STM32 MCUs Embedded software

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

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USB HID Communication STM32L152c

Posted on August 13, 2014 at 22:48Hi,I'm new to USB. I'm trying to write a USB HID application using STM32L152c. I did not know where to begin so i decided to use the demo code given by ST. When i downloaded this code and tried to see the data using...

anuja by Associate II
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USB_FS Endpoint IN/OUT addresses

Posted on August 12, 2014 at 15:40Hi,Could somebody tell me where may I find some information about range of addresses of endpoints? In reference manual for stm32f4 I find out that there are ontly 3 in/out endpoints.In example application IN endpoin...

MSC BOT state machine problem

Posted on November 05, 2012 at 07:45 Hi, I have been using the the MSD class driver for usb host on an STM32f4 board. The host seems to work fine for some time, but after say 200 read/write ops it gets stuck at: void USBH_Process(.......

tavish by Associate II
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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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