TMS320F280025C: Overwriting GPIO pin with CMPSS output

Hi Jayant,

I believe there might be something that can be done using either CMPSS or CLB to trigger a GPIO based on CMPSS trip. Let me contact the CMPSS owner first.

Regards,

Vince

Hello Jayant,

Thank you for your patience.

I'll get back to you as soon as I have more information.

Regards,

Hadi

Hi Jayant,

As shown in Figure16.1 of Technical Reference Manual, CTRIPxOUTx(x= "H" or "L") signals are connected to the Output X-BAR for external signaling. So, you can configure the output of the CMPSS module in a way that the GPIO would be governed by the output of the CMPSS. See the General-Purpose Input/Output (GPIO) chapter for more details on the Output X-BAR mux configuration.

Regards,

Hadi

Hi Hadi,

Thanks for your reply. But my concern is that, can this function be used to overwrite the command coming to GPIO pin from software?

Hi Jayant,

Thanks for your patience.

From what I understood, you want the OR logic of CTRIPxOUT (coming from CMPSS) and SW command. You need to route this OR-output signal using CLB-XBAR to the GPIO. 

Can you tell me what is the source of SW command coming to GPIO?

Regards,

Hadi

The SW command is a kind of fault detection signal followed by some delay time.

Thanks for reply. Is this signal related to any peripheral? I want to see if it's associated with other peripherals, then we can find out if CLB-XBAR has access to the source of the signal.

Regards,

Hadi