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Problem with I2C, don't receive ACK

Hey guysI'm using a STM32H743ZIT6 on a Nucleo-144 Dev Board and want to communicate with a BME280 Sensor.For this I'm using a library recommended by somebody else and when I begin the I2C transmission the chip sends the correct address, however, the ...

NC??l by Associate
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Resolved! Timer doesn't work (STM32F767 + TIM3)

Hello. I have this init TIM3:void Start_Timer_3(void) { LL_TIM_InitTypeDef TIM_InitStruct;   LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_TIM3);   NVIC_SetPriority(TIM3_IRQn, 3); NVIC_EnableIRQ(TIM3_IRQn);   // 50MHz clock // 1000 Hz, up...

How do I change the DMA stream?

Hello everybodyI am a student trying out some things with the evaluation board STM32F769I-EVAL.First, I think it is important to say that I have nearly no experience with STM controllers.So, let's look at my problem. The main aspects I am looking at,...

Resa111 by Associate
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Use rising/failling edge to start PWM

Hello, I work on STM32F407.I want to start the PWM 1 on the rising edge of the main PWM and start the PWM 2 on the failling edge of the main PWM. But I don't know how I can detect the rising/failling edge...Can you help me please ? Thanks a lot.

FightKol by Associate II
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HAL_CAN_AddTxMessage() issue

Posted on June 13, 2018 at 21:06 Hi, I am using Nucleo-144 connecting CAN RX/TX PD0/PD1 to external CAN transceiver, PEAK. The function is pretty straight forward. Prepare data then call HAL_CAN_AddTxMessage() to transmit. CAN_TxHeaderTypeDe...

STM32F446xx - measuring system clock on MC01

Hello everyone,I have a development board with the MCU specified in the title. I have used Keil to create a project and flash my board. According to what I understood from the documentation I read and by looking at the startup code:MCU is by default ...

PPopo by Senior
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Resolved! Unable to set PLL as main clock derived from the HSI

Hi All,I am working with the STM32F302R8. I want to set the system clock as the PLL through derived from the HSI. I want a clock of 64MHz which I should have set through the appropriate registers.I think I have set all I need however, after the RCC c...

glenn0010 by Associate III
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STM32F427 suddenly in Read Protected Secure Mode

Developing code / debugging 2 days ago and all was well.This morning I attempted to flash the mcu (using ST-Link / V2) and it reported back that the Processor failed to halt.Switched to my J-Link and it reported that the MCU was in an Active Read Pro...

Joe.H by Senior
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