Ask questions, find answers, and share insights on STM32 products and their technical features.
Today, for the first time I tried to set up RTC alarm using STM32U5G9 MCU. I need RTC alarm (IRQ) to fire on every second change, that is, when subsecond counter is zero - it is configured to count 32kHz clock pulses from 32k to 0 using 15-bit subsec...
Posted on April 11, 2017 at 12:39Hi all I'm working on a STM32F303CC very simple board(just µC IMU and USB). I need to use a USB Virtual COM (CDC) for a MtoM data transfer with a Windows PC I set up BSP with STMCubeMx and compiling/debuging with Ke...
Hello, ST experts It seems that OTG_USB_DP pin had some problems when this pin is forced to be set to GPIO when connected to USB host. The resistance between this pin and GND is serveral mega Ohm before OTG_USB_DP is forced to be a GPIO. And then it ...
Hello,at I2C slave transmission, the master stops the communication with a NACK and some µseconds later followed by a STOP.If my slave uC is slowly clocked this works. The calling of the I2C Irq handler takes enough time, to see NACK and STOP at the ...
Hi, We are in the designing phase of a STM32H7 board which will control a RGB24 display. To check which package would suit are needs the best we would like to see the RGB pinout on different MCU's. But for some reason I don't find the LTDC interface ...
I am working with Cube, over HAL library, implementing a DMA mem-to-peripheral interface in double buffer mode.STM32H755I have two inputs: EXTI0 as a trigger, and LPTIM2 as a clock.DMA is configured to output a byte through GPIO D0 through D7I need t...
I am trying to use stm32F446 as a master I2C device with LL library and I have 2 main issues.1. After sending a couple of messages(always 4 at most) over I2C I get no start condition when setting CR1->START, if I pause the program a couple of seconds...
I working on motor control application with stm32g484ret6.Timer1 generates 3 PWM lines with complementary lines (with some deadtime) in center aligned mI have ADC readings to sample the phases current.Timer1 output trigger TRG0 is defined as update e...
Hello to all developers!)I am interested in the following question: is it possible to use the pins of the STM32G031J6M6 microcontroller first for programming (SWCLK, SWDIO), and then for another functionality, for example for UART?Maybe there is some...
Hi,does the STM32H563ZIT6 have an LDO and/or an SMPS? Contrary to other micros, I cannot find any table or details about it other than the block diagram common to the whole family (screenshot below) and it says "LDO and/or SMPS". Where on the datashe...
