CCS/CC1310: The watchdog cannot be used more than once in the sensor program

Shaolin Zhang

Part Number: CC1310

Tool/software: Code Composer Studio

Hi, Ti engineers

I would like to ask a question, in an application, the watchdog can only be used once? I want to use the watchdog in the sensor program many times. When my program is awakened, I want to turn on the watchdog. When my program needs to sleep, I want to turn off the watchdog. This way, my program won't get stuck in some places after being awakened. However, the test result is not like this, my watchdog can only open and close once. When I go to open for the second time, my API will return an error. And the program will reset automatically later.

over 4 years ago

0 Marie H over 4 years ago

TI__Guru* 82341 points

Hi,

I don't understand you question and it sounds like you might have misunderstood the watchdog.

When your device goes to sleep, the watchdog will run off the sleep clock. This means the watchdog will wait longer to wake up the device and kick/pet the watchdog.

0 Shaolin Zhang over 4 years ago in reply to Marie H

Intellectual 800 points

I know what you mean. You mean when the sensor goes to sleep, the watchdog doesn't operate the timer. When the sensor wakes up from sleep, the watchdog continues to time. In fact, during sleep, the watchdog will not change. So my program only needs to open the watchdog once. Is that right?

0 Marie H over 4 years ago in reply to Shaolin Zhang

TI__Guru* 82341 points

Hi,

More or less. The watchdog is still running, however it's running on a slow clock source so it will take longer for it to time out.

Sub-1 GHz

Sub-1 GHz forum

CCS/CC1310: The watchdog cannot be used more than once in the sensor program