How do I control the speed of the motor using the code sample of the HVACI_Sensorless_PFC Project?

Hi Robin, Thanks for reaching out.  Please expect a delay in reply due the long weekend in observance of Dr. Martin Luther King day.  Regards, Krishna

Yes, the GUI must use the JTAG emualtor for communication between the PC with GUI and C2000 controller. It can't be used directly for receiveing the data from the nano-computer as you want. You have to add the interface codes in the motor control project with C2000 controller to receive the control command from the host controller you used.

If you just want to evaluate the example project to control motor, you may directly run the project within CCS and follow the application note or the lab guide to start/stop and run the motor with the setting speed.

Yanming Luo said:

You have to add the interface codes in the motor control project

OK, are there some sample projects I could potentially look into? 

What type motor are you using? PMSM or ACIM? Low voltage or High voltage motor?

You can find many motor control example projects in MotorWare or MotorControlSDK as the link below.

C2000WARE-MOTORCONTROL-SDK: http://www.ti.com/tool/C2000WARE-MOTORCONTROL-SDK

MotorWare: http://www.ti.com/tool/motorware

And you may take a look at the pages below for motor control with C2000.

http://www.ti.com/microcontrollers/c2000-real-time-control-mcus/applications/motor-control.html

https://training.ti.com/c2000-motorcontrol-training-series

Thanks so much, I will look into the linked resources, it really helps.

The kit uses a high-voltage ACIM, and it works great with the examples provided, except it does not have any interaction capabilities discernible in the code.

I am looking at the Technical Reference Manual for TMS320C2803X (literature reference: SPRUI10), I see information on SPI, SCI, I2C and CAN, but I don't see examples of JTAG communication, nor have I seen code exemplifying any form of communication between the microcontroller and an external system, other than something for Hercules ARM (literature reference SPNA124A).

At this point, I am not sure where to look for the JTAG communication literature. 

Thanks so much!

Robin

Hi Robin,

JTAG is used for debug and not meant for standalone device-to-device communication. I think the GUI composer is interacting with the device through the Debug Scripting Server using JTAG.

In your case, since you are trying to send commands to the host MCU through another controller, you should use one of the various communication protocols e.g SPI, SCI, etc and not try to do it through JTAG since you are not debugging the application. You can setup your raspberry pi to send the commands through one of  those comm interfaces and program the application to respond to them. Let us know if this is not clear.

Thanks Frank,

This helps, as it gives me direction and possible avenues to explore. 

Are there some code samples I could look into? I know the Technical Reference Manual tells about how to configure those communication devices, but I am not sure how to practically achieve PC to MCU communication.

Again, thanks so much!

Robin

Hi Robin,

Besides the TRM, we have comm examples in C2000Ware. We also have additional training in C2000 Academy.

I wasn't clear on this statement of yours:

Robin Molnar said:

practically achieve PC to MCU communication

For PC to MCU communication, you can keep using the JTAG like you are currently doing. Let us know if there are more questions.