STM32 MCUs Products

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Resolved! Stm32h747-Disco uart to arduino

UM2411:Caution: The I/Os of the STM32 microcontroller are +3V3 compatible instead of 5 V for ARDUINO ®Uno V3This mean can not conect to Stm32h747-Disco with pines for uart to arduino directly o no ? If hay problem with this how to send data o solve t...

wjian.2 by Associate II
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Resolved! Finding/Porting Examples?

Hello, I have the STM32G474 Discovery Kit and am just attempting to get a blinky LED program to work on it for right now. In the STM32CubeIDE, I imported an example, was able to get it to build correctly (after changing references from caddr_t to voi...

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Resolved! HAL and GPIO EXTI

If I register a callback function for GPIO EXTI and I have EXTI on multiple ports for the same pin (e.g. PA0 and PB0) how does the callback distinguish between the ports when the event triggers?

mccabehm by Associate III
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Resolved! Timer interrupting on MCU reset

Hello I have set the timer7 for 1 minute interrupt. It is working at every minute as expected. But the interrupt is also triggered as MCU is reset. I have set global counter for increment in timer7 callback. As soon MCU is reset , Timer7 callback is ...

Nico3 by Senior
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Resolved! PLL clock division in STM32H7 for fadc_ker_ck

Hi,a footnote(4) in STM32H7 reference manual RM0468 Table 56 regarding the maximum allowed frequency for ADC says"With a duty cycle close to 50%, meaning that DIV[P/Q/R]x values shall be even".Does this recommendation apply to the actual DIVXx regist...

HAL_SPI_Receive_DMA returns HAL_BUSY

I am trying to implement an EEPROM driver which uses DMA. So far, I can implement polling and interrupt version. HAL_SPI_Transmit_DMA works OK, but HAL_SPI_Receive_DMA returns HAL_BUSY, so even the first reading process seams OK, it actually doesn't ...

Probelm to send data to arduino from stmh747i-disco

if i usesprintf(msg, "%s %.0f%%", NN_OUTPUT_CLASS_LIST[App_Context_Ptr->ranking[i]], *((float*)(App_Context_Ptr->Ai_ContextPtr->nn_output_buffer)+i) * 100);HAL_UART_Transmit(&huart8,(uint8_t*)msg,10,1000);To transmit “Beer 50 %” to arduino But the ar...

wjian.2 by Associate II
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