STM32 MCUs Embedded software

Using a timer for systick which shares an IRQ with another timer creates a null pointer exception

I useSTM32F205CubeIDE 1.5.0MCU package for STM32F2 V1.9.2I tried to assign systic to timer 14I wanted to use timer8 for something else.I enabled "HAL_REGISTER_CALLBACK" for timers.When the system starts, during "HAL_Init()" timer14 is initialized as ...

I want to interface USB dot matrix printer with STM32F4 Series controller. Please give knowledge about hardware between controller & printer, Sample code related to this.

USBPD message sequence issue.

Hi STteam,@brief : We are working PD source solution(i.e. 60Watt (20V @ 3A max)) using STM32G081RBT6. We are taking USB-PD_Provider_1port as an Base reference project.@Reference : I have gone through each and every line of UM2552 reference manual I f...

Issues with SD Card when waiting for SD Card Ready

Hi everybody,I've got an STM32H743XI and use the Cube V1.3.2 Firmware for an project for my master thesis.To this controller I have connected a SD Card with the SDMMC controller using the 4 bit bus. I also use FreeRtos and don't want a blocking read ...

How can I check if USB SendReport data has been read/requested by USB host?

I'm using the USB middleware for a STM32F765 MCU application. I am able to use the function USBD_CUSTOM_HID_SendReport() for transmitting data payload from my application to a USB host, but don't currently have visibility of if/when the data prepare...

Cannot get into the factory ST bootloader from AN2606 for programming over SPI.

Hi, I am using a Nucleo-144 STM32H743ZI2 to validate some functions identified in STM’s documentation.Unfortunately, I am unable to properly enter the ST bootloader which I would like to utilize for firmware updates over SPI or CAN when installed so ...

What is the best STM32 to convert USB into CAN ?

Hello,I am looking for the best STM32 to convert USB into CAN. I already looked at the STM32L476 and I saw that pins PA11 and PA12 are used in both USB and CAN protocols.Thanks in advance for helping me out

DFU USB new hardware installation driver , even if it's the same

I am trying to understand how STM32L4xx's USB DFU link works.I downloaded the DfuSe_Demo app and I can regularly program the micro via USB, but I noticed that every time the power supply is disconnected from the board and then switched on, the PC alw...