TMS320F28379D: Access to the CLA configuration register from within the CLA

Robin Ansias

Hi,

I'm using one CLA of the TMS320F28379D to do some SPI transfer management (filling TX and emptying RX buffers).

(NB: I cannot use the DMA, due to the fact that I use the CLA for some regulation loops that access one peripheral on the same peripheral frame).

I need to reconfigure the task trigger depending on the progress of the SPI transfer (first time the task is triggered by PWM module than following transfers are triggered by an SPI transfer interrupt).

Is the CLA capable of accessing its own configuration registers?

Thank you in advance ;)

over 7 years ago

0 Sal Pezzino over 7 years ago

TI__Mastermind 32995 points

Hi,

The CLA does not have access to these registers.

Regards,
sal

0 Vivek Singh over 7 years ago

TI__Guru** 117431 points

Robin,

Most of the configuration registers are accessible from CPU only but to confirm, I would like to know the name of configuration register you are referring here. Can you please tell.

Regards,

Vivek Singh

0 Robin Ansias over 7 years ago in reply to Vivek Singh

Prodigy 20 points

Hello,

I would mainly be interested in accessing the

MIER for enabling interrupts.

DmaClaSrcSelRegs.CLA1TASKSRCSELx to select the task trigger.

Regards,

Robin.

0 Sal Pezzino over 7 years ago in reply to Robin Ansias

TI__Mastermind 32995 points

Hi Robin,

These registers do not appear to be memory mapped to the CLA, so it should not have access to them.

You can confirm this by trying to access them, these do not appear to be memory mapped to the CLA.

Regards,
sal

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TMS320F28379D: Access to the CLA configuration register from within the CLA