STM32 MCUs Embedded software

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I2C EEPROM Memory accessing

Posted on March 19, 2015 at 13:09 Hello, I am using STM32F0 HAL Drivers to access external EEPROM 24C64 with STM32F The functions I am using areHAL_I2C_Mem_Write/Read but the communication is not always successful. Also it worked while using smd...

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...