CCS/TMS320F28379D: SFRA GUI communication issue and SFRA injection function

Chen Li7

Part Number: TMS320F28379D
Other Parts Discussed in Thread: SFRA, TMDXIDDK379D, C2000WARE

Tool/software: Code Composer Studio

Hello.

I am trying to consolidate SFRA code into IDDK_PM_Servo_F2837x-v2 code. I have modified code and cmd file and the code can be compiled successfully. But there are still two problems.

1. I have set the SCI module as follows, but SFRA gui cannot communicate with the control board.

GPIO_SetupPinMux(28, GPIO_MUX_CPU1, 1);
GPIO_SetupPinOptions(28, GPIO_INPUT, GPIO_PUSHPULL);
GPIO_SetupPinMux(29, GPIO_MUX_CPU1, 1);
GPIO_SetupPinOptions(29, GPIO_OUTPUT, GPIO_ASYNC);

SCIA_Init(50000000, 57600);

2. I tried to use SFRA tool directly and not use SCI module, so I modified code as follows and set SFRA1.start as 1. I found SFRA1.FreqIndex increased and SFRA1.state changed between 2 and 3, but when I checked the pi_iq.Ref with oscilloscope, I found that the waveform of this variable was DC component. Even though I increased the injection amplitude, the waveform didn't change. Meanwhile, the value of pi_iq.Ref didn't change in watch window.

pi_iq.Ref = SFRA_F_INJECT(pid_spd.term.Out);

Could you help me deal with these two issues?

Thanks

over 5 years ago

0 Ramesh Ramamoorthy over 5 years ago

TI__Mastermind 27240 points

1. If you have an IDDK kit, can you check if these work properly. Use the same settings.

2. It is surprising. Check the code again, the magnitude must be reading in as zero probably.

0 Chen Li7 over 5 years ago in reply to Ramesh Ramamoorthy

Prodigy 90 points

1. I used the same setting on IDDK kit before, but SFRA GUI was not able to connect with control board;

2. I tried to make the change as following, and the value of pi_iq.Ref is 0.5 in the watch window and there is not any sinusoidal component in the waveform of this variable.

pi_iq.Ref = SFRA_F_INJECT(0.5);

Thanks

0 Ramesh Ramamoorthy over 5 years ago in reply to Chen Li7

TI__Mastermind 27240 points

1. The IDDK code is functional, your implementation may have overlooked few settings. Pls review the example project in MCSDK at

C:\ti\c2000\C2000Ware_MotorControl_SDK_3_00_01_00\solutions\tmdxiddk379d\f2837x

2. Will loop in the expert for help.

0 Manish Bhardwaj over 5 years ago in reply to Ramesh Ramamoorthy

TI__Mastermind 43730 points

chen,

Can you update if the issue is resolved?

-Manish

C2000™︎ microcontrollers

C2000 microcontrollers forum

CCS/TMS320F28379D: SFRA GUI communication issue and SFRA injection function