TMS320F2800137: F2800137 AND HALL sensors based FOC not supported, why?

Christiaan Arum

Tool/software:

When looking through the universal motorcontrol lab for the f2800137 device, i saw this:

#if defined(MOTOR1_HALL) && defined(_F280013x)
#error HALL sensors based FOC is not supported on this device
#endif  // MOTOR1_HALL & _F280013x

Why is this?

A little bit of context: I would like to configure my LAUNCHXL_F2800137 and BOOSTXL_DRV8323RS to run on HALL sensors FOC control at startup (to start from standstill) and switch to sensorless FOC control at higher speeds (motor speed to switch is to be determined).

over 1 year ago

0 Jiaxin Teng over 1 year ago

TI__Expert 6230 points

Hi Christiaan,

This is because the F2800137 device only has two eCAP module. The classic implementation of hall sensor based control requires three eCAP peripherals.

Thanks,

Jiaxin

+1 Christiaan Arum over 1 year ago in reply to Jiaxin Teng

Prodigy 210 points

Thanks for the reply.

If this implementation in the lab is not possible for the TMS320F2800137, then what is the recommended implementation by TI for a 3 hall sensor control algorithm? Is there an example for this implementation?

0 Christiaan Arum over 1 year ago in reply to Christiaan Arum

Prodigy 210 points

Hi Jiaxin,

Could you get back to me? We are currently estimating the required hours to convert a fully sensorless motorcontrol device to a HALL sensor + sensorless device. For me to estimate the hours i need to know what the recommended implementation by TI is for a 3 hall sensor control algorithm on the TMS320F2800137.

0 Jiaxin Teng over 1 year ago in reply to Christiaan Arum

TI__Expert 6230 points

Hi Christiaan,

You can refer to the universal motor control lab SW example for F28002x and F28003x, which contains the HALL sensor based control implementation.

Thanks,

Jiaxin

0 Christiaan Arum over 1 year ago in reply to Jiaxin Teng

Prodigy 210 points

Hi Jiaxin,

The mentioned HALL sensor based control implementations on the F28002x and F28003x both use 3 eCAP modules. So this can't be a recommended implementation of a 3 HALL sensor based control implementation for the TMS320F2800137.

0 Jiaxin Teng over 1 year ago in reply to Christiaan Arum

TI__Expert 6230 points

Hi Christiaan,

Right. The example implementation of HALL sensor based control is only classic method which needs 3 eCAP modules, thus there is no existing example with F280013x. You may need to investigate how to read in the HALL sensor signals with just 2 eCAP modules if you want to use F280013x device.

Thanks,

Jiaxin

0 Christiaan Arum 11 months ago in reply to Jiaxin Teng

Prodigy 210 points

So, in short, there is no example from TI on HALL sensor based control on the TMS320F2800137?

0 Jiaxin Teng 11 months ago in reply to Christiaan Arum

TI__Expert 6230 points

Hi Christiaan,

Yes. The public examples are all based on 3 eCAP modules.

Thanks,

Jiaxin

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TMS320F2800137: F2800137 AND HALL sensors based FOC not supported, why?