STM32 MCUs Embedded software

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Transmitting DATA using USB in STM32H743

Hi,I am having some problem transmitting data over USB.i'm transmitting '|' and '.' continuously but i'm missing some data when i receive data .i'm getting like "||.|.|.|..||||.|.|"I generated code using CubeMX. Even in reference manual there is no c...

VPras by Associate II
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osTimer Callback Context and Priority

I'm using STM32L152RET with FreeRTOS (cmsis wrapper) for my product. I'm struggling to understand the priority and context of the freertos "timer interrupt". We use a cmsis wrapper (code generated from CubeMX) and the freertos based timer task is ref...

usb host cdc enumeration problems

Hello,i need to create a simple communication between a stm32f103 usb device and a stm32f407 usb host. I configured a simple program for led blink of stm32f103 and it works correctly. Practically i connect the usb device to my laptop with "PuTTY", i ...

MMang.17 by Associate
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STM32F4 DFU / Crystal Initial Startup Issue

Hello. First of all I should start by saying I'm new to embedded development and have a lot to learn. We're using an STMF413 and I'm unable to get the device to register in DFU mode on a Windows PC. I've used DFU to flash other STMF413's before with ...

AlexA by Associate
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Ethernet with lwip

Hi!I have problems using Ethernet with an STM32H743ZIT6 chip. Im using the suggested lan8742 ETH PHY. And I generated the code with cubeMx. My problem is that I cant find any good sample codes on the net, and I think Im not configuring correctly the ...

AGERE.192 by Associate II
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USB Drive Issue

Hello ,I want to see my pen drive as drive in computer as normal drive I want in my project that my sd card and pen drive both will seen as two seprate drive in my computerI have done sd card by USBMSD , but i could not do it for pen drive Part No: ...

ERROR Transmitting data over USB.

Hi, I generated the code using cubeMX I'm trying to transmit the data over USB continuously, but i'm getting USBD_busy ERROR so to avoid this error I was checking the TxState value to transmit the next data. But still im missing some data. How do I s...

MR.11 by Associate II
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