STM32 MCUs Embedded software

Ask questions and find answers on STM32Cube packages, including HAL, LL and middleware, and expansion software.

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STM32F407 USB MSC example code

Posted on October 23, 2017 at 14:00I am looking at running USB Host software on the STM32F407VG device, probably using the STM32F407G-DISC1 eval board but haven't ordered it yet.I downloaded the STM32_USB-Host-Device_Lib_V2.2.0 example code from the...

STM32F4 - SDIO FAT write problem

Posted on June 21, 2017 at 14:26Hi community!To replicate my setup you need:- discovery (F407)- Discover - M0 expansion 'shield'- Sd Card- download my test project under atollic here (cube mx project included):    https://uloz.to/!mbYhN53eRdyf/cubem...

How does HAL_I2C_IsDeviceReady work?

Posted on October 19, 2017 at 20:38 Hi all, I'm dealing with an I2C memory connected to a STM32F401 MCU and I'd like to check at runtime if the device is ready (or if something is wrong, e.g. with wirings). I'm trying to use the HAL_I2C_I...

STM32L021 Jump to Bootloader issue

Posted on September 29, 2017 at 01:24About 6 months ago, I wrote a serial GUI under Windows to upgrade firmware on an STM32L052 via the UART2 port, where the firmware does a JumpToBootloader() to get things started.  This took a lot of work and trou...

How does USBD_LL_Transmit work?

Posted on October 18, 2017 at 23:10So I am trying to write firmware for an STM32F0303, and I am trying to use USBD_LL_Transmit from the STM32Cube USB device library to send data to the usb host.  The only documentation on this function that I can fi...