Re: Bluesaab V6 - USB device not recognized

Posted by Karlis on Sep 22, 2019; 5:20pm
URL: http://bluesaab-forum.90.s1.nabble.com/Bluesaab-V6-USB-device-not-recognized-tp1512p1513.html

By default, STM32F103RB micro-controller does not have USB peripheral enabled. What it has is a factory bootloader that "listens" to UART1. When STM32 is pushed into DFU mode (BOOT0 pin is high during power on), then it will accept whatever is coming in through UART1.

In order for USB to work, the USB peripheral has to be configured on STM32 and some sort of bootloader needs to be custom made in order to make the whole module as a USB device recognizable by PC.

Hope this helps.