API CAN / RS232
Entwicklungshandbuch / Developer Manual PikoEval
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Version 8
Definition of FrameType (FT)
0
WaitFrame
No data transmission in progress
1
Transmission of Filename:
“Mass Memory Data”
“Card Data”
2
Transmission of Data:
“Mass Memory Data”
“Card Data”
3
Transmission of Data:
“Tachograph Data”
Definition of FirstFrame
FiF
Is set to 1
LaF
Is set to 0
SN
Starts always with 0
Definition of ConsecutiveFrame (ConFrame)
FiF
Is set to 0
LaF
Is set to 0
SN
Is incremented by one and cut to 4 bit
Definition of LastFrame
FiF
Is set to 0
LaF
Is set to 1
SN
Is incremented by one and cut to 4 bit
A last frame contains 0 up to 6 data byte.
Not used bytes are filled with FF
Cnt
Data byte #8 contains the number of transmitted bytes.
Definition of SequenceNumber (SN)
0-F
SequenceNumber (SN)
The SequenceNumber (SN) shall be encoded in the lower nibble bits of byte #1. The SN shall be set
to a value within the range of zero (0) to fifteen (15).
