STM32 MCUs Embedded software

How many maximum usb vcom port we can create? Actually i created two vcom port with stm32l452 but not able to create third one. please suggest some help . for vcom port 3 descriptor detail given below.

/////////////////////////////////////////////////////  //Add 3 IAD class here // this one is for COM port 3  0x08, // bLength: Interface Descriptor size  0x0B, // bDescriptorType: IAD  0x04, // bFirstInterface  0x03, // bInterfaceCount  0x02, // bFun...

Why is the ethernet connection unstable?

I have followed the "https://controllerstech.com/stm32-ethernet-6-http-webserver-simple/" tutorial and have set up some parts on https://github.com/stm32-hotspot/STM32H7-LwIP-Examples for STM32H750B-DK and it works once on WEB SERVER not used FREERTO...

I'm using STM32L4A6RGT6 in this bootloader got corrupted, Address 0x00000000 its neither erasing nor writing, and some of the addresses like 0x20000000, 0x10000000 cant be erased, Is there any way to sort this?

Hello! I am getting constant ADC value through SPI when I add a debug message using UART on STM32F205 with CMSIS RTOS.

We have interfaced CS5532 using SPI which is initialized in continuous conversion mode. We read the ADC count in a task being called every 160 ms. When I add following statements in the task, the ADC count read from CS5532 becomes constant.sprintf(De...

Unable to re-configure OSPI Delay Block on STM32U585

On our custom board, we have the SoC communicate with the HyperRam Cypress S27KL0641. We followed the example DLYB_OSPI_NOR_FastTuning and OSPI_HyperRAM_MemroyMapped. The device is working properly on the first initialization. But if we call Deinit a...

How to create lwip project using stm32h747-disco

I would like to ask you guys how to use the stm32h747-disco development board to create a project, hoping to get advice

Dual-bank boot not working on STM32L471 device

Hello,I am trying to use the dual-bank boot feature in order to safely upgrade the software application.The hardware configuration is the following:The mcu used is the STM32L471.The system bootloader version is v9.2BOOT0 pin = 0 so boot mode is set t...

PTP support in HAL drivers STM32H7

We have migrated our project from STM32F7 to STM32H7 MCU and found that there's no support for PTP IEEE 1588 protocol in MAC Ethernet driver (HAL). Here is a message written in stm32h7xx_hal_eth.c file:   -@- The PTP protocol offload APIs are not sup...

USB Not recognized in stm32f429iit6

I am using stm32f429iit6 customized board . I have one hex file , when i debug that hex file in board its working fine and not giving any usb issues its shows stm virtual com port , But when i write program for same board its giving the USB driver is...