TIDA-010938: How to reduce the execution time for Interrupt ISR if ISR fre. 21.667KHZ.

ABDUL JAVED

Part Number: TIDA-010938

Tool/software:

I have already change optimization setting but still the problem will be same and if you can check in your end with same example code and build in launchpad so can easily check issue and maybe you suggest fast.

for better clarification: debug mode @ 21.66khz ISR positive width observe 15us but during free run same ISR routine shows time 36usec.

4 months ago

0 Vedatroyee Ghosh 4 months ago

TI__Intellectual 855 points

Hi Abdul,

1. Just to clarify, by release mode you mean running from flash?

2. Which lab are you checking in this case?

2. Have any changes been made to the code?

3. Typically I recommend running lab 1 with the launchpad, to see basic functionalities and remaining labs with the hardware, since we also run for fault conditions. When running other labs with the launchpad and if you import the corresponding debug file in to the expressions window, could you confirm that you see a fault in the system? Does the timing have an influence if you comment out the following function:

stringINV_Fault_Read(); //Function to read faults

Please let me know if this helps.

Thanks & best regards,

Veda

0 ABDUL JAVED 4 months ago in reply to Vedatroyee Ghosh

Prodigy 40 points

1. yes running from flash.

2. LAB 10

3.no changes

4. by comment this function stringINV_Fault_Read() execution time less but still is high

0 Vedatroyee Ghosh 4 months ago in reply to ABDUL JAVED

TI__Intellectual 855 points

Hi Abdul,

Thanks for the information. Can you compare the Lab 1 also if the execution time is the same or not.

You can follow this thread in that case: (+) TIDA-010938: Lab 1 PWM Issues (Only Boost1/2 PWMs work) - Simulation, hardware & system design tools forum - Simulation, hardware & system design tools - TI E2E support forums.

Furthermore, as I mentioned the lab 1 is designed to be compatible with both launchpad and the hardware. Rest of the labs are designed to run with the hardware itself since multiple ADCs, faults, loops are running.

Thanks & best regards.

Veda