Hi David: Thanks for your information. My problem is I did not add a more entry in the core_info.tab file. Now I could read and write the ADC control memory space.
But I meet another problem immediately. It seems that only one of 6 bus2ip_ce will response my read and write. Is there anyone has some successful experience on read and write iadc_control register? Thanks Wan -----Original Message----- From: David George [mailto:david.geo...@ska.ac.za] Sent: Tuesday, 4 August 2009 4:51 PM To: Cheng, Wan (ATNF, Marsfield); casper@lists.berkeley.edu Subject: Re: [casper] How to read and write ADC register Hi Wan. It seems like you need to work out how the CASPER build works. A good thing to do would be to look at exactly how the iadc works. Look closely at the pcore, system.mhs and xps_library/*/* files. Find any mention of the 'adc' or 'xps_adc' in all the xps_library files and compare it to what you have for your custom adc design. The unix command 'grep' is useful for grovelling through files. Once you have seen how it has been done for the iadc, you should be able to understand/copy the mechanics for your own adc. Also have a look at the yellow block guide: http://casper.berkeley.edu/wiki/How_to_make_a_%22yellow%22_block 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
