STM32 MCUs Products

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Forum Posts

STMicroelectronics USB communcation disconnected

Posted on July 03, 2018 at 13:11I have used CubeMX to generate the USB CDC driver. I connect my board to a PC and the device manager recognize it as: 'STMicroelectronics Virtual COM Port (COM1)', And then the device is connected.- STM32Cube V1.0 Ver...

Multi channel ADC with DMA in circular mode using CubeMX and HAL, how do I use the half transfer complete and transfer complete callbacks?

Posted on June 29, 2018 at 03:03I am using the STM32F091. I have been trying to use the ADC with DMA in circular mode writing to a large array for use as a sort of double buffer by shifting the first half of the values out on the half transfer compl...

HAL_Irda problem : ping-pong communication fails

Posted on April 21, 2017 at 12:03Hi everyone,I'm developing a firmware in which a IR communication protocol is designed. The uC is a STM32F042C6 and I'm using HAL drivers.The protocol should work as follow (infinite loop):1> Receive 1 byte in interr...

Stm32L4 internal temperature sensor measurement

Posted on July 02, 2018 at 22:38Hello, I'm trying to measure the ambient temperature using the nucleo l432kc internal temp sensor . I connect the MCU through the usb to my lapotp. With the code I'm currently using, the output temperature starts at 2...

STM32F103VCT6  USB Communication Disconnection problem

Posted on July 03, 2018 at 09:38I have used CubeMX to generate the USB CDC driver. I connect my board to a PC and the device manager recognize it as: 'STMicroelectronics Virtual COM Port (COM1)', And then the device is connected.- STM32Cube V1.0 Ver...

Description GPIO speed

Posted on July 03, 2018 at 00:09I want to know how can I aware about some gpio speed parmeters in Cube (low - medium -fast -high speed).For example I set cpu on 20Mhz and PinC.1 set as output push pull medium speed. In this state , what's the pin sp...

Calling HAL_Delay while in sleep

Posted on July 03, 2018 at 05:23Hi,What is the expected MCU power consumption / CPU state when calling HAL_Delay() from an ISR triggered while MCU is in STOP mode? 

STM32CubeMX H743ZIT Makefile problems

Posted on July 03, 2018 at 00:08I'm trying to build a simple 'hello world' program on the STM32H743 using the Makefile option and the standard Ubuntu arm-none-eabi-gcc V 4.9.3.  At this stage my program doesn't even do floating point, but it will ev...