As per my understanding, you are trying to interface BOOSTXL-DRV8320H with LAUNCHXL-F280049C for BLDC Sensor-less motor control.
I think that you are referring to the shipped example by MathWorks:
This example uses F28069D or F28739D Launch-pad.
Refer to the reference manual for F28739D and F280049C from Texas Instruments, which can be downloaded from below "Technical documentation" tab seen in the websites:
We can see that the pinout and peripheral configurations for both the launch-pads are different and therefore we cannot directly use F280049C in place of F28379D.
Follow the below steps, which may help you to interface BOOSTXL-DRV8320H with LAUNCHXL-F280049C
1) As a first step, ensure that you correctly connect the pins of (BOOSTXL-DRV8320H) to the LAUNCHXL-F280049C. Refer to the data-sheet of BOOSTXL-DRV8320H: https://www.ti.com/tool/BOOSTXL-DRV8320H#tech-docs For an example, the pin 6 of "J1" jumper of BOOSTXL-DRV8320H outputs the sensed voltage. Therefore, connect it to one of the ADCIN (ADC input) pins of (LAUNCHXL-F280049C). Repeate this procedures for all the pins and peripherals.
2) BOOSTXL-DRV8320H is a three phase inverter with all the protections and other features build in it. It is controlled by LAUNCHXL-F280049C. Therefore, DRV8320H does not need any driver code to integrate with Matlab code. But, You need some of the tools from Texas instruments that are essential to build and deploy the code for F280049C . In order to install them, execute the below command in MATLAB command window
c2000setup
This will open an installation wizard, which will have the list of all the necessary third party tools. Navigate to the links and download all of the tools that are listed. After you are finished installing all the tools, proceed to further steps in the installation wizard and provide the correct installation path for all the tools.
3) Once you finish with steps 1 and 2, Open the simulink model by executing the below command in MATLAB command window:
openExample('mcb/SensorlessFocFOSMOExample')
Here, all the peripherals (PWM, ADC, QEP etc) are configured for F28379D launch pad. But, as you want to integrate it with F280049C, you need to reconfigure all the peripherals as per the connections you made in step (1). REMEMBER: The peripheral blocks appearing in the shipped example are for F28379D. Therefore, delete those blocks and replace them with the appropriate peripheral blocks appearing in the library as shown below:
4) Open the hardware configurations by clicking on "Hardware Settings" icon appearing in the "Hardware Tab as shown below:
5) Change the "Hardware board" to "TI Piccolo F280049C LaunchPad" by selecting from the dropdown menu. Also, reconfigure all the peripherals as per connections made in step (1) , by expanding "Target hardware resources" drop-down as shown below:
6) If you face any difficulty in configuring the peripherals for F280049C, refer to the following documentations from c2000 Microcontroller blockset.
8) The dead time duration is decided by the turn-on and turn-off time of the power electronic switches used in the inverter leg. You are only changing the conroller board, not the inverter. Therefore, you can keep it the same. Usually, the deadband depends upon the power electronic switch used. It should be large enough to allow the switche to be completely OFF. On other hand, it should not be too large, else it will affect the dynamics of inverter. Try to keep deadband below 0.1 micro-seconds. Presently it is set to 15 cycles, which roughly equals 0.08 microseconds. (F28379D operates at 200MHz). In your case, F280049C operates at 100MHz. You can program the "RED" and "FED" accordingly.
7) The most appropriate way to measure the PWM signals is to use voltage probes and an oscilloscope to probe the PWM signal from ePWM pins of F280049C launchpad. Set the time division to 0.1 microseconds per division to observe the deadband.
I hope this clearifies your question !
