Using The Board; How To Exercise Diagnostic Functionality; Arming Interface; Squibs - STMicroelectronics MB467 User Manual

UM0178
3

Using the board

3.1

How to exercise diagnostic functionality

3.1.1

Arming interface

Arming communication between micro and ASIC can be exercised by interrupting clock signal
of the specific SPI. This can be done opening the jumper J20.
3.1.2

Squibs

This board support both real squibs or simulated loads. Real squib can be connected to
TP1,TP2, TP7 plus the relative grounds J13, J16-J19. Loads can be simulated by closing
jumpers J1-J4, J9-J12, J52-J53 and J56-J57.
3.1.3

Deployment drivers

The whole logic of the two ASIC can be exercised without firing the squib by keeping low the
DEPEN signal of the relative ASIC. This can be done by opening the jumper J21 for L9658 or
jumper J15 for L9654.
3.1.4

Satellites communications

Satellite and deployment communication between micro and ASIC can be exercised by
interrupting clock signal of the specific SPI. This can be done opening the jumper J14.
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