minimum circuit to have STM32F407VGT6 with USB working properly as a USB host
Hi guys, does anyone draw a circuit to get the stm32F4 MCU with USB connector working properly . Thanks
STM32 MCUs Embedded software
Ask questions and find answers on STM32Cube packages, including HAL, LL and middleware, and expansion software.
Forum Posts
HAL_Delay works and doesn't work
I'm still very new to STM32 processors, and using CubeMX to generate my basic code structure (for TrueStudio). In the code below, if I uncomment code section A, the yellow LED blinks, but not evenly... At low values such HAL_Delay(100), the high time...
FatFs/SDMMC with 4 wires times out, 1 wire works
I'm still trying to get FatFs to work with 4 wires. My PCB has been properly traced, each line is within a few mm of all others, and has a 33K pull-up. Internal pull-ups are off.This setup works fine at full-speed (45 MHz) when using only 1 wire, b...
stm32h743 lwip HOSTNAME trouble
I am new to stm32h743. I have ported project LwIP_TCP_Echo_Server for eval pcb to nucleo h743 and all works ok. Within the dhcp list of linked device see my device with "unknown" name. I have added "#define LWIP_NETIF_HOSTNAME 1" into the lwipopts.h ...
STM32 not working when leave USB or dont plug USB
Hi guys,I have a program use USB CDC and some function(STM32F103C8T6 StdPeriph lib). If use USB to power supply then program normal working, but it's working I leave USB out from Board (have sub power supply for Board) Program stop now. And if don't ...
Resolved! STM32L0 use internal EEPROM
Hello,i just want to use the Internal EEPROM of my STM32L052.I followed the short description in the STM32CubeMX manual. But it is not working. Here my small code example HAL_FLASHEx_DATAEEPROM_Unlock(); HAL_FLASHEx_DATAEEPROM_Erase(0x08080000U); ...
HAL_PCD compiled signed unsigned comparison warnings
If you compile stm32f4xx_hal_pcd.c with -Wall, you will get signed/unsigned comparison warnings. Most of them seem minor, however, in line 1299 they do the following:int32_t len; .. if(len <= 0U) { fifoemptymsk = 0x1U << epnum; USBx_DEVICE->D...
Why STM32H743ZI DFU bootloader does not come up?
Hell ST community!I have made a board with an STM32H743ZI MCU on it. It has connections to pins where serveral USART peripherals sit (without pull-ups) and uses USB FS on PA9 to PA12.My problem is that the DFU bootloader does not show up via USB. If ...
Resolved! Canbus Filter Matching Index
Hi, I'm fairly new to arm platform. I'm trying to communicate between 2 MCU via Canbus. with the latest HAL Library I set up 4 filters (2 for each fifo) id mask type , 32Bit. I am receiving my messages from correct fifos. what I cant get is filter ...
Resolved! Warn : no flash bank found for address 0
Hello, I am getting acquainted with FreeRTOS using HAL Libraries. For that I have created two tasks, Task 1 and Task 2 and am simply printing "Task 1" and "Task 2" over a UART. If I build the project from scratch, then I get the text, data, bss sizes...
