STM32 MCUs Embedded software

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change pin status UART to GPIO

Posted on July 05, 2018 at 08:10Hi everyone, in my system (freertos based) i need some low pulse before sending uart datas. So i must change tx pin to gpio and send low pulse along appx. 100uS and after that i must rechange it to uart fastly. How ca...

Resolved! Dose cubemx support stm32h7 using other phy ic

Posted on July 01, 2018 at 15:32Dear all:     Dose cubemx support stm32h7 using other phy ic, not only using lan8742, like stm32f4. The first pic is cubemx support stm32h7,the second pic is cubemx support stm32f4,the different between two pics is th...

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Yi Zhou by Associate III
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STM32H7 SCB_CleanInvalidateDCache ERROR

Posted on April 23, 2018 at 17:03I'm using CubeMx to generate the basic configuration for NUCLEO-H743ZI board;Default settings are used, FREERTOS and LWIP flags are enabled sys timebase source set to TIM1as suggested by CubeMx. Project files are gen...

Resolved! STM32CubeMx LSE drive capability issue

Posted on June 28, 2018 at 17:07I found an issue with the latest (and updated) STM32CubeMx when generating code both for SW4STM32 and for  MDK-ARM relate to STM32F746 board.Changing 'LSE Drive Capability' from ''LSE oscillator low drive capability' ...

Resolved! Custom STM32F469 board with Standard Peripheral Library 1.8.0: Clock wrong after power up, correct after several resets

Posted on June 27, 2018 at 23:15Hello,I am developing a custom board that mounts a STM32F469 MCU. The board is very simple, and the circuit embeds only the main 8Mhz crystal and the RTC 32.768 one. No embedded peripherals except for a couple of stat...

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Digimorf by Associate III
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STM32H7 LwIp Ethernet

Posted on July 03, 2018 at 17:08Hi everyone,I am new to programming Ethernet applications and wanted to start with just sending Ethernet frames with my stm32H7 Nucleo Board. The only Middleware I use is LwIP. My problem is, that the programm itself ...

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IEEE 802.1Q Queuing Frames

Posted on July 03, 2018 at 19:46I'm trying to implement the frames queuing mechanism defined in IEEE 802.1Q standard (section 8.6) on my STM32F7 Nucleo board. It's a well-known layer 2 mechanism that takes place at the outbound Ethernet port and all...