Avalon debug D signal short circuit board

Avalon debug D signal shorting board

When the Avalon single board is tested, the test fixture reports 0 or the number is incomplete. The Avalon debug D signal short circuit board can quickly locate the faulty chip, regardless of whether the C signal and the CK signal are normal.

Avalon models supported:

Avalon A10 series

Avalon A11 series

Avalon A12 Series

Connection method:

1. Negative pole of the short-circuit lead: connect the negative pole where the chip signal needs to be short-circuited

2. Positive pole of the short-circuit lead: connect the test point of the D signal where the chip needs to be short-circuited

3. Connect the test fixture with the ribbon cable

4. Connect hash board with the ribbon cable

5. Short-circuit clip interface

6. Toggle switch

How to use the Avalon D signal short-circuit board?

1. Avalon single board test shows: asic count: 0

First connect the D signal shorting board to the Avalon Hash board correctly, then press the switch, and the shorting clip randomly shorts the D signal from the D signal transmission direction to locate the faulty chip.

2. Avalon single board test shows: missing chip

As shown in the figure:

Short-circuit the D signal output by the A16 chip, and the test fixture displays asic count: 10. It should be noted that the correct number of chips is 16-6=10, because there are no chips in the first 6 A1-A6 positions. At this time, the number reported in the log is the same as the number of chips before the short-circuit signal, which means that the first 10 chips are normal. Therefore, we need to continue to short-circuit and check until we find the chip without D signal, so as to locate the faulty chip.