DTM (direct test mode) connect fail in ncs v2.2.0

[Felix Shih]

HI,

I build project direct_test_mode and empty_app_core and connect to PC softwarre DTM v2.

If build from ncs v1.9.1, it connect ok to show standby. but if build from ncs v2.2.0, DTM show NG.

Can you help me to verify it? something wrong?

[Håkon Alseth]

Hi,

 

Try expanding the time to 3 slots when using 2 us AoD slots.

It should then switch between bitwise 00/01/10/11 states.

Felix Shih said:

In 1us condition, it repeats (high, low) -> (low, high) -> (low, low) pattern, it lacks (high, high) combination, the waveform is correct?

I see now that this was lacking in my former test as well.

As you mention, it lacks the '11' combination. This will also be impacted if you extend the "Time(8us unit)" option.

 

 

Kind regards,

Håkon