STM32 MCUs Embedded software

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Forum Posts

USB Printer Class: Cannot print

Posted on August 31, 2015 at 15:31Hello to all,I'm trying to implement a printer class for the USB. Currently I'm using the STM32F4 Discovery.I already have working the detection of the printer (EPSON CX5600) , reading the ID, etc.What I cant make w...

fb2 by Associate II
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STM32f407 isoc transfer was reduced

Posted on August 02, 2015 at 13:43Hello all! I use STM32F4Discovery (embedded code based on HAL v1.6.0) paired with libusbk. To switch on/off the isochronous IN transfer over EP2 i send commands (control transfer) to EP0. The maximum size of EP2 pac...

USB CDC - Issue with size buffer in EP0 OUT

Posted on August 28, 2015 at 17:09Hello everybody,I'm using USB CDC in my project with STM32L151CC, and I got little issue with the USB Library.I know that the MAX SIZE of EP0 buffer to transmission is 64 bytes.In my debugs, I could send 1 byte, 2 b...

uilter by Senior
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STM32F070 USB not working

Posted on August 28, 2015 at 11:06Hi. I am using STM32F070CB with libraries STM32F10x_L1xx_F3xx_USBL(v4.0.0) and STM32F0xxSPL(v1.1.0) to implement custom HID to implement simple hello world(PC sends 64 bytes and MCU sends back the same 64 bytes)The ...

stm32f042 can problem

Posted on August 27, 2015 at 09:41 void HAL_CAN_MspInit(CAN_HandleTypeDef* hcan) { GPIO_InitTypeDef GPIO_InitStruct; if(hcan->Instance==CAN) { /* USER CODE BEGIN CAN_MspInit 0 */ /* USER CODE END CAN_MspInit 0 */ /* Peripheral clock en...

STM32L053-Nucleo board's RTC not running.

Posted on August 25, 2015 at 06:52Hello, I have implemented RTC on STM32l053-Nucleo using CubeMX and CubeL0 HAL libraries. I set and get the time and date in RTC using HAL functions but the RTC is not running, I am getting the same time and date I h...

salman2 by Associate II
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STM32F4 USB Endpoint question

Posted on August 14, 2015 at 09:35Hi! I used CubeMx to generated USB HID Device example code and  update to F4_Discovery Kit.The default endpoint address is 0x01 and 0x81. I could send data from PC to STM32F4 via USB. and STM32F4 also could send dat...