Forum Posts
FOTA using UART bluetooth
I am using an STM32F302CB MCU, I intend to program my device remotely via a mobile app connected with the embedded system through a BT( UART connected).What I understood:-1.) The ST bootloader can be used to flash the MCU by sending some commands to ...
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...
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...
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...
Resolved! What are the USB_FS interface power requirements for the STM32L552CE?
I'm designing for a project using the STM32L552CET6 to hold me over until the STM32L4P5CGT6 is in stock. The datasheet (DS12737 Rev4) for the STM32L552xx line describes the interface as available in Table 2. The reference manual mentions an independe...
FATfs on SPI flash or to use direct access to bloacks
Hello,I've checked multiple threads on FATfs design for SPI flash. I see, there are some advantages of using FATfs like standard code, modularity etc. but are there any disadvantages apart from adding one more layer of execution between application a...
__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...
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...
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...