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Although this sounds like the end of the road in relation to these issues, I am not understanding one fundamental concept with this controller and perhaps you have some useful insights. There is a patch here: The code is filled with bugs and the old code is really slow.
U-Boot on Raspberry Pi, step 4: DWC OTG, Control transactions
We ended using the rk for p videoconferencing using H cams and it worked but the wifi was still laging a bit due to the USB interrupts. Initially if was put on the OMAP: Dwcc was originally done for the MMC cards on different plattforms so it might not seem obvious without this:.
We did videoconferencing but using already compressed video from H otv. It was originally done for the MMC cards on different plattforms so it might not seem obvious without this: I have tried different hubs, input devices AND fwc boards all based on the RK — the problems still persist. Given that 0x1d creates and odd address, I would guess the system takes an address exception at that point load 32 from odd address.
You can find Rk sources in many places, there is otv a github page with the RT kernel patches https: Synopsys only allow customers to download the latest versions. The keyboard might start missing keystrokes or repeat keystrokes endlessly and the touchscreen might miss touch events randomly.
DWC OTG Controller – 0x1d Offset – Raspberry Pi Forums
Sign up using Facebook. Does anyone has any idea of what monster is crouched behind door 0x1d that’s scaring the bits out of the DWC OTG controller?
Look at what I told you before: I went though hell while developing for it. Email Required, but never shown. InfinitelyManic 1 4 I had many problems but the one you have being unable to use hubs is different. Once the load at line 34 takes place, the device is still detectable on LAN but wlan0 and eth0 are unresponsive and port scanning returns null.
I wonder if we could chat with you privately to describe our issue happy to pay for your time and perhaps you can help with some pointers? The same USB hub and connected devices do not present any issues when used on a Nexus 7 tablet or a Freescale i.
raspberry pi2 – DWC OTG Controller – 0x1d Offset – Stack Overflow
Cheers and apologies for the long post! Post as a guest Name. You might try offset ox1c or 0x20 for better results. It is not documented but there seems to be a bit of info aroud the net since a lots of Soc manufacturers use it.
Because the project I am involved in requires to use an external USB hub Cypress HX3 based for various input devices, I had the chance to observe quite a few issues with for example one or more USB keyboards and a touchscreen controller USB plugged in at the same time. dwf