STM32 MCUs Embedded software

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on mapping gpio to EXTI on stm32f479xx

Hello,I'm maintaining an RTOS application. It apparently has some GPIOs configured as input interrupts and its startup assembler code has some references to EXTI interrupt lines and handlers like this.... .word   EXTI0_IRQHandler         /* EXTI Line...

PDatt.1 by Associate II
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Can't receive from USB bulk endpoint despite Windows enumerates and libusb reads descriptor of STM32 custom device class (USB_OTG periph)

For a fast ADC sampling USB device, I am using the USB 2.0 High Speed capable STM32F733 with the embedded USB-HS PHY. In USBView, I can see that the device is enumerated, the libusb code opens the device and claims interface, but when I try to receiv...

ETywo.1 by Associate II
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Only DFU is recognized, not CDC on F070CB

Good afternoonReceived my first own PCB back with a STM32F070CB chip...When I pull the Boot0 pin high, I see that the host PC sees it as a DFU device...But under normal condition when using the CDC class I see following message on the host:[17770.689...

Davorin by Senior
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__HAL_LOCK(x) function in STM32 with FreeRTOS

I'm using STM32F767 and referring STM32746G-Discovery code. I've question regarding __HAL_LOCK() function. if I'm using FreeRTOS, I've created 2 threads, one to to handle QSPI interface for flash and second thread to handle CAN communication and read...

AShel.1 by Associate III
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Systick interrupt not working on BOOT_ADD1 context

Hi,I develop a software using delay (and do Systick resource). This software works fine when it's mapped @0x08000000 and using BOOT_ADD0.But, when I maps it @0x08008000 and use BOOT_ADD1, no Systick raises !Somebody has already resolve this problem.T...

ABITT.1 by Associate III
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STM32F303VC eval board - usb is not recognized

I use Atollic IDE v9.3.0 and Segger J-Link J-Trace Pro and built in STlink sometimes.Using the STM32cube mx v5.6.1 I generated projects for USB CDC class with STM32303E- EVAL and NUCLEO-F303RE, neither board is recognized by the USB host (PC with Win...

TMark.14 by Associate III
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How to use 2 HIDs with 1 STM32?

Hello ! I am trying to make 1 STM32 that handles 2 HIDs, one keyboard (HID_MOUSE_ReportDescK[HID_MOUSE_REPORT_DESC_SIZEK]), one mouse (HID_MOUSE_ReportDesc[HID_MOUSE_REPORT_DESC_SIZE]).I use a STM32F103C8T6.I tried to create 2 int (used as boolean) t...

HGaut.1 by Associate II
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