LAUNCHXL-F28379D: Data Transfer using Dual CPU without Interrupts

Hasan

Is there a way to implement data transfer between 2 CPUs without using Interrupts? I went through the example files. IPC utility drivers don't need any interrupt but its just flags and acknowledgments between 2 CPUs. IPC Lite drivers and IPC API drivers use an Interrupt Handler. The reason i want to move to an implementation without using Interrupts is to reduce the overhead of the communication between 2 CPUs. Please guide

Thanks

over 5 years ago

0 Pierre Bouchet1 over 5 years ago

Expert 2585 points

Hi Hasan,

Using the DMA peripheral you can schedule transfers between predetermined memory adresses, choosing triggers among many different sources (see the description of DMACHSRCSEL1 and DMACHSRCSEL2 in the TRM). Furthermore the DMA has access to the shared RAM blocks between CPU1 and CPU2.

Regards,

Pierre

0 Hasan over 5 years ago in reply to Pierre Bouchet1

Intellectual 405 points

Thanks Pierre for prompt response.

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LAUNCHXL-F28379D: Data Transfer using Dual CPU without Interrupts