Posted on February 13, 2017 at 23:50Hello,I hope someone can clarify this. How can the USB common mode range be less than 3 volts if D and D- pulled down with 15k, differential resistance is 90 ohms, and pullup is 1.5k to 3.3 volts? Using simple ...
Posted on February 14, 2017 at 11:562. I'm trying to send signals DSR and DCD through the structure and command endpoint, see exampleUSBD_StatusTypeDef USBD_LL_SOF(USBD_HandleTypeDef *pdev){ static uint8_t Buf[0xA]; Buf[0] = 0xA1; Buf[1] = 0x2...
Posted on February 14, 2017 at 10:52Hi ,i am very new for embedded system and right now i have work with stm32f401re OSxAcosticBF Application .which is-(osxAcousticBF software provides an implementation for a real-time adaptive beamforming algorithm...
Posted on February 01, 2017 at 22:14I'm trying to implement a SPI slave on STMF410 using NSS_HARD_INPUTSlave should receive data of unknown length via DMASlave transmissions are of known length so master knows to keep the SlaveSelect line active f...
Posted on February 14, 2017 at 07:01Hi,I have interfaced OV5640 camera with STM32F429VI using DCMI and DMA. I am capturing JPEG image. The data of image storing in external SRAM using DMA. SRAM size is 512 x 16Bit.I can able to store image which has...
Posted on February 13, 2017 at 12:31Hi,I am trying to use the ADC on STM32L151, the external pin VREF+ is 'not connected' in my design, instead I would like to use the VREFINT (internal reference voltage). The datasheet states: 'VREFINT is internall...
Posted on February 10, 2017 at 17:45Hi ST communityI have a custom made board around an STM32F429IIT6 connected to an external SDRAM AS4C4M16SA, I followed initialization steps embedded in the STM32F429 Reference Manual http://www.st.com/content/...
Posted on January 18, 2017 at 10:00Hi,I am having a problem with the function FLASH_ProgramHalfPage it returns the error FLASH_ERROR_WRP but if I check the option bytes of my memory they are in Level 0 so it is not protected. Also I can connect my d...
Posted on February 13, 2017 at 16:02 Hi CubeMX 4.19 with STM32L433CCx selected generates the following code for SPI2 void HAL_SPI_MspInit(SPI_HandleTypeDef* spiHandle) { GPIO_InitTypeDef GPIO_InitStruct; if(spiHandle->Instance==SPI2) { ...
Posted on December 29, 2014 at 15:09My project contains a STM32F429 and a AS4C4M16S SDRAM (own designed PCB) I have tested writing-reading by the next function:void SDRAM_TEST(void) { int i; int err=0; int ok=0; HAL_StatusTypeDef ret; #define TES...
