TMS320F280039C: Can CLB output be connected to EPWM5-8 internally

Wayne Huang

Genius 16505 points

Part Number: TMS320F280039C

Tool/software:

Hi champs,

I am asking this for our customer.

From TRM,

Table 32-4. CLB Output Signal Multiplexer Table

It appears CLB output can only be connected to EPWM1-4.

But there are EPWM5-8.

Can CLB output be connected to EPWM 5-8 internally？

2 months ago

+1 Luke Jones 2 months ago

TI__Mastermind 27960 points

No, but it is possible to route CLB outputs to GPIOs that would have otherwise been used by EPWM5-8 outputs. You can use CLB Output XBAR or Output XBAR to connect CLB outputs to GPIOs.

--Luke

0 Wayne Huang 2 months ago in reply to Luke Jones

TI__Genius 16505 points

Hi Luke,

If they use CLB Output XBAR or Output XBAR, this will always cost them a GPIO.

Is it right?

+1 Luke Jones 2 months ago in reply to Wayne Huang

TI__Mastermind 27960 points

Not necessarily, since the GPIO being used by the CLB would've originally been used by EPWM. It is no longer necessary to allocate a GPIO to EPWM in this case, so there is no additional GPIO usage.

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TMS320F280039C: Can CLB output be connected to EPWM5-8 internally