STM32 MCUs Embedded software

Ask questions and find answers on STM32Cube packages, including HAL, LL and middleware, and expansion software.

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problem using OTG_FS_VBUS pin like gpio output

Posted on July 16, 2014 at 09:57Hi, I�m using pin A9(OTG_FS_VBUS) like GPIO and I have configured it like output. The problem is that when cpu boots it sets pin to high level, after cpu executes my gpio init routine and the pin works well and I set ...

jagracia by Associate
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STM32F4 composite USB device

Posted on August 06, 2014 at 10:12 Hi, I'd like to implement a composite USB device with MSC + a custom class. I'm using a STM32428I-EVAL board and some code generated by STMCube. MSC alone is working (with bulk endpoint 0x8...

franck by Associate II
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Hal bug using rtos

Posted on August 05, 2014 at 12:50I imported an example with  RTOS (FatFs_uSD_RTOS) and I found some bug. In function HAL_Init() is called HAL_SYSTICK_Config()  but  SysTick_Handler()  call xPortSysTickHandler() before osKernelStart() so we have an ...

Wrong register BRR in usart

Posted on July 30, 2014 at 15:16Hi, I'm trying to initialize a usart, and read some data on a Terminal. The terminal receives some data but not the good one. The problem seems to be a clock problem, and the usart register BRR looks wrong. Moreover, ...

maxime by Associate II
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SSD1289 STM32CubeF4

Posted on July 29, 2014 at 18:16I am a beginner with Stm32f4discovery (version stm32f407vg). It took me a long to get the graphic LCD work (copying and rewriting some code from others). My problem, I want to use it with FreeRTOS. But My FreeRTOS wor...

Wrong values in debugger

Posted on July 21, 2014 at 13:34Hi everyone,I'm using CooCox with a STM32F4. I have a big issue with the Coocox debugger:static STEP_MODE val_step_mode = FALSE;1  if ((Get_Core_Current_Track()->step_mode)  !=  val_step_mode)2  {3         val_step_mo...

Using SD card and USB Mass Storage Simulataneously

Posted on July 29, 2014 at 16:08'm currently developing an application for an ST32 (STM32F103xC) using Micrium OS-II. So far it's all gone smoothly, but I've hit a block now and can't proceed.The board is configured to act as a USB storage device us...

julian by Associate
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4 USB virtual com port cause blue screen

Posted on July 29, 2014 at 11:55hi,allI have 4 boards of stm32f103 with USB virtual com port enable using the VCP library and driver. The main purpose of the USB is to catch running log.So here is the situation:I plug in 3 boards to PC, and all of t...