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RS485 sometimes fails when using STOP2 mode

Hello,Using RS485 for modbus communication.It is observed that, if we disable STOP2 mode then RS485 communication works fine (no frame loss). but asa we keep STOP2 mode then at the time of wakeup I found some frame loss.#define RS485_TX_ENABLE() HA...

npatil15 by Associate III
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stm32h7 LTDC controller CLUTWR register config

hello, When configuring the STM2H7 LTDC display controller in CLUT mode, the CLUTWR register needs to be write. In the official example provided by STM32, the register is cycled 256 times to configure the CLUT table. This method of writing 256 times ...

wangx by Associate
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Resolved! Debugging for Nucleo-H7S3L8 USB implementation

I am verifying USB implementation using Nucleo-H7S3L8.When I executed CDC_Standalone in STM32CubeH7RS using the Debug button and ran the Appli code, the function “HAL_PWREx_EnableUSBVoltageDetector()” in ‘MX_USBPD_Init()’ did not return HAL_OK and an...

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STM32U5G9 SPI TXP does not clear.

Previously had issues with TXP flag never clearing for interrupt-driven SPI.  Changed some HAL code and got it to work.Moving on the DMA, the first 8 bytes received match the transmit buffer and the 9th byte matches a byte farther into the transmit b...

Digital Input Wrong value

I have done a PCB Design with microcontroller STM32L071CZT6 as the mcu. PB15 which is a 5V tolerant pin is connected to a source of 4.9 V with a resistor 270 kOhm in between. I measured the voltage at the PB15 pin to be 4.9 V but, when I set it as Di...

ASiva.1 by Associate III
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  • 2 replies
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Resolved! TIM2 and TIM3 Behaivoural Differences

Hello, I am trying to write some non-blocking motor driver code for a STM32F401Re board. Currently, I am setting the timers to PWM mode and adjusting the ARR to change the PWM frequency using an IRQ handler. This approach is working for TIM3 output, ...

teberle by Associate
  • 144 Views
  • 3 replies
  • 3 kudos

STM32N6570-DK XSPI flash incorrect data

Hello, I use an external flash in memory mapping mode and I have a strange problem. The application is executed from the internal RAM, while the checksum is calculated on the data from the external flash (simple summing of successive bytes in a loop)...

Artur5 by Associate II
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