TMDSCNCD28335: TMDSCNCD28335

Hi,

Are you able to connect the F28335 device in code composer studio with a JTAG connection? Also, are you following any specific documented instructions to connect with PSIM? 

Best Regards,

Ben Collier

I connect the F28335 device in code composer studio with USB cable connection, it loaded the code in the kit well. To run this example I am following this  documented instructions: https://dokumen.tips/documents/tutorial-using-sci-for-waveform-monitoring.html?page=1

Hi,

Could you please try putting your device in SCI-A boot mode by using SW2 on your controlCard? 

Best Regards,

Ben Collier

I turn position1 off (0) in SW2 like this picture but also it did not work and show this message in psim

Hi,

Is this a different error message than the one you saw before? 

Best Regards,

Ben Collier 

Yes, It is different 

Hi,

I am not really sure what else to try for this since I am not that familiar with PSIM. Are you able to try the configuration with the RS-232 cable? 

Best Regards,

Ben Collier

Thanks for your help!

Rs-232 cable is not available for me 

Are you able to reach out to PSIM for support? 

I will try to get the e-mail of the PSIM support

If I want to buy an Rs-232 cable for this case what things should I be sure to buy it? can you show me its photo for this dsp device?

Hi,

This is from the instructions that you linked in an earlier response: 

They give some details about which RS-232 to use with your controlCARD. Hopefully you have better results with this type of connection. It looks like they give more instructions for using the RS-232 than the USB cable. Also, I would make sure to try different settings for SW1 and SW2.

Best Regards,

Ben Collier

Thanks for your help!

Ok, I will curious to see if you get different results this way. 

I got the Rs-232 cable and connected  it  with the DSP. It shows the connection is successful when I did the test in DSP oscilloscope so the last error had gone. But  there is an issue no variable shows. As I returned all SW1 and SW2 to default mode (Set SW1 to ON and SW2 position 1 turns to on) since I use now a RS-232 cable.

 so I need your help to know how to change DSP hardware as the attached photo shows.

And the Code composer shows an error that variables not identified: 

Hi, 

In CCS, could you try running and then halting the program? Then could you refresh your expressions? Also, could you please show where those variables are declared? 

Best Regards,

Ben Collier

When I refresh the expressions, it shows the same error.

The variable declared in Psim file _that attached below_ inserted in the psim simulation file

(Global_Iq0)START=1         // 0: Disable PWM, 1: Enable PWM
(Global_Iq0)VdTesting1=0.2
(Global_Iq0)VqTesting1=0.2

(Global_Iq0)SpeedRef1 = 0.3       // Speed reference at the start. 0.3 pu

RampRate=1          // To reduce simulation time, set RampRate=1
                               // To generate code for hardware, set RampRate=5 or larger

PI=3.14159265
POLES=4                          // Number of poles
BASE_VOLTAGE=236.74   // Base peak phase voltage (volt)
BASE_CURRENT=10         // Base peak phase current (amp)
BASE_FREQ=120             // Base electrical frequency (Hz)
BASE_RPM=120*(BASE_FREQ/POLES)     //Base motor speed in rmp



RS=11.05  
Rr=6.11
Lr=0.316423                      // Stator resistance (ohm)
LS=0.316423       // Stator inductance (Hr)


MotorFreq=10K          // Motor PWM switching frequency, in Hz
T=1.0/MotorFreq
SpdFreq=1K               // Speed loop frequency
MinDelta = 0.0000305    // Speed change step

Hi,

I am sorry, again I am not familiar with PSIM, so I am not sure why you are not able to see the variable. I will need to reach out to a  coworker to see if they have any idea.

Is the TI_DMC_HV_ACI_F28335_Sensored.rar file included in your CCS project? If so, where? 

Best Regards,

Ben Collier

Hi,

Have you tried following any other PSIM tutorials like this one? https://www.youtube.com/watch?v=lNQfIY7pjmo

Just curious if you were able to have any success following a different set of instructions.

Best Regards,

Ben Collier