topic S32K344 MCAL WdgModule - Question about a Wdg_SetTriggerCondition() in S32K

S32K344 MCAL WdgModule - Question about a Wdg_SetTriggerCondition()

Rmpr — Tue, 28 May 2024 14:00:02 GMT

Hello,

I have a doubt in some of your RTDs functions. You use the function Wdg_ChannelSetTriggerCondition(timeout) to periodically service the Wdg. In the description of the function you specify that this timeout is in miliseconds. However, in the following line:

Wdg_au32Timeout[Instance] = (uint32)(Timeout * Wdg_apConfigPtr[Instance]->Wdg_u32TriggerSourceClock) + ElapsedTime;

What exactly is this calculation? Shouldn't we just equal the timeout to the Wdg_au32Timeout[Instance]?

Wdg_au32Timeout[Instance] = Timeout

Thank you!

Re: S32K344 MCAL WdgModule - Question about a Wdg_SetTriggerCondition()

VaneB — Wed, 29 May 2024 20:59:43 GMT

Hi @Rmpr

The equation provided in the code calculates the number of ticks required to have the defined timeout value ((milliseconds) considering the configured clock frequency and the elapsed time since the channel started with Gpt_StartTimer.

B.R.

VaneB

Re: S32K344 MCAL WdgModule - Question about a Wdg_SetTriggerCondition()

Rmpr — Mon, 03 Jun 2024 08:49:49 GMT

Thank you!