Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on April 12, 2016 at 11:58On my board, I want to activate the virtual com usb, but not function.I generated of the https://www.dropbox.com/s/addgrf6w4k45cif/usb_usart1.zip?dl=0 with STM32CubeMx, enabling only USB and UART1 pins of the STM32F1...
Posted on April 21, 2016 at 08:51Hi all,I am writing a program on the STM32F446 in which I am trying to talk with a PCM sound module via I2C. I am attempting to read its registers, which involves sending the register number and then reading the valu...
Posted on April 15, 2016 at 14:34I want to make the CRC progress as soon as I receive bytes so I want to calculate partial CRCs as soon as the packet is entering the system. Should I use HAL_CRC_Accumulate with buffer size =1?I also deal with bytes ...
Posted on April 20, 2016 at 16:42Hi, New STM32. Im doing a design involving STM32F042G4. Is there a reference design for this IC? I have found - http://www2.st.com/content/ccc/resource/technical/document/application_note/c9/19/d7/b8/6b/0e/4c/d3/DM00...
Posted on April 20, 2016 at 00:03hcan is locked permanently in HAL_CAN_Transmit_IT when all transmit boxes are full. Bellow is compressed HAL_CAN_Transmit_IT function: HAL_StatusTypeDef HAL_CAN_Transmit_IT(CAN_HandleTypeDef* hcan) { uint32_t tran...
Posted on April 20, 2016 at 12:47HiI admit I am a complete newbie so please go easy.... :)I need to store some variables in the 5 memory locations in the STM32F091RC. We have the following code:mark1 = 123;RTC_HandleTypeDef RtcHandle;RtcHandle.Inst...
Posted on April 19, 2016 at 17:18Hello, all ???_rcc.c files, e.g. STM32Cube_FW_F7_V1.3.0/Drivers/STM32F7xx_HAL_Driver/Src/stm32f7xx_hal_rcc.c define const uint8_t APBAHBPrescTable[16] = {0, 0, 0, 0, 1, 2, 3, 4, 1, 2, 3, 4, 6, 7, 8, 9}; This contrad...
Posted on April 20, 2016 at 10:31Hi Every body... Recently i wrote a program to read a file from uSDHC Card 4GB for infinite loop. Purpose is check the total time of reading a file (eg mp3 file). The code is so simple and noting have any complexity....
Posted on October 18, 2015 at 00:09Here is original function static HAL_StatusTypeDef I2C_MasterTransmit_TXE(I2C_HandleTypeDef *hi2c) { /* Write data to DR */ hi2c->Instance->DR = (*hi2c->pBuffPtr++); hi2c->XferCount--; if(hi2c...
Posted on April 15, 2016 at 18:17Hi,I'm building a time trial race, to do this i'm using the STM32F334R8T6 microcontroller with the RTC and timestamp, resolution must be of hundredths of a second, for this type of project is correct to use a RTC clo...
