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...
The new STM32H7R/S lines are built on the success of the STM32H7 series, offering even higher performance and security at a lower cost. The STM32H7R/S is a bootflash-based MCU powered by a Cortex®-M7 core running up to 600 MHz, with 64 KB of user fla...
What would cause the LR register to be misaligned?I occasionally get an UNALIGNED exception running Ethernet (lwIP). I suspect the DMA but I implemented as it is in the example and the https://community.st.com/s/article/FAQ-Ethernet-not-working-on-ST...
HelloI use the Nextion intelligent display with STM32f4 . Display communicate according to UART protochol. I can communicate but receive data is shifting .uint8_t Rx_data[4]={0,0,0,0}; // receive data void HAL_UART_RxCpltCallback(UART_HandleTypeDef *...
Hi all, how are you?, I'm adapting some libraries for nextion HMI's to use with STM32F4 MCUs, then one of them uses the MCU timer which in my case is systick to determine if time has expired, the function is the following/* * Receive string data. *...
It is necessary to write the calibration coefficients into the stm32h743 memory. What I need:1. Writing to eeprom2. Reading eeprom3. Erasing a data cell eepromAn example should be on "cmsis".Thanks for your time
Hello,I am having an issue with DMA1 getting "stuck" during operation. While DMA1 is stuck, DMA2 continues to run without any issues. I realize that this is likely a race somewhere, however I am hoping for any insight into how or why the DMA controll...
The company has a very old product with LPC2468. I need a replacement from STM32. Please give me a suggestion. The device is powered by 2 AA batteries, has a black-white LCD, and a micro-USB port for connection to PC. I want to keep the same power co...
Hi all, how are you?. I'm doing a program where I need to send several separated messages over the serial port using the UART 1 of a STM32F401VE after receiven a specific message through the serial port too, right now I'm capable of send the first rs...
Hello,I am experiencing some weird patterns on one of the 3 SPI buses on CLK and MOSI.This project was initially developed off a nucleo H743ZI3. I am using 3 SPI ports, 2 of which I have no problem with. These 2 are used to communicate with another M...
How to measure the time from __asm__("nop") on STM32F730 using 216 MHz clock? I did try to check it using osciloscope without success. The time is bigger than 1/216 MHz.
Hello - I have been working with the l051 for 2+ years now on a product, using i2c-1 as slave to outside world and i2c-2 as master for local board downstream devices. while my interrupt-driven code "works," I continue to have bugs filed about both ma...