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Test Procedure www.ti.com
Move the Channel 3 scope probe to test point TP30. Set the scope to trigger on Channel 2. Place the
EVM SLOT B MP ENABLE switch in the LO position. The SLOT B MP green STATUS LED should
illuminate. On the scope screen, verify a waveform capture was obtained similar to that shown in Figure 5 .
The Channel 2, 3 and 4 waveform parameters should be similar to those indicated above for Figure 4 . A
DVM can be used to verify the output voltage at TP11 (with respect to ground at TP12) is within 10 mV of
the 3.3-V input supply setting.
Figure 5. Output Ramp-up Waveforms – 3.3B Rail
Change the oscilloscope probe connections and amplifier settings as shown below. It may be beneficial to
move the Channel 1 and 2 trace positions for viewing a couple of 12-V waveforms in the top half of the
screen.
• Chan. 1 -- TP7: 5 V/div
• Chan. 2 -- TP10: 5 V/div
• Chan. 3 -- TP32: 100 or 200 mV/div
10 TPS2358 Dual-Slot ATCA™ AdvancedMC™ Controller Evaluation Module SLUU328 – August 2008
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