How many rotary encoder does a TMS2812 support?

Edward

Hello,

I am new to DSP, I am now working on a project. I need to control six motors, and I may need six encoders. Question is how many encoder does one 2812 support, what about 28335? I checked the documents of QEP module, but did not see how many encoders a chip supports. Help!

Thanks in advance!!

over 9 years ago

0 Gautam Iyer over 9 years ago

Guru 192875 points

Hi Edwards,

Both F2812 & F28335 have 6 Capture and 2 Quadrature Encoder Pulse channels. So if you're looking for QEP channels then its 2!
You can find the same on their product pages.

Regards,
Gautam

0 Brett Larimore over 9 years ago in reply to Gautam Iyer

TI__Guru 57255 points

Hi Edward,

What type of encoder will you be using?

If you're using a TTL incremental encoder (which is probably true), then Gautam's comments are valid. The QEP is the proper peripheral for interfacing.

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I'd recommend looking at the C2000 brochure (C2000 Real-Time Microcontrollers) to help you get an overall viewpoint of the C2000 family:
http://www.ti.com/lsds/ti/microcontrollers_16-bit_32-bit/c2000_performance/real-time_control/tech_docs.page

Depending on your other project requirements, using multiple C2000 devices may be feasible (and it is possible to synchronize PWMs between the C2000 devices).

Thank you,
Brett

C2000™︎ microcontrollers

C2000 microcontrollers forum

How many rotary encoder does a TMS2812 support?