STM32 MCUs Embedded software

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STM32F4 USB Polling interval

Posted on June 22, 2016 at 06:58Hello,Using the processorSTMF401VETx I generate the project with STM Cube: STMCube Mx version4.12.0 library STM32CubeFW_F4 v.1.10.0I used the midlewarelibraries included in the framework to develop a USB HID device.A ...

Having trouble with DFU

Posted on June 17, 2016 at 18:03Hello,I am having a problem with dfu on the STM32L476 Discovery board. For testing purposes, I generated a binary file that is 24428 bytes long such that every byte in the file is the value '0xAA'. When I download the...

UART/USART to print to terminal

Posted on June 14, 2016 at 19:00Board: STM32F407VGT OS: Ubuntu 14.04 HAL Library (Not SPL) I am having difficulties getting output from the STM32F4 to communicate with my terminal via ''cat /dev/tty*'', putty, or ckermit. I am using USART2 from PA2 ...

STM32L0 USB Connect-DisConnect Event

Posted on June 13, 2016 at 11:32Hi everyone, I developed USB Hid Class on STM32L0 series.Everthing working properly but I  could not get the USB Connect and Disconnect Event.I am using CubeMx and HAL_PCD_ConnectCallback  and  HAL_PCD_DisconnectCallb...

STM32F407 custom bootloader problem

Posted on June 14, 2016 at 14:38Hello! I am working in a project that I want to use a custom bootloader for firmware update of stm32f407, I had developed for stm32f107 and all works fine, but for STM32F407 I getting some problems. Below I posted th...

giovani by Associate II
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STM32F407 USART2 do not receive

Posted on June 08, 2016 at 15:51Hello, I have configured USART2 to communicate as RS422. Rx is connected to PA.3, Tx to PD.5. I need baudrate 921.600 Baud. There is no problem send anything one or more bytes. I can not receive anything from Rx (PA.3...

Why are HAL Lookup tables located in RAM?

Posted on June 14, 2016 at 11:10I notice that the HAL locates some lookup tables in RAM. For example, in stm32f1xx_hal_rcc.c:uint32_t HAL_RCC_GetSysClockFreq(void) { &sharpif   defined(RCC_CFGR2_PREDIV1SRC)   const uint8_t aPLLMULFactorTable[14] = {...

How to detect USB plugin and unplug (stm32L152)

Posted on January 01, 2016 at 15:57Hi All,How to detect USB plugin and unplug?I used the stm32L152 and USB CDC class.I want to show plugin information on OLED, need to know when the usb plugin and unplug, but I can't find the solution?I used a flag ...

STM32F4 add endpoint to USB

Posted on June 10, 2016 at 11:52 I'm doing a project where I use a NUCLEO-F446ZE as a USB device. I'm implementing the CCID class. I used the template class and some code from VCP. This way some endpoint are already configured like Bulk ...

thom_as by Associate II
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