Hi David: It seems to start working now. But I have not finished the compiling.
I check the mhs file, the function is implemented correctly. Hope all pin definition are right. Wan -----Original Message----- From: David George [mailto:david.geo...@ska.ac.za] Sent: Friday, 16 October 2009 6:06 PM To: Cheng, Wan (ATNF, Marsfield) Cc: casper@lists.berkeley.edu Subject: Re: [casper] The Roach GPIO error in casper library Hi Wan > > When I use ROACH:GPIO in casper library, I was told "undefined routing > table for hardware system: ROACH(gpioA)". > This error indicates that the bus you have selected (gpioA) hasn't been populated in the BEE2_hw_routes.mat routing table. The routing table contains the mapping between the various GPIO busses, e.g zdok/leds, and theirs associated pin locations (ucf pin constraints). I recommend that you load the file into matlab and fiddle around with it, you'll get the idea. As of the 14th of August 2009 the single-ended IO on ROACH has been integrated into the casper toolflow. After updating your svn you should see gpioa, gpioa_oe_n, gpio_b and gpio_b_oe_n in the GPIO block. If you don't, try reverting to the library gpio block. These should provide you with access to the ROACH single-ended GPIO. You should note that you need to control the direction buses of the GPIO using the gpioa_oe_n and gpiob_oe_n output enables signals. So setting gpioa_oe_n to '0' (active low) will set the whole gpioa bus to outputs and '1' to inputs. Regards, David -- David George Digital Design Engineer Karoo Array Telescope Tel: +27 21 531-7282 Fax: +27 21 531-9761 Email: david.geo...@ska.ac.za Web: www.ska.ac.za
