TMS320F28379D: EMUSTOP source

Hung Kai Woo1

Intellectual 825 points

Part Number: TMS320F28379D

Tool/software:

I would like to know that when EMUSTOP generated? It will be generated as MCU CPU halted?

9 months ago

0 Ozino Odharo 9 months ago

TI__Mastermind 21396 points

Hi Hung,

Please take a look at this E2E post:

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/618710/tms320f28069-emustop-source-and-function

You can also take a look at the TRM for more information.

Regards,

Ozino

0 Hung Kai Woo1 9 months ago in reply to Ozino Odharo

Intellectual 825 points

Hi Ozino

I had read the link provided by you. However, the message is not very clear to explain when EMUSTOP signal will be generated.

In TRM, There is not any explanation for EMUSTOP signal. If you don't mind, please share which section explain it.

0 Ozino Odharo 9 months ago in reply to Hung Kai Woo1

TI__Mastermind 21396 points

Hi Hung Kai,

"EMUSTOP" refers to a signal from the CPU that halts the CPU during debugging. This signal can be used in conjunction with the trip zone submodule of the ePWM to control PWM output behavior when the CPU is halted.

This E2E post provides more information: EMUSTOP Use Cases

You can see section 15.9 Trip-Zone (TZ) Submodule under the EPWM module to see how it used.

Regards,

Ozino

0 Hung Kai Woo1 9 months ago in reply to Ozino Odharo

Intellectual 825 points

Hi Ozino

1. TRM 15.9 just shows EMUSHOP trip EPWM only, no any explanation to explain EMUSTOP triggering condition

2.In your previous message, "EMUSTOP" refers to a signal from the CPU that halts the CPU during debugging.". It is my concern. EMUSTOP is generated during CCS debugging is stop. Is it very confused. I can concern that what happen in real case as CPU halted.

0 Ozino Odharo 9 months ago in reply to Hung Kai Woo1

TI__Mastermind 21396 points

Let me loop in the EPWM experts to provide more explanation on this function.

0 Ryan Ma 9 months ago in reply to Ozino Odharo

TI__Mastermind 27736 points

Hi Hung,

EMUSTOP is just an emulation stop via software asm("EMUSTOP0").

Only is applicable when a debugger is connected.

Best,

Ryan Ma

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28379D: EMUSTOP source