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71M6533- DB Demo Board User’s Manual
1.9.2 CALIBRATION MACRO FILE
The macro file in Figure 1-6 contains a sequence of the serial interface commands. It is a simple text file and
can be created with Notepad or an equivalent ASCII editor program. The file is executed with HyperTerminal’s
Transfer->Send Text File command.
CE0
]10=+16022
]11=+16381
]12=+16019
]13=+16370
]14=+15994
]15=+16376
]18=+115
]19=+113
]1A=+109
CE1
/disable CE
/CAL_IA (gain=CAL_IA/16384)
/CAL_VA (gain=CAL_VA/16384)
/CAL_IB (gain=CAL_IB/16384)
/CAL_VB (gain=CAL_VB/16384)
/CAL_IC (gain=CAL_IC/16384)
/CAL_VC (gain=CAL_VC/16384)
/PHADJ_A (default 0)
/PHADJ_B (default 0)
/PHADJ_C (default 0)
/enable CE
Figure 1-6: Typical Calibration Macro File
It is possible to send the calibration macro file to the 71M6533H for “temporary” calibration. This will temporarily
change the CE data values. Upon power up, these values are refreshed back to the default values stored in
flash memory. Thus, until the flash memory is updated, the macro file must be loaded each time the part is
powered up.
The macro file is run by sending it with the transfer ? send text file procedure of HyperTerminal.
Use the Transfer ? Send Text File command!
1.9.3 UPDATING THE DEMO CODE (HEX FILE)
The d_merge program updates the hex file (usually named 6533_4p6b_19jan08.hex or similar) with the values
contained in the macro file. This program is executed from a DOS command line window. Executing the
d_merge program with no arguments will display the syntax description. To merge macro.txt and
old_6533_demo.hex into new_6533_demo.hex, use the command:
d_merge old_6533_demo.hex macro.txt new_6533_demo.hex
The new hex file can be written to the 71M6533 through the ICE port using the ADM51 in-circuit emulator or the
TFP2 flash programmer.
1.9.4 UPDATING CALIBRATION DATA IN FLASH OR EEPROM
It is possible to make data permanent that had been entered temporarily into the CE RAM. The transfer to flash
memory is done using the following serial interface command:
>]U
Thus, after transferring calibration data with manual serial interface commands or with a macro file, all that has
to be done is invoking the U command.
Similarly, calibration data can also stored in EEPROM using the CLS command.
After reset, calibration data is copied from the EEPROM, if present. Otherwise, calibration
data is copied from the flash memory. Writing 0xFF into the first few bytes of the EEPROM
deactivates any calibration data previously stored to the EEPROM.
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