STM32 MCUs Products

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stm32h7 uart IDLE

Hi,MCU - STM32h743I have a use case where I need to receive a large chunk of data on UART, and the RX data length is unknown. I have read ST articles about how to do this using the IDLE feature with circular DMA (HAL_UARTEx_ReceiveToIdle_DMA). Howeve...

Daan1 by Associate II
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Resolved! STM32F7 RS485 DE Enable Not working

Hi I have been trying to configure the RS485 and trying to enable DE line. Though I have configured the DE line correctly, but still when HAL_UART_Transmit() is called, it just stays low and never get enabled for D to tranmit the data to the destinat...

DESTM32 by Associate II
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Firmware updates and flash banks on an STM32L496

Hello Forum, I have a question regarding OTA and toggling between flash banks on a STM32L496. I have read many forum posts on here relating to this and I have reached a point where I need assistance as debugging iteratively is taking a lot of time. I...

cambesol by Associate
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Resolved! Has STM32G0b0K system DFU bootloader or not?

STM32G0B0 datasheet DS13565 Rev 3 in Chapter 3.6 Boot modes tells: "• USB on pins PA11/PA12 (except for STM32G0B0KE)" This reads like DFU system bootloader is not available. However AN2606 Rev 64 has no restrictions for DFU bootloader on STM32G0B0. I...

Resolved! STM32F072RBT6 USB Host Device

Hi,I'm using stm32f072rbt6 mcu for my project.And I want to write data to my usb flash drive as a txt file.I have researched some tutorials but to do this usually used mcu's such as stm32f767zit6 and these mcu's have USB_OTG_FS feature which my mcu d...

How to find DMA channel for Timer

We are working on STM32C071KBU6 In STM example TIM_DMA, I see it uses PA10 - TIM1_CH3 with DMA channel 5, but I could not find anything about this. Anyone know how to find this information? I would like to use different pins but don't know what DMA c...

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Dat Tran by Senior II
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Resolved! PA2 pin goes low on power up for no reason.

Hello to everyonesIn a project where I used the STM32G0B1RTC6 MCU I have the following problem:The PA2 pin used as uart2 TX sometimes goes low at power on and stays there forevereven if I try to reset the CPU again. If it is configured regularly then...