Thanks David and Jason. Nimish
On Thu, Feb 9, 2012 at 1:38 AM, Jason Manley <[email protected]> wrote: > The two GPIO banks are labelled "led" and "gpio" in the yellow block. You > do not need to set any direction buffers as with ROACH1, though as a > result, the voltage levels are somewhat different as they come straight out > of the FPGA (lower, LVCMOS15 if memory serves). > > "led" is the 8 bit GPIO bank that is hard wired together with the eight > onboard LEDs, aka P15/FPGA GPIO/LEDs. > "gpio" is the 8 bit bank P13/FPGA GPIO. > > I have noticed that the schematics on the wiki are outdated (rev 0) and > that the ROACH2 stuff still isn't up on github (https://github.com/ska-sa/). > I will chat with the relevant people to try'n get this fixed later today so > that you have the actual schematics. > > Jason > > > > On 08 Feb 2012, at 21:33, Nimish Sane wrote: > > > Hi all, > > > > Is there any documentation for ROACH 2 specific GPIO interface? If not, > can someone throw light on how to configure the GPIO yellow block for ROACH > 2. From the available configurations in the yellow block, I understand that > there are no GPIO groups A and B, and need for direction selector yellow > blocks as in Roach 1. The image of ROACH 2 GPIO header on wiki shows there > are two groups with pins 0 -7 on one header and 8-15 on the other. Are > there any specifications/constraints on pins available for input/output and > how they should be configured? Also, do pin numbers in the yellow block > match the physical layout? > > > > I am using libraries available from the ska-sa fork. > > > > Thanks, > > > > Nimish > >
