Maxim-integrated 71M6533-DB Manual do Utilizador descarregar pdf (Página 17)

71M6533-DB Demo Board User’s Manual

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Commands controlling the Auto-Calibration Function:

AUTO-CALIBRATION

CONTROL

Comment

Description:

Allows the user to initiate auto-calibration and to store calibration values.

Usage:

CL [option]

Command

combinations:

CLB

Begin auto-calibration. Prior to auto-calibration, the calibration

coefficients are automatically restored from flash memory.

CLS

Save calibration coefficients to EEPROM starting at address

0x0004

CLC

Use machine-readable calibration protocol

CLR

Restore calibration coefficients from EEPROM

CLD

Restore coefficients from flash memory

Example:

CLB

Starts auto-calibration and saves data automatically.

Before starting the auto-calibration process, target values for voltage, duration and current must be entered in

MPU RAM (see section 1.9.5) and the target voltage and current must be applied constantly during calibration.

Calibration factors can be saved to EEPROM using the CLS command.

Commands controlling the Pulse Counter Function

PULSE-COUNT CONTROL

Comment

Description:

Allows the user to control the pulse count functions.

Usage:

CP [option]

Command

combinations:

CPA

Start pulse counting for time period defined with the CPD

command. Pulse counts will display with commands M15.2,

M16.2

CPC

Clear the absolute pulse count displays (shown with

commands M15.1, M16.1)

CPDn

Set time window for pulse counters to n seconds, n is inter-

preted as a decimal number.

Example:

CPD60

Set time window to 60 seconds.

Pulse counts accumulated over a time window defined by the CPD command will be displayed by M14 after the

defined time has expired.

M14 will display the absolute pulse count for the W and VAR outputs. These displays are reset to zero with the

CPC command (or the XRAM write )1=2).

Commands for Identification and Information:

INFORMATION MESSAGES

Comment

Description:

Allows user to read information messages.

Usage:

Displays complete version information

The I command is mainly used to identify the revisions of Demo Code and the contained CE code.

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