STM32 MCUs Products

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Forum Posts

Pull up /Pull down of GPIOs in STM32F427VGT6.

Hi,Could you please let me know the default state(Pull up /Pull down) of GPIOs in STM32F427VGT6. Especially I need to know the default state of GPIOs PC4, PB10, PA7 inorder to verify the strapping options for an external Ethernet phy interface. Iam i...

AThom.17 by Associate II
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  • 3 replies
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Resolved! TIM8_CH2 and TIM8_CH2N at the same time ?

Hello,I am trying to drive a piezo with complementary output from a timer. I am using TIM8_CH2 and TIM8_CH2 as control logic for my piezo command. I expect it to be complementary to increase volume of the piezo. TIM8 is configured as slave of TIM2 th...

SBACO by Associate III
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  • 3 replies
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Resolved! STM32H7 series programming flowchart

I remember seeing a flowchart showing the order in which interfaces are checked for activity during programming when the BOOT pin is pulled, but I have been through the datasheet, programming manual and Google and can't find it now. Can anybody poin...

MikeDB by Lead
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H745 MDMA document error? (RM0399)

In 15.5.12, the register definition for mdma_ctbr , i am having trouble understanding the dbus and sbus bit descriptions. Shouldn't the choices be between tcm/axi and ahb/system and not system/axi and ahb/tcm as the latter is mixing the domains toget...

RMcCa by Senior II
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STM32H750 UART4 + RS485 + DMA not working

Hi,I have some problems with UART4 on STM32H750. Uart4 is asynchronous RS485 mode mapped on PC11,PC10 and PA15 (DE).I tried to SWAP RX/TX without succeed. Finally, I swapped it by wire.DMA not working properly. DMA Counter works. Memory address neve...

BSANT.17 by Associate II
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WIFI configuration

I am using stm32F103C8T6 controller, How to configure ATWINC1500 for WiFi establish?Please help me for how to develop connection between stm32F103C8T6 to ATWINC1500.

STM32F105 USART not receive DATA continuous using ATMEGA16.

I am using STM32F105 (25Mhz crystal freq)with atmega16. cycle of data sending:1.STM32 to ATMEGA16.2. ATMEGA16 to STM32.first cycle is working fine but in second cycle atmega send data perfectly but stm32 not receive receive continue data.

vivek by Associate II
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  • 4 replies
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