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Tx to Rx UART DMA loopback

Hello,The Tx and Rx pins of UART 4 in my code are shorted. I want to send an incrementing array from the Tx pin and receive it back from the Rx pin.For this I wrote a for loop that increments every element of the array. The for loop is run from the c...

skon.1 by Senior
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Resolved! Sending data via I2C doesnt work properly

Hi,I want to controll a ST7032 Display Modul via I2C with a STM32G071G8 MCU. Unfortunately I can't manage to send data bytes to the Display. For sending data I use the HAL function HAL_I2C_Master_Transmit() as followed: (for testing)HAL_I2C_Master_Tr...

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HReet by Associate
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  • 2 replies
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STLINKV3 VCP1 & VCP2 BREAK & RTS command

Dear All,I try to use the 2 VCP on the STLinkV3 and I have some problem with standard command...I cannot Send a BREAK command on the TX line I cannot send RST ON/OFF command on the RST line of the VCP2When I use this command nothing append... Any ide...

FDarr.1 by Associate II
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Resolved! How to trigger ADC conversion via timer correctly?

Dear Community,for some time I've tried to set up the hardware of a STM32F429ZI to periodically trigger a discontinuous ADC conversion with 2 channels.I'm using TIM1 in PWM mode to generate CC interrupts with TIM CH3. The timer is running in center m...

CBrom.1 by Associate II
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  • 4 replies
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STM32H745 TIMER peripheral to memory DMA

Hi,I'm trying to get a timer with external clock (ETR2) to trigger a DMA transfer from GPIO to memory on a STM32H745 with no luck.I'm using cubeMX to generate the code below.The timer seems working. TIM2_IRQHandler is triggered periodically.However n...

Mvan .31 by Associate II
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  • 2 replies
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STM32L451RE - How to detect a wakeup event in shutdown mode?

STM32L451RE - How to detect a Wakeup event in shutdown mode?Hi,I connected a Accelerometer interrupt on Wakeup Pin 2. In Standby mode "HAL_PWR_EnterSTANDBYMode();" I can wakeup MCU by moving Accelerometer.After that, the flags "PWR_FLAG_WUF2" and "PW...

CGern.1 by Associate
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LPTIM pulse counter

Hi,I am using stm32L431, in the documentation says that when using LPTIM pulse counter the 5 first pulses is lost, after this the counter works fine. But in my project this situation is not acceptable, because in some cases I use less than 5 pulses.I...

GFont.1 by Associate III
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  • 2 replies
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We are using the STM32F746 in combination with an exernal SD-RAM. The clock rate for the RAM is set to a frequency of 96 MHz.

We are using the STM32F746 in combination with an exernal SD-RAM.The clock rate for the RAM is set to a frequency of 96 MHz.At radiated emission measurement we are above the limit line at 192MHz (double RAM clock)Is there a possibility to activate ji...

MHase by Associate II
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  • 1 replies
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