HP E2470A, Руководство пользователя

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To power up or power down
When powering up, the logic analyzer must be powered up first, followed by
the target system. The logic analyzer provides the power to the active
circuits on the preprocessor interface. Unpowered circuits may cause
improper operation of the target system.
When powering down, the target system should be powered down first,
followed by the logic analyzer.
To protect the preprocessor interface when not in use
•
Cover the socket assembly pins of the preprocessor interface with a
conductive foam wafer or conductive plastic pin protector.
The socket assembly pins of the preprocessor interface were covered at the
time of shipment with either a conductive foam wafer or conductive pin
protector. If this device is not damaged, it may be reused repeatedly.
•
Store the preprocessor interface in an antistatic bag or container.
Electrostatic Discharge The socket assembly pins of the preprocessor interface should be covered
with a conductive foam wafer or pin protector to protect the delicate gold
plated pins of the assembly from damage due to impact. Covering the pins
and properly storing the preprocessor interface also protects the active
circuitry on the preprocessor interface from electrostatic discharge.
To set the slide switches
The slide switches are used to inform the inverse assembler about the MCU
configuration when making state measurements. The switches perform three
functions. First, they validate a multi-function pin as an MCU signal versus a
general purpose input/output for direct use by the inverse assembler.
Second, they validate a multi-function pin as an MCU signal versus a general
purpose input/output for use in generating signals to be used by the inverse
assembler. Third, the slide switches direct the logic analyzer to capture bus
cycles generated by other bus masters and/or debug controllers. They must
be set appropriately for correct inverse assembly.
The overlay supplied with the preprocessor card labels the function of each
switch and shows the position of valid and invalid settings. You may wish to
refer to it as each switch is being discussed below.
Setting Up the Preprocessor Interface Hardware
To power up or power down
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