STM32 MCUs Products

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Resolved! Problem with clock configuration of STM32F401VCT6 MCU - works fine on 42MHz clock, but crashes when set to 84 MHz

I'm programming a custom board built around the STM32F401 MCU and I'm having a hard time configuring the system clock.I'm using a 8MHz external crystal and I'm trying to set up the PLL to get the maximum frequency given by the datasheet, i.e. 84MHz. ...

MKola by Associate II
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  • 15 replies
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STM32H743 : Reading UART7 while writing on UART4

Hello, I have issues with STM32H743 UART. I use Nucleo 144 and I need to get GPS frames on UART7 (at 9600 baud) and display them on UART4 (at 115200 baud). If nothing is sent on UART4, reception of frames on UART7 is good but I want to display some v...

LDess by Associate
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  • 3 replies
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What state are GPIOs in if they are set to Alternative Function, but the controlling peripheral is disabled?

For example, if two pins are set, via the Alternative Function registers, to be the rx and tx for a UART, but that UART is disabled, what state are the pins left in if the various GPIO registers are not changed?Does the rx pin remain an input, and th...

Truoble with i2c using nucleo-g071rb

Hello, I am new to the whole stm32 environment. I've always used arduino in the past and I wanted to try something new for this project.I am having a really hard time setting up an i2c connection between a nucleo board (MASTER) and an arduino(SLAVE)....

MMocc by Associate
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  • 0 replies
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Is it possible to monitor the file copy status by the program in MSC mode? Like file copy from SD card is in progress, file copy completed etc? If yes, what is the method?

I am using stm32 L4 family microcontroller. I enabled MSC mode to copy files from SD card mounted to device to PC. But I want to know how can I monitor the status from my code running in MCU? My program should check whether file copy in progress, com...

VKuma.13 by Associate
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  • 2 replies
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SPI recieve over DMA works only once in stm32f103 on HAL

Hello. I'm trying to receive data from W25Q128 via SPI. It works good, but too slow, if I don't use DMA. If I'm using DMA, it works faster, but only once, second query doesn't return data.I'm reading flash in main loop once in second this way, when d...

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Vthe by Associate II
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Resolved! STM32 controller -0.4V to 3.6V ADC converter

Hello,for an upcoming project I am searching for a low-power microcontroller with a rich peripheral set and the possibility to sample low frequency signals in the range from -0.4V to 3.6V .As far as I have looked it up I will have no chance realising...