CCS/TMS320F28035: how long is a one-shot event valid?

Junjie Wu67

Part Number: TMS320F28035

Tool/software: Code Composer Studio

I've read from the UserGuide, that one-shot event must be cleared manually.

so my question is, how long is one-shot event valid? it's just valid once, or it's always valid before i clear its flag.

over 8 years ago

0 tlee over 8 years ago

TI__Guru 62975 points

Wu,

Can you clarify where this "one-shot" event is configured? Is it a CCS tool or feature? Is it a setting for a specific module?

-Tommy

0 Junjie Wu67 over 8 years ago in reply to tlee

Prodigy 90 points

Tommy,

"one-shot" is a event discribed in ePWM's Submodule "Trip Zone".
According to the UserGuide, one-shot event lead to carrying out of an action on ePWM immediately & setting a flag at the same time. And this flag must be cleared manually.
But i am not sure, if the action carrys out only once or not.

wu

0 Junjie Wu67 over 8 years ago in reply to tlee

Prodigy 90 points

Tommy,

it's a Submodule "Trip Zone"under ePWM. one-shot event is discribed in Page 64&65.

wu

0 tlee over 8 years ago in reply to Junjie Wu67

TI__Guru 62975 points

Wu,

In the case of the EPWM one-shot (OST) flag, it will stay set (forever) until it is cleared through software.

After an OST flag is cleared, it can be set when the TZ trip condition is qualified again.

-Tommy