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About AM335x eQEP

g.f.
Guru 15520 points

Hi,

I have questions about AM335x eQEP.

1.What is the max QEP input frequency supported in AM335x eQEP?
  In TMS320F2806x datasheet there are Electrical Data/Timing table for eQEP,
  and written about QEP input period. But there are no table written in AM335x datasheet.
  From AM335x TRM, PWMSS interface/function clock is 100MHz max
  so I guess 50MHz is the max QEP input frequency. Is it correct?

2.What is the max speed that eQEP can calcutate?
  Is it depend to max QEP input frequency?
  So, if 50MHz is max QEP input frequency, 50MHz is max speed which eQEP can caculate.
  Is it correct?

3.There are QEPA and QEPB, so is this means QEP are supporting two phase input?

 best regards,

g.f.