2018-11-22 06:24 AM
Hey,
I am trying to get the internal DMA of my USB HS interface to work. I am using an USB3320 as my ULPI transceiver connected as Device. I have no trouble using the USB interface without the internal DMA, however, it is extremely slow. I only get about 50 KB/s, using CDC_Transmit();. I am hoping to get at least a few MB/s with the HS interface.
I am using CUBE and TrueStudio, all the code was created using CUBE. According to Wireshark setting up the Descriptor, Configuration and Line Coding works, however, when I am trying to open the COM port with putty/HTerm or RealTerm then the device doesn't respond/unable to open Serial port.
Any help would be greatly appreciated!