Forum Posts
Resolved! STM32L4 External clock sharing
Hello, I am using an external crystal to generate the system clock for STM32L431CCT6.How can this be shared with the rest of the devices like interface controllers. The goal is to implement Quad-SPI interface. For the purpose CAN controller MCP2515-...
Resolved! Board: STM32G474E EVAL /using Demo-STM32G474E EVAL EWARM project IAR/ issue with reading BMP file from SD card and displaying on LCD. While I try displaying the image on Lcd I get "Error Popup resource file missing please update sd card content".
I checked sd card contents and it got the required files with right permissions and formatting. I tried debugging and kStorage_OpenFileDrawPixel() used for checking the file and printing on LCD returns kstorage_ERROR_OPEN. This is demo project with...
Is 700 kb/s a normal datarate for USB in device mode ?
Hi,I am working with an STM32L476RCT6. On STM32CubeMX, in "Connectivity", I make use of the "USB_OTG_FS" functionnality and I have choosen the "Device_only" mode. In "Middleware", I use the "USB_DEVICE" in "Communication Device Class (Virtual Port Co...
Current consumption of individual peripherals in STM32G070
I was referring to data sheet of the STM32G070 to figure out the current consumption of individual peripherals to finally calculate the power consumption of those peripherals. The following table from page 50 of the document gives those details. Rang...
DMA line output is one more cycle than expected
Hi,I'm trying to control multiple PWM signals simultanously using DMA (used for controlling LED drivers). However I'm having an issue I can't seem to trace, one of the lines puts out an additional PWM signal cycle that shouldn't be there, this is wei...
what is the proper way do define a complete HID Report Descriptor for a complete keyboard?
I'm trying to build a custom HID device with the STM32F401RE board.I've got a basic keyboard recognized by my PC as a HID Keyboard from STM32_USB_training_course example as I expected, and "normal" key strokes works fine (letters, Enter, page up\down...
Verification failed
Hi,I wrote an external loader and tested for writing , erasing sector, erasing chip, reading, using "\testbinary1M.bin". But it failed in verification. What could be the reason? EDIT: I'm checkin what's going on by a logıc analyzer. I'm not using qua...
Maintain Codes After Power Off
Hello,I developed a custom-designed system with an STM32F767 microprocessor and controlled its parameters with a user interface through a Bluetooth module. When I power off then power on the system, I couldn't communicate with the circuit board. Is t...
STM32F4 SPI code only works in debug mode
Hi I am trying to read ID of an external FLASH.The code which reads it is shown below.uint16_t FLASH_ReadID(void) { uint16_t tempData = 0x0000; //Read ID GPIOB->BSRR |= GPIO_BSRR_BR2; //Reset FLASH CS while(!(SPI1->SR & SPI_SR_TXE)); SPI1->DR ...
