![]() SW: latest prebuilt images from PROCESSOR-SDK-LINUX-AM335X v01.00.00.03īooting the linux, after that attach usb-hub to usb-port, after that plug 2 converters to 1 usb hub. HW: BeagleBoneBlack, 2 USB to serial with PL2303 chip, usb-hub. As PL2303 is very popular I think it is easier to find. We are using another USB-serial device, but I face likewise issues. If 2 different USB ports are used / in our custom design/ - everything looks ok.īelow I describe the details how to reproduce the issue with BeagleBoneBlack, usb-hub, 2 PL2303 USB-serial converters and the latest SDK by TI. The issue takes place only when 2 converters are connected to 1 usb hub. Some errors/implementation limitations of the USB HC or its driver. USB to Serial converter (PL2303) and its mainline driver.Īs the same configuration of hw is ok with laptop (Core I7) and Freescale IMX6 board with the same kernel/driver the issue points to Other Parts Discussed in Thread: AM3352, AM3874, AM3359ĭuring AM3352- based product development we have faced an issue with USB-to-serial converter via usb-hub usage.Īt first the device and its driver was blamed but further investigation showed that this isĪ common issue and likewise errors could be reproduced with BeagleBoneBlack, much more popular ![]()
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