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...
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...
I'm developing application on stm32H7 and a need to execute small function from RAM. I add RamFunc derective, and describe in linker *(.RamFunc) in .data section. As a result, i certainly see, that function code moved to RAM address space. I compare ...
