USB low-full-high speed peripherals Forum Discussions
I am trying to get an FPGA interface working on a FX2LP. I have used the application note AN61345 Spartan 6 design, just changing the FPGA pins to match my own. If I use the USB control centre to send some bytes to the FX2LP it reports that it worked fine. However when I try to read them back it gives the following error.
BULK IN transfer failed with Error Code:997
Can someone tell me what this means? I am a bit surprised that the example design would not just work out of the box.
Thanks
Jon
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I have a couple of questions about CY7C67300 after going through the data sheet.
1. I would like to use CY7C67300 in co-processor mode with HPI port interface. I need two Host ports and One device ports. I was planning to use port 1A as peripheral and ports 2A and 2B as Hosts. In this configuration what does the OTGID pin have to be tied to +3.3V or GND or left floating as I intend to use that port as a peripheral. Also is this configuration valid to use meaning port 1A as peripheral and 2A and 2B as hosts.
2. I came across some other application note from Cypress about HPI port and I am confused by one statement I found in it. It stated that BIOS will not configure port 1A or 2AS in co-processor mode. What does this imply? How else would I configure port 1A as peripheral and port 2A as host?
Thanks.
How much cyusb.sys have packets per microframe?