DUT 11 Test Log

[GeorgesOatesLarsen]

Device powers normally when connected to programming interface;

Serial communications are successful. Programming, and especially auto-reset circuit are also successful.

Device powers normally on 12V supplied to VRAW, drawing 0.08A, which is within the expected range. SYSPOW shows 8.4V,8.1V,8.4V,0V, which is nominal.

Device powers normally on 7.4V supplied to VBAT, drawing 0.2A, which is within the expected range. SYSPOW shows 7.4V, 0V sequence, as expected.

When connected to both engine power and undercharged batteries, we do indeed see the expected ~0.4A total current draw from engine, as well as both CHGOK and ACOK at zero. This indicates charge circuitry health.

Performing full power test with test sequence shows alternating 0.4A and 3.4A current (indicating enabling and disabling of main engine power, while maintaining the ~0.4A charging current. The 3.4A current is within expected parameters. Serial output is as follows:

CHGOK: 0, ACOK: 0
TUE: Yes, TUB: Yes
UE: Yes, UB: No

CHGOK: 0, ACOK: 0
TUE: No, TUB: No
UE: No, UB: No

CHGOK: 0, ACOK: 0
TUE: Yes, TUB: No
UE: Yes, UB: No

CHGOK: 0, ACOK: 0
TUE: No, TUB: Yes
UE: No, UB: Yes
I am alive!

Which indicates complete power system health.

Resistive load is seeing voltage sequence 8.2V, 0V, 8.2V, 7.4V, indicating successful selection between available power sources, as well as only 0.2VDROP to load.

DUT11 Passed all tests!