TMS320F28388D: Data Transfer between CPU and CM without message or interrupt.

SY Yoon

Genius 3381 points

Part Number: TMS320F28388D
Other Parts Discussed in Thread: TMDXIDDK379D, C2000WARE

Hi,

I am trying to receive ethernet data from CM and send it to CPU1 through MSGRAM_CM_TO_CPU.

Do I have to use IPC when data is transferred CM to CPU1?

I allocated buffer in the message ram.

And CM write data to MSGRAM_CM_TO_CPU and CPU1 just read buffer without interrupt or message?

Could this be a problem?

Are messages or interrupts necessary for data transfer between two cores?

0 Vivek Singh over 3 years ago

Hi,

SY Yoon said:
Do I have to use IPC when data is transferred CM to CPU1?

Yes, you need to use IPC for this.

SY Yoon said:
And CM write data to MSGRAM_CM_TO_CPU and CPU1 just read buffer without interrupt or message?

Could this be a problem?

How CPU1 will know when to read the data ?

SY Yoon said:
Are messages or interrupts necessary for data transfer between two cores?

Yes, CM need to generate an interrupt to CPU1 after data is written in MSG RAMs else how CPU1 will know when to read the data ?

Regards,

Vivek Singh

0 SY Yoon over 3 years ago in reply to Vivek Singh

Genius 3381 points

Hi,

CPU1 checks data from CM by polling in my code.

I'm reffered to C:\ti\c2000\C2000Ware_MotorControl_SDK_4_00_00_00\solutions\tmdxiddk379d\f2838x

I set the BUILDLEVEL to FCL_LEVEL8.

I couldn't find configuration for IPC in the examples.

0 Vivek Singh over 3 years ago in reply to SY Yoon

Hi,

SY Yoon said:
CPU1 checks data from CM by polling in my code.

That is fine. Polling takes unnecessary CPU MIPS but if that is not issue then it should be fine.

Regards,

Vivek Singh

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