Hi, Henno, I think the problem is that the opb_katadccontroller pcore has an autoconfig.v file in the ROACH1 base system, but that file (and therefore its functionality) does not exist in the ROACH2 base system, so it's like the "Bypass auto config" option is always checked on ROACH2. The autoconfig.v file looks like it programs registers on the ADC chip itself using registers inside the kat_adc_controller device (as named in core_info.tab), so I assume anyone using KATADC with the "bypass auto config" option checked will have an example of how to program the ADC chip's registers from software that will be equally (if not more!) valid on ROACH2 as on ROACH1. Maybe the autoconfig stuff only matters for interleaved operation or maybe nobody uses KATADC with the "Bypass auto config" option checked on ROACH1?
FWIW, I built a test model for ROACH2 using KATADC and the data_valid output from the ADC stays low, but I'm not exactly sure what that means. I have the latest kat_adc_iic_controller, but what do I need to do with it to get the card working? Thanks, Dave On Jul 1, 2013, at 12:42 AM, Henno Kriel wrote: > Hi Nimish > > I suspect your problem is related to the KATADC I2C contoller for ROACH2. I > had to modified it to work with the EPB 32bit bus and related byte enables > access a while ago. Just check the your KAT_ADC_IIC_CONTROLLER pcore against > the in the SKA-SA repo. This might explain why your ADC is not getting > properly set up. > > Regards, > Henno > > > On Sat, Jun 29, 2013 at 1:43 AM, Nimish Sane <[email protected]> wrote: > Hi all, > > Resending an earlier message in case somebody who knows this missed it. We > believe (and Dave Macmahon confirms from his tests) that for using KATADC > with ROACH2, it needs to configured through software (corr package?) to make > it usable. Does anyone have any clue regarding what parameters needs to be > configured, what are the corresponding python utilities and what are the > correct settings? > > Thanks a lot, > > Nimish > > On Fri, Jun 21, 2013 at 4:22 PM, Nimish Sane <[email protected]> wrote: > Hi all, > > Can someone throw light on how to configure the KATADC yellow block so that > one can use some of the python wrappers in corr package to configure it from > the katcp interface? > > The KATADC yellow block has two fields "ADC Interleave mode" and "Bypass auto > config", which we normally leave unselected. We do not configure any > parameter from the python/katcp interface using corr package utilities. We, > however, recently learnt that some of these parameters can be (or should be!) > configured using those utilities and we would like to know if and how that > can be done. If someone could provide information on which python utilities > to use and what are the valid parameter settings, that would be useful. Also, > in order to do that, does the yellow block have to configured in a particular > way? > > Thanks, > > Nimish > > > > > > -- > Henno Kriel > > System Architect: MeerKAT Digitiser > > SKA South Africa > Third Floor > The Park > Park Road (off Alexandra Road) > Pinelands > 7405 > Western Cape > South Africa > > Latitude: -33.94329 (South); Longitude: 18.48945 (East). > > (p) +27 (0)21 506 7300 > (p) +27 (0)21 506 7365 (direct) > (f) +27 (0)21 506 7375 > (m) +27 (0)84 504 5050
