STM32 MCUs Products

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T bit confusion

Hi,1.As it is mentioned in CM4 user guide and also explained in tutorial, 0th bit of PC is directly loaded to T bit.And CM4 supports only thumb state ISA.To execute/decode instructions in Thumb state 0th bit of PC should be 1 which means PC should al...

Screenshot 2025-05-23 141117.png Screenshot 2025-05-23 141211.png

Interrupt Vector Table

Hello,As per CM4 guide and TRM of Nucleo f446re,interruot vector table is array of function pointers and each pointer holds the entry address(initial address) of each IRQ_handler, Where interrupt IRQ_number is used for indexing.While debugging I fail...

Screenshot 2025-05-14 222309.png Screenshot 2025-05-14 222359.png Screenshot 2025-05-14 222411.png

Floating ADC value even when pin is connected

Hello !I have to admit that I am stumped on this problem, I've been trying to make it work for the past few days.My issue is with an STM32F301K8T6 (LQFP32) and its ADCs : I have two reflective optical sensors (ITR8307) that are connected to ADC_CHANN...

LPUART1 wakeup fail in STOP2 mode

Hello,I'm using LPUART1 (STM32U0) for modbus communication and using STOP2 mode to go sleep until new modbus query has requested.Strange things happen, on console I can see prints like "Target is not responding, retrying...".Here is my clock configur...

npatil15_0-1747980221608.png
npatil15 by Associate II
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  • 1 replies
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STM32F105RC USB Device not detected

Hello.  I have a custom board with F105RCT7. The summary of my problem is the USB interface is not working at all. The computer does not detect anyting. The board is configured as a VCP device. I have a Nucleo-H743ZI-2 board and done some tests with....

hckar_0-1747988544280.png Cattura.PNG
hckar by Associate
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  • 0 replies
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STM32F3348-DISCO HRTIM DMA PWM Sine Wave

Hi all,I wanted to make a post to shine some light on how to configure the HRTIM DMA on the STM32F3348-DISCO (and probably other ICs w/ HRTIM capabilities).A few posts I've seen have boasted the same solution, but have convoluted the use of a single ...

DMA_Settings.png

BOR in STM32U083

Hello,I found some discrepancy in BOR configuration for STM32U083CCT6 processor between reference manual [1] and HAL implementation [2]. It concerns BOR_LEV[0:2] bits (bits 10:8) in FLASH_OPTR register. The RM [1] talks of four levels (000: 1.7 V, 00...

KSzcz.2 by Associate II
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