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Rev. 0
APPENDIX B: CAN BASED EVALUATION
BASIC OPERATION EXAMPLES
Current, Power, BAT (100ms)
Examples shows measurement of Current (I1), Power (P1) and battery voltage (BAT) at LTC2949’s update rate of 100ms.
***BUSMASTER Ver 3.2.2***
***PROTOCOL CAN***
***NOTE: PLEASE DO NOT EDIT THIS DOCUMENT***
***[START LOGGING SESSION]***
***HEX***
***RELATIVE MODE***
***CHANNEL 1 - PCAN-USB Driver Id 16 - 500000 bps***
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***DC2732A_CAN\DC2732A_CAN.dbf***
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***<Time><Tx/Rx><Channel><CAN ID><Type><DLC><DataBytes>***
• Send CFG2949 with flags MEAS_BAT, MEAS_I1, MEAS_P1, MEAS_ENABLE set and MEAS_PERIOD = 0
00:01:36:4389 Tx 1 0x11F s 8 00 01 00 00 45 80 00 00
• Measurement results reported every ~0.1 second (see above CAN message ID description)
00:00:00:3140 Rx 1 0x110 s 8 00 00 04 00 00 01 FF D7
00:00:00:0968 Rx 1 0x110 s 8 00 00 00 00 00 01 FF D7
00:00:00:0969 Rx 1 0x110 s 8 FF FF FE 00 00 01 FF D7
00:00:00:0977 Rx 1 0x110 s 8 FF FF FE 00 00 01 FF D7
…
• Stop measurement
00:00:00:0137 Tx 1 0x11F s 8 00 01 00 00 45 00 00 00
***END DATE AND TIME 17:4:2018 11:46:33:344***
***[STOP LOGGING SESSION]***
I1, P1, BAT (100ms), I2fast, BATFast (1ms to 2ms)
Examples shows measurement of Current (I1), Power (P1) and battery voltage (BAT) at LTC2949’s update rate of
100ms plus fast current and battery voltage measurement every 1ms to 2ms (nominal 0.8ms but here limited by host
controller speed)
***BUSMASTER Ver 3.2.2***
…
***<Time><Tx/Rx><Channel><CAN ID><Type><DLC><DataBytes>***
• Start of measurement: MEAS_BAT, MEAS_I1, MEAS_P1, CH2FAST, FCONT, P2ASV, MEAS_ENABLE, MEAS_PERIOD
= 0, FAST_MEAS_PERIOD = 1
00:00:12:8961 Tx 1 0x11F s 8 8A 01 00 00 45 80 00 01
