STM32 MCUs Embedded software

FATFS on external SDRAM Problem

HiI work on stm32f746 discovery and I want to configure FATFS on external sdram. I use STM32CubeIDE 1.6.1. when I create my project and mount disk, return error (value 13 = FR_NO_FILESYSTEM). does everyone know about this problem or is there any samp...

How to abort or timeout CDC_Transmit_FS

I am sending with CDC_Transmit_FS by USB CDC, but USB_TransmitCplt_Callback is not called unless the other computer receives it on the COM port.How do I time out or abort a send?MCU: STM32L433CCUxLibrary Version: STM Cube FW_L4 V1.17.0

STM32G0 USB_DP/DM 3.3Volt

we are planning to use STM32G0 for our next generation design with its USB port, two application is considered:Use it as VCP, the signal from PC is +5 Volt, but the MCU is +3.3 Volt, can the USB port DP/DM pin directly connect to MCU pins? or require...

Hi, i want to work with my STM32F4 Discovery Board in a stand alone mode. I supply the board with external 5 V like described in the manual. But its works only when my development environment is connected via USB. How can i work in a stand alone mode?.

STM32F769 ethernet chip power up issue

Hello,This is nur. I need your help. I am working on STM32F769 phy chip , RMII interface. Once I apply power the stm chip then Ethernet cable clicked , there is no connection. if Ethernet cable does not click into place before power is applied to the...

STM32F767 : No Ethernet when APB2CLKDivider = RCC_HCLK_DIV8 or greater

My SysClock is 200 MHz, AHB Prescaler=1.I want to slow down some timer to filter glitches from external input.But when APB2 peripheral clock is set lower than 50 MHzthe Ethernet DMA does not send any data: no ARP, UDP or TCP.Even when ABP2 timer cloc...

Corrupted ETH Rx Buffer in STM32H7

Hello everyone,I'm running a webserver on a STM32H7. Code was generated with CubeIDE 1.5.0, using LwIP V2.1.2 and the Firmware-Package V1.8.0. So far, I had no problems receiving or transmitting smaller files, in the x-xx kB range from the MCU to a c...

P-L496_Cell02 can't find SIM

There are eSIM and Mirco_SIM in the Modem board, but it keep report: CST_modem_sim_init : Can't find sim on current slot. Increment sim slot.    CST_modem_sim_init : No more sim slot, no SIM found. Retry...     Any suggestion?

[STM32F769I-EVAL] Can I use both the Audio and Ethernet functionalities at the same time on an application?

So this question arises because the jumpers 3 and 6 of the board switch between either Audio or Ethernet, and I'm not sure in what capacity they're mutually exclusive or not.As an example imagine an application for audio streaming over Ethernet:can I...