USB CDC Device_Only, re-connect port
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‎2017-11-04 11:46 AM
I'm using STM32F407 Discovery-1, I use USB CDC to send and receive data from terminal. Everything ok but issue that I need re-connect port to transmit and receive data, but i remember that when i used
STM32F407 Discovery , every when i upload new code, i don't need to re-connect port. I use CubeMx 4.14 for both STM32F407 Discovery versions. Please help me to resolve this problem. Sorry for bad my english.
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‎2017-11-06 3:25 AM
Hello
thaitanloi365
,Please use the last version of CubeMx 4.23 and firmware package STM32CubeF4.
Have a look to the CDC application from CubeF4 package and you canstart with a working USB example to identify what is going wrong in your case and confirm if the problem here seems related to the hardware or software environment.
Best Regards
Imen
Thanks
Imen
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‎2017-11-06 5:27 AM
Thanks for your recommendation, I have used other versions as CubeMx 4.19,4.22 and 4.22.1 and other firmware versions as V2.J28.M18 Debug +Mass storage and latest firmware version, but the problem isn't resolved. I had to re-connect port every i upload new code. I confirm that when i use this code for STM32F407
Discovery
( not Discovery 1 ' with firmware ST-LINK V2 Debug. This problem is fiexed.