STM32 MCUs Embedded software

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Real bug in the USB CDC

Posted on September 15, 2014 at 14:39USBD_CDC_TransmitPacket() function contains a bug: it sets the 'transmission in progress' flag AFTER starting the actual transmission, so if the 'transmission done' interrupt happens too early, the flag will be ...

ksa by Associate
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USB on STm32F411RE

Posted on April 07, 2016 at 11:07Hi,I'm trying to handle a printer via USB with my http://www.st.com/web/en/catalog/tools/PF260320 but I'm facing a problem. Indeed, when my board send the first request for the enumeration, it goes in a waiting time ...

2 UART running in FreeRTOS

Posted on April 07, 2016 at 15:11Hi, I use 2 UART ports: UART1 for WiFi and UART4 for debug output. My goal is to send to UART4 data I received on UART1. When I use only 1 UART, it works (UART4), everything I typed on keyboard, returned back. I impl...

UART

Posted on April 02, 2016 at 12:40Hi,I am facing some weird problem in UART.Whenever i am using UART in polling to receive the data followed by storing the data into some array. But what is happening is that the array is sometimes(mostly) starts to f...

bhavesh by Associate II
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STM32L0 - DFU support?

Posted on February 21, 2015 at 19:40Hello I just need a confirmation. Is there really no support for firmware upgrade over USB (DFU) in the STM32L0 MCUs??? The STM32L0 is not listed in the http://www.st.com/st-web-ui/static/active/en/resource/techni...

Tantalum by Associate II
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Bug when I plug a USB device

Posted on April 01, 2016 at 16:05 Hi, I'm facing trouble when I try to connect a USB device (whatever it is) to my http://www.st.com/web/en/catalog/tools/PF260320. As I plug it, my program is stuck here : Here is a little co...

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quentin23 by Associate II
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STM32F107 with LWIP using CubeMX

Posted on March 21, 2016 at 19:59I've created nearly identical projects using CubeMX.First one is using STM32F107, 2 ADCs, ETH. When I compile it and run on my target (EasyMX Pro v7 for STM32 ARM), it gets to main loop without problems.The only diff...