HWAG problem question?

DaeCheol Kang

Other Parts Discussed in Thread: HALCOGEN

I got angle value from HWAG.

But always this end point angle value( 359º ~ 0º)is not fixed.

So I want to get solution about this problem.

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Test specification

Tooth Wheel : 180

Missing Tooth : 1

Actual Tooth : 179

Input frequency : 4.5 KHz

Input pulse Duty : 50%

CPU : RM48

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picture about This Problem

0 Anthony F. Seely over 11 years ago

Hi DaeCheol,

I'm trying to understand the problem from the screenshots on the scope. I assume channel 2 is the toothed' wheel signal.

What's showing up on channel 1?

Is it possible to get the code that you're using if we need to recreate the problem here to analyze?

0 DaeCheol Kang over 11 years ago in reply to Anthony F. Seely

Thank you for your answer.

Code will be send by e-mail.

0 DaeCheol Kang over 11 years ago in reply to DaeCheol Kang

Is attach code.(Halcogen 03.08 version)

1 Channel is HET1[0] that set High and Low about Angle value.

The second picture is showing that 359º ~ 0º Angle value is empty.

We use a HWAG for fuel injection driver.

And it have to detect a crank shaft(tooth wheel) speed within 0.1 degree resolution.

CAM Shaft is equipped with RPM pick-up.

I detect a crank shaft speed using a interrupt.

I want to know that how much it affect CPU usage.

Is there any way to know the CPU usage?

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