On 3/12/2015 3:37 PM, [email protected] wrote: > > Hello, > > I recently come across eQEP Module. And I'm curious to know it's maximum > input frequency of encoder channel. > > Basically, I'm using Pololu's 50:1 Geared Motor (200 RPM) with Encoder (64 > CPR), and I'm not sure if eQEP will support it. > > The calculation says that, on one revolution of the motor (the geared > shaft) will cause 64x50 = 3200 ticks. > At 200 RPM, it will cause 640k ticks/minute, that makes approx 10.6k > ticks/second. > > Since the number is too large, I doubt eQEP will be able to keep track of > the position. I cannot find a proper document where the maximum speed is > stated. > > Help will be appreciated.
You could easily count 10 KHz in software using the PRU. The eQEP modules are typically clocked by 100 MHz clock signal, so I wouldn't start worrying about the hardware keeping up until you get over 10 MHz or so on your count frequency. -- Charles Steinkuehler [email protected] -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
