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USB CDC how to increase speed (baud rate) ?

Hello everyone,I am working on a signal analyser device, which needs to transmit data serially as fast as possible (idealy 1Mbaud/s).I am doing the following loop to transmit:  uint8_t buf_high[1] = {124}; // '|' uint8_t buf_low[1] = {48}; // '0' ini...

LLope.31 by Associate III
  • 604 Views
  • 8 replies
  • 2 kudos

Resolved! Configure AF GPIO register using 11U STM32F446RE

Hi, i came across a program to config alternation function for SPI GPIO port A.  GPIOA->CRL |= (11U<<20);       // PA5 SCK AF output push pull GPIOA->CRL |= (11U<<28);       // PA7 MOSI AF output push pull What does the 11U means? i know its somethin...

Program stm32F745 via RS-485 and bootloader

Hello everyoneIs it possible to program my STM32F745 via RS-485 using the integrated bootloader?My idea is using USART1 (as written in the AN2606) and a transceiver to do that. Has anyone done something similar? Thank you very much in advanced. Best ...

Resolved! STM32G474RET6 ADC over work voltage

I have a project ,  used regular conversion ADC1 Vrefint Channel and Temperature Channel, and used injected conversion ADC2 extern Channel(ext.CH1 and CH2).ADC2 CH2 connect 2000mV voltage , CH1 is changed. If CH1 over 3.6V,the CH2 conversion is error...

Sunwaz by Associate III
  • 160 Views
  • 1 replies
  • 0 kudos

STM32U5 USB problem

I'm having problems with USB on NUCLEO-U575ZI-Q (STM32U575).I've created from scratch project in CubeIDE for USB CDC ACM device, and set up all th peripherals as in the example STM32Cube_FW_U5_V1.4.0\Projects\NUCLEO-U575ZI-Q\Applications\USBX\Ux_Devi...

ASamo.2 by Associate II
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  • 2 replies
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Keep getting HAL_Busy for my i2c device

Hello everyone i've been trying to use FMAMSDXX015WCSC3 force sensor. sensor address 0x28 and whenever i was trying to do IsDeviceReady function, its been always keep getting me HAL_Busy.HAL_StatusTypeDef status = HAL_I2C_IsDeviceReady(&hi2c2, 0x28 <...

SabTuna by Associate II
  • 518 Views
  • 7 replies
  • 1 kudos

Resolved! Connecting OV7670 to Nucleo-H743

Hi, I use following code to capture a frame from OV7670 camera module without FIFO:  #include "main.h" #include "string.h" #include "../../Drivers/OV7670/OV7670.h" #define USE_GRAYSCALE 0 DCMI_HandleTypeDef hdcmi; DMA_HandleTypeDef hdma_dcmi; I2C_Ha...

Rthat.1 by Associate II
  • 372 Views
  • 5 replies
  • 1 kudos

Resolved! Reading data by ADC using DMA is not working Poreperly

I am trying to read some data by ADC using DMA transfer method I configured the ADC   attached the code belowI cannot getting the ADC value in all buffer only  read the 3rd  buffer 1st and second buffer shows grabage value please help me i tried out ...

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Read a temperature sensor on a battery system

Hello everybody,Actually I'm working on a temperature sensor. This project works on battery (2 x 1.5 V alkaline).I would like to read the temperature in the room with an external analog sensor.But I don't understand how VrefIN works. Because my Vcc s...

JJoao.1 by Associate
  • 231 Views
  • 3 replies
  • 1 kudos