STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...
I can't get a data transfer over the SPI bus with my currently implemented code. I can see the CLK and CS but there is no output via MISO (only zeros are probably transferred). If I execute a transmission manually via "LL_SPI_TransmitData16", I can s...
I've spent the last 2 years developing a product using an STM32F103, but I've recently discovered that the ones I've been supplied with are fakes, which have a tendancy to blow up :( It seems as if no genuine F103s are available now, so either I have...
We have a very simple, blocking, UART transmit routine, which writes a byte and waits for TXE to become active. Every so often, and I mean something like 1 in 100,000 or more calls, it gets stuck at line 3 of the code pasted in below; TXE never becom...
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 ...
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 ...
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...
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...
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...
