Forum Posts
Six SPI continuously monitoring
Hello, I am working on STM32H7 series controller, I have to continuously reading the data of dac through spi and vtg ,and send over an GUI application so every 50 microsecond I have read the values of 6 spi , so I have do the calculation in stm32 or ...
Is the STM32F43x underlying chinas import/export regulations?
Is the STM32F43x under any import/export regulations, if you want to export a product with F43x to china? Because for example china has theyre import and export list for crypto devices. Or in regard of Wassenaar Arrangement? Even tho our product does...
How do I create an Interrupt for UART_FLAG_TXE?
I have a STM32L081KZT and I am using the LPUART.I want to create my own Interrupt (handler) based on UART_FLAG_TXE. So basically a function that gets called whenever the UART_FLAG_TXE bit is set.In the GCC compiler manual I have found this:void f () ...
Problem with configuring/transferring an SPI with DMA (And CRC).
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...
What would be a modern equivalent to an STM32F103, preferably in a 48 pin package, and which wouldn't require too many alterations to existing code and PCB?
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...
STM32F4 TXE flag not activating
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...
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 ...
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 ...
