Re: [beagleboard] eQEP not reading meaningful values

2017-02-07 Thread Hugh Frater
I got it to work properly in 4.4.x - using the universal cape and running config-pin P8_11 qep & config-pin P8_12 qep On Friday, 3 February 2017 16:55:42 UTC, abhilash h wrote: > > For sure it will work. > On Fri, 3 Feb 2017 at 9:33 PM, Hugh Frater > wrote: > >> I'll give

Re: [beagleboard] eQEP not reading meaningful values

2017-02-03 Thread abhilash h
For sure it will work. On Fri, 3 Feb 2017 at 9:33 PM, Hugh Frater wrote: > I'll give 7.9 a go and let you know my findings, thanks. > > > On Friday, 3 February 2017 13:40:05 UTC, abhilash h wrote: > > I had used debian 7.9 > > On Fri, 3 Feb 2017 at 7:05 PM, Hugh Frater

Re: [beagleboard] eQEP not reading meaningful values

2017-02-03 Thread Hugh Frater
I'll give 7.9 a go and let you know my findings, thanks. On Friday, 3 February 2017 13:40:05 UTC, abhilash h wrote: > > I had used debian 7.9 > On Fri, 3 Feb 2017 at 7:05 PM, Hugh Frater > wrote: > >> Thanks, I'm currently trying to downgrade to a 3.8 revision, 1st attempt

Re: [beagleboard] eQEP not reading meaningful values

2017-02-03 Thread abhilash h
I had used debian 7.9 On Fri, 3 Feb 2017 at 7:05 PM, Hugh Frater wrote: > Thanks, I'm currently trying to downgrade to a 3.8 revision, 1st attempt > resulted in a 'won't boot, all the LEDs are on' so I guess I missed a step. > > > On Friday, 3 February 2017 13:31:00 UTC,

Re: [beagleboard] eQEP not reading meaningful values

2017-02-03 Thread Hugh Frater
Thanks, I'm currently trying to downgrade to a 3.8 revision, 1st attempt resulted in a 'won't boot, all the LEDs are on' so I guess I missed a step. On Friday, 3 February 2017 13:31:00 UTC, abhilash h wrote: > > I had used debian . And it worked with busybox rfs and 3.8 kernel also . > On Fri, 3

Re: [beagleboard] eQEP not reading meaningful values

2017-02-03 Thread abhilash h
I had used debian . And it worked with busybox rfs and 3.8 kernel also . On Fri, 3 Feb 2017 at 6:20 PM, Hugh Frater wrote: > Hi Abhilash, > > That's interesting, I will try and downgrade. May I ask what image you are > using now (Angstrom, Debian etc)? > > Hugh > > > On

Re: [beagleboard] eQEP not reading meaningful values

2017-02-03 Thread Hugh Frater
Hi Abhilash, That's interesting, I will try and downgrade. May I ask what image you are using now (Angstrom, Debian etc)? Hugh On Friday, 3 February 2017 12:36:34 UTC, abhilash h wrote: > > Hi hugh, > > It never worked for me in 4.x kernel. I used to get same values. So i > swutched back

Re: [beagleboard] eQEP not reading meaningful values

2017-02-03 Thread abhilash h
Hi hugh, It never worked for me in 4.x kernel. I used to get same values. So i swutched back to 3.8 kernel . On Fri, 3 Feb 2017 at 5:47 PM, Hugh Frater wrote: > Hi, I'm getting started on a control system that needs to read 2x > quadrature encoders. One is a 1000 line,

[beagleboard] eQEP not reading meaningful values

2017-02-03 Thread Hugh Frater
Hi, I'm getting started on a control system that needs to read 2x quadrature encoders. One is a 1000 line, the other a 2000 line, but that is really immaterial. I have the physical interface sorted (one needs a 26lv32 to glue it to the BBB, the other is open collector), and the traces look