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New possibilities for the ultra-low power segment!

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...

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STM32 PWM with variable Frequency

Posted on March 19, 2018 at 11:34Hi at all,I am working since some days with STM32 ( + HAL, CubeMX), because I need a Source for a PMW with variable Frequency, where f = 20..200kHz and Duty Cycle 0..100%.To realize this I started with a regular PWM ...

STM32L452 SPI Bootloader

Posted on March 20, 2018 at 12:05Hi,Does any one know why STM32L452 SPI bootlader takes alot of retries to get an ACK?Same code tested on STM32L053 got ACK on the first try, on STM32L452 it takes 16-24 retries.Michael

priven by Associate II
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Code for soft reset STM32F3 series MCU ?

Posted on March 20, 2018 at 07:54I am working STM32F303CC MCU. Trying to find sure shot way of soft resetting the device. Previously I tried with NVIC_SystemReset()  . It was and miss. On some boards it worked perfectly and on other boards the syste...

wake up from stop mode using I2C on X revision

Posted on March 20, 2018 at 10:46Hi everybody,I'm trying to wake up the MCU STM32L051T6 from stop mode using I2C.i saw that it is a very common problem.i read the errata sheet and it reports tha on X revision the problem is fixed.Now i'm using the r...

STM32F0 WITH RN2485 LORA,RADIO TX RESPONSE ISSUE

Posted on March 17, 2018 at 12:33Hello,I have a customized board for STM32F030R8x microcontroller interfaced with Microchip Lora Module RN2483 over UART.I want to establish P2P connection between Lora module. When i am connecting the modules directl...

Resolved! STM32F1 and TIM3 PWM - LL drivers

Posted on March 19, 2018 at 20:11Hi,Today's F1 v1.6.1 HAL driver pack fixed all issues I had with GPIO so decided to move forward with TIM3 and LL.The goal: use TIM3/PWM to blink the BLUE LED (PC8) - STM32VLDiscovery.CubeMX generated code:/* TIM3 in...

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I2C Multimaster

Posted on January 12, 2018 at 11:12Hi,We have a 'distributed' system in place where we have a single I2C master (STM32F7) and a number of I2C slaves (STM32F0).  I understand that I2C multimaster is supported, where you have a number of masters speak...

Forced output mode [17.3.7]

Posted on March 19, 2018 at 18:15Hi, I'm currently using an STM32F413 and I would like to use the forced output mode on the TIM1 with 3 PWM already configured. I followed the instructions noted in the reference manual [17.3.7] : - CCxS bit to 00 in ...

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