Thank you for the answer. I finaly decided to make a custom hardware with a STM32 to match the accurity that i want, the speed factor isn't important an it simplify the global design. A nice 6 layers PCB tha fit in the HMI case of the machine.
[image: MFCnc-CPU429.jpg] If you're interested, I've hosted the project to Grabcad. Here is the link: https://grabcad.com/library/mfcnc-dx-2 Thank you and best reguards. F.Declercq Le dimanche 23 février 2020 19:42:05 UTC+1, TJF a écrit : > > The AM335x CPU has three PWM subsystems, each one containing an eQEP > module. So three rotary encoders are supported by the hardware (speed and > direction/position @ 100 MHz counters). > > In order to measure speed only (no direction/speed) you can use the eCAP > modules in two of that subsystems (the third one isn't wired to any header > pin). Or you can use one of the four TIMER subsystems (24 MHz counters). > > If you need a fourth direction/position sensor, there's a PRU firmeware in > the BBBlue package. > > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/0e4c5bbf-4f60-475b-959d-9e3235c61d19%40googlegroups.com.
