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8.4.5. Battery Temperature AD Calibration
1. Supply the TBAT = 2.0v by PS-2.
2. Check the tbat = 2.0 V value
If the value is outside the range -20000 to -900, then the unit has failed.
3. Enter the calibrated tvat = 2.0 V value to the Excel sheet.
4. Change the power supply PS-2 voltage from 2.0 V to 0.5 V.
5. Check the Tbat = 0.5 V value.
If the value is outside the range 5000 to 12000, then the unit has failed.
6. Enter the calibrated Tbat = 0.5 V value into the Excel sheet. VBAT/TBAT value will be used to automatically
calculate the VBAT_GAIN/OFFSET and TBAT_GAIN/OFFSET. It will then be stored to the eep file of the BATT
format Excel sheet.
7. Convert the Excel sheet of EEP data to TXT(text) format.
File -> Save As -> Text(Tab delimited) -> Save
8. Rename the text file from the original filename and then save to PC.
Input the calibrated VBAT & TBAT value
Содержание EB-X400
Страница 86: ...12 1 12 LAYOUT DIAGRAMS 12 1 Main Board U2001 ...
Страница 87: ...12 2 ...
Страница 88: ...12 2 Upper Face PCB 12 3 Green Black Black White ...
Страница 89: ...12 3 Hinge PCB 12 4 ...
Страница 90: ...12 4 SIM PCB 12 5 ...