Supply current in unprogrammed state
How can I calculate the supply current of the MCU (STM32L471) in unprogrammed state? We use it in an ultra-low power application and need to know the battery drain during production and storage.
STM32 MCUs Products
Ask questions, find answers, and share insights on STM32 products and their technical features.
Forum Posts
Not able to wake stm32476 from deep-sleep (stop2) using EXTI on GPIO
Hi,I am working on "Deep sleep" and "Wake- Up" on STM32L476 MCU. It looks like that MCU is going in to Deep Sleep (STOP2) mode, but I am not able to "wake up" using the GPIO EXTI (GPIO External Interrupts). Following the code snippets, which I am usi...
Why stm32H743zi has longer access time to GPIO interface?
I have two nucleo-144 boards, stm32F767zi and stm32H743zi. Both cortex-M7, pin compatible, and pretty close in AHBx (GPIO) clock, 216 vs 200 MHz.Testing TFT LCD display library, that required fast 8-bits access to the LCD data bus, I discovered that ...
RTC ALARM A Stops working after Mid-Night
I'm using STM32L152RE with FreeRtos for our project. We use RTC HAL library to handle the Calendar alarms. I'm in a strange situation where the RTC_ALARM_A does not generate an interrupt after 12 midnight. The current system is setup to generate an...
String compression for UART on STM32F7
Hi, I'm working on a project in which i need to send strings through UARTMy throughput is limited because i'm working with Xbees, so i want to compress my ascii strings (that are long 1024 bytes and with simple structure because they are in csv forma...
Can STM32 read external FIFO through the FSMC interface?
I want to use FSMC to read external FIFO implemented in an FPGA. Since there is no mode of FSMC that can match FIFO interface exactly, so I want to use the modified synchronous multiplexed PSRAM mode. The plan is like thisA[25:16]: Ignored, don't ...
FMPI2C on STM32F407
Is it possible to use Fast mode I2C on STM32F407 ? I looked everywhere for the I2CX pins GPIO but Can't find them at all.
Resolved! Micro controller
Hi All,Can anyone suggest a STM controller supporting following features.1) 1 I2C Port.2) 4 UART Ports.3) 20 Gpios4) 1 RGB LED PinThanks,Ashok
Cheap Evaluation Board with SD-Card
Is there a cheap eval board e.g. Nucleo-64 with an SD-card reader. Also A cheap shield for Nucelo-64 with SD-card socket would be ok.Its for a simple logger application but I am hesitant to make a board for only a uC Sensor and SD-Card.
How to use SPI + DMA in Full Duplex Mode
Hey guys,I'm currently struggling to setup my SPI to work in Full Duplex Mode together with an DMA.I'm using 2 STM32F4 to communicate via SPI + DMAThe Initialization for both MCUs was created using STM32Cube.This is the generated Init Code for the ma...
