7 chip shortage - when are we going to get any version of STM32H745/755 ???

I am starting layout with a STM32H745B (208 LQFP) next week for a core part of our new product line. I need a small quantity for prototyping - 10-20 or so.Distributors are showing 52 weeks delivery for this and all H745 parts. Every version of H7 is ...

rg. ST32F405 timer 8 does not count again after stopping it and writing the CNT Register on the fly. Alfter enabeling by software (TIM8->CR1 ||= 0x0001;) it stayt still and does not count again.

STM32 lower power consumption

Hi everyone, I need the lowest possible current consumption for my project. I need to power my MCU with external supply. Currently I have a Nucleo F401RE, which is not so good for low power applications it seems. It's connected to a X-NUCLEO-NFC04A1 ...

How to read values from external ADC of steval-stwinkt1b

STM32 RTC Backup registers are limited to 5 on STM32L151RBT6A device

We are using STM32L151RBT6A device. As per the specification we should be able to have access to 80bytes of RTC backup memory , but we are able to access only 20bytes of Backup registers memory. As per RTC backup registers description , for value li...

How to configure the NSS with software

I have the problem that I don't get the NSS configured correctly on my SPI transmission. I should get according to reference Manuel a NSS signal that switches just before the first bit and just after the last bit. I send several different data one af...

Is there any one who have official documents for STM32L072CBT6 Revision 1 and Revison P released for end-customer use?

We received a batch of MCUs, STM32L072CBT6, LQFP48, on suffix of marking section has marked revision “1�?, marking on MCU are also marked with “1�?.As per STM Errata sheet, there are different markings such as 1, P, Q, Z.But I can only find related i...

I want to get the trigger for every 8th pulse in the timers?

I am using the stm32h745ziq-nucleo board . I am generating the pulse in the cm7 and I am trying ton capture the falling edge of the pulse. I am getting the falling edge capture for every falling pulse But I want to capture only the 8th falling edge o...

Howto implement I2C slave clock stretch timeout.

Hi,I like to implement a I2C slave on a STM32G081 with using stm32cubeide.Basically, it is working.Sometimes, the system communication stuck while a transaction on the STM32 I2C slave is active.How can I implement a clock stretch timeout on slave sid...