TMS320F28377D: Synchronization of CPU1 and CPU2 timer interrupt

sagar nena

Part Number: TMS320F28377D
Other Parts Discussed in Thread: C2000WARE

My all adc feedback sensed in cpu1 and same i was using in cpu2.

CPU1interrput time and CPU2interrupt time is same..

But Both interrupt are not coming at same time Delay between Two interrupt 20us and this delay might be affect my control loop.

So is there any way to synchronize both the timer and interrupt will generate in same time an both CPU?

Please guide be if there any possibility.

over 6 years ago

0 Veena Kamath over 6 years ago

TI__Mastermind 32565 points

Hi Sagar,

Do you want to receive ADC interrupt at the same time on both the cores? I assume you have configured 2 ADCs one of each core. What riggers Start of conversion for each ADC?

Regards,
Veena

0 Veena Kamath over 6 years ago in reply to Veena Kamath

TI__Mastermind 32565 points

Hi,

Were you able to resolve the issue. If not, please respond to the previous post.

Regards,
Veena

0 sagar nena over 6 years ago in reply to Veena Kamath

Prodigy 60 points

Hi veena
Thank you for reply.

Do you want to receive ADC interrupt at the same time on both the cores?

No i want timer 0 interrupt at same time in both cores..

I assume you have configured 2 ADCs one of each core. What riggers Start of conversion for each ADC?

No all adc i configured in one core (CPU 1)..

I want to transfer results of adc from CPU1 to CPU2 by using Share ram.

So that i required timer 0 interrupt in same time in both cores..

0 Rajaravi Krishna Katta over 6 years ago in reply to sagar nena

TI__Expert 6795 points

Hi Sagar,

Use IPC synchronization to start both the CPU Timers are the same time. If the timer0 period of both CPU1 and CPU2 are same, the interrupt will come at the same time.

Please refer <C2000Ware>\device_support\f2837xd\examples\dual\ipc_gpio_toggle\

Please let us know if you need anything else.

Thanks,
Katta

0 sagar nena over 6 years ago in reply to Rajaravi Krishna Katta

Prodigy 60 points

Thank you katta,

I will try and let you know..

Regards
Sagar

0 sagar nena over 6 years ago in reply to Rajaravi Krishna Katta

Prodigy 60 points

Dear katta

After using ipc bit both timers are synchronize with each other...

Thanks & Regards
Sagar Nena

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28377D: Synchronization of CPU1 and CPU2 timer interrupt