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Venkatesh Chilapur


MathWorks

136 total contributions since 2017

Venkatesh Chilapur's Badges

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Answered
How to increase acquisition frequency in real time? (TI Board F28379D)
Hi Jessé/Taimur, You can use the 2 model approach when running computation intensive algorithms at high sample rate for data lo...

7 days ago | 0

Answered
How to measure control law execution time in Launchxl-F28379D?
Hi Enric, Attached is the model which helps you to achieve the same in simulink w.r.t GPIO bit activation and deactivation. Fe...

7 days ago | 0

| accepted

Answered
Embedded Coder for C2000
Hi Richard, Attached is the model which i found to be working for DAC-A. The model is created in 2018b version of MATLAB. I fo...

8 days ago | 0

Answered
extra signals DMA example epm Duty Cycle
Hi Gauthier, That can complicate things as the DMA runs in steps of 1, picking next value from table until 500 such iterations ...

9 days ago | 0

| accepted

Answered
extra signals DMA example epm Duty Cycle
Hi Gauthier, As I mentioned, since the Master ePWM is configured to react on CMPA count and we update the same using DMA ch 1, ...

9 days ago | 0

Answered
extra signals DMA example epm Duty Cycle
Hi Gauthier, I may need your model. Can you attach the up to date model.? Regards, Venkatesh C

12 days ago | 0

Answered
extra signals DMA example epm Duty Cycle
Hi Gauthier, If you get 200 values in the duty cycle table then you may need to update the DMA configuration w.r.t this. We set...

12 days ago | 0

Answered
extra signals DMA example epm Duty Cycle
Hi Gauthier, To implement deadband, please do the following. Keep all box un-checked for the ePWMxB as shown below as to produ...

13 days ago | 0

Answered
extra signals DMA example epm Duty Cycle
Hi Gauthier, Keeping aside the operation of DMA in this example, we can synchronize the PWM output with help of following confi...

15 days ago | 0

Answered
extra signals DMA example epm Duty Cycle
Hi, Please refer this video: https://in.mathworks.com/matlabcentral/fileexchange/49109-dual-motor-control-with-ti-launchxl-f28...

16 days ago | 0

Answered
extra signals DMA example epm Duty Cycle
Hi Gauthier, You may not need other DMA's for generating rest of the PWM's. Once you have the First ePWM working, you can sync...

16 days ago | 0

Answered
ADC SCI f28335 problem
Hi Samuel, It may be a good idea to contact us @ https://in.mathworks.com/support/contact_us.html. That can help us better und...

16 days ago | 0

Answered
Modify Duty Cycle of ePWM Using DMA
Hi, Please can you run the command at the command prompt: >>which sineTableCalculation.m This will give you the path to the f...

19 days ago | 0

| accepted

Answered
ADC SCI f28335 problem
Hi Sam, Are you running the model in external mode? Can you try increasing the baudrate of the SCI and see if it helps. Ther...

21 days ago | 0

Answered
TI C2000 code generation generates double data type functions instead of single ones
Hi, Please note that the CRL we support are meant to be used for fixed point math. These CRL's don't support float operations. ...

22 days ago | 0

Answered
S-function works in normal mode but doesn't in external mode
Hi, Could run the model in external mode and could recieve only zero. I have not debugged the S-Function, but I can recommend ...

23 days ago | 0

Answered
S-function works in normal mode but doesn't in external mode
Can you do a crtl+j and send the snap of Sample Time Legend that pop's up as below.

28 days ago | 0

Answered
S-function works in normal mode but doesn't in external mode
Hi, When deploying the model on target we configure it for Fixed step disctere solver as the controller runs in discrete amount...

29 days ago | 0

Answered
how to execute SCI communication
Hi, Please can you attach the model or snapshots? Do you run one of them in external mode? How are you ensuring the communicati...

1 month ago | 0

Answered
ExtTargetPktPending() call failed while checking for target pkt
Hi, A solution depends upon which controller is used, is it controlcard or launchpad? which version of the MATLAB like 2018x? ...

1 month ago | 0

Answered
TMS320F28069M: File C:\ProgramData\MATLAB\SupportPackages\R2018b\toolbox\target\supportpackages\tic2000\registry\thirdpartytools\thirdpartytools_win64.xml not found
Hi, Could you please run the 'targetupdater' to configure the supportpackage first. Regards, Venkatesh C

1 month ago | 0

Answered
Access multiple I2C sensors with C2000 and simulink
Hi, You may also look in to the implementation of the example model 'c28x_i2c_sensor' here we are sequencing the Tx and Rx oper...

1 month ago | 0

Answered
Access multiple I2C sensors with C2000 and simulink
Hi, Please can you refer the example model ' c28x_i2c_eeprom_interrupt'. From this example model one can observe the use of C28...

1 month ago | 0

Answered
TMS320F28335: Model for Simulink based buck converter control
Hi, Please let us know if this example works for you. The example would use the ADC and PWM module. https://in.mathworks.co...

1 month ago | 0

Answered
C2000 eCAN bus-off condition
Hi, Adding the below line of code should help! HWREG(CANA_BASE + CAN_O_CTL) |= CAN_CTL_ABO; Regards, Venkatesh Chilapu...

2 months ago | 0

Answered
C2000 eCAN bus-off condition
Hi, We provide custom code blocks under simulink coder->custom code->System Initialize using which you may initialize the ABO b...

2 months ago | 1

Answered
[f28335] I2C transmit status
Hi, Please refer to below link: https://in.mathworks.com/help/supportpkg/texasinstrumentsc2000/ref/c28xi2ctransmit.html The s...

3 months ago | 0

Answered
I want to generate code for TI-Launchpad F28069M by using Simulink. Currently I am using Matlab2016b. Is it possible to genarate code for CCSv8 ? Can you provide me the steps I should follow ?
Please refer the below link for list of compatible CCS and MATLAB version. http://software-dl.ti.com/ccs/esd/documents/ccs_matl...

3 months ago | 1

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