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CCS/TIDA-00210: reference software for evaluating TIDA-00210 bipolar steppr driver

Part Number: TIDA-00210
Other Parts Discussed in Thread: DRV8412

Tool/software: Code Composer Studio

I have Launchpad F28069M board.

For years, i have been evaluating closed loop stepper driver kits of TI.

I am making prototype of TIDA-00210 board 2 sets.

I want to use reference software to test the module and algorithm development on the Launcpad F28069M.

Where is the reference software code  ? I coudn't find it.

Can I use same code of C2000 piccolo reference code for closed loop stepper kit ? (  DRV8412 EVM - I have this evm )

Thanks.

  • Dear Paul,

    thank you for your interest in the TIDA-00210 reference design.

    The aim of that design was to validate the power stage and we have not developed any bipolar stepper drive software for this design.

    Regarding software: I assume you refer to the Piccolo software "Microstepping of Bi-polar Stepper Motors". We cannot use that same software and run on TIDA-00210. Unfortunately we do not have any document, which describes the changes to port this software to the TIDA-00210. 

    We neither have a hardware porting guide which outlines all the differences between the TIDA-00210 and the DRV8412 EVM. Example differences between DRV8412 and TIDA-00210 are the PWM interface and current sensing.

    The DRV8412 use a single PWM input per half-bridge, while the TIDA-00210 requires a PWM for both the low-side and the high-side gate drivers of each half-bridge and when driving in complementary PWM mode a dead time need to be considered.

    The DRV8412 EVM has a low-side shunt on each half-bridge leg, while the TIDA-00210 has a high-side shunt per full-bridge. That means for TIDA-00210 we can only measure the stepper phase current when two opposite FETs (one high one low side FET) are on. In slow decay when the current is freewheeling, the high-side shunt amplifier will not measure that current, hence the output will be equivalent to a zero current.

    Regards,

    Martin Staebler