Multipacket-Strings¶

There should be the posssibillity to write the complete SPI-Flash even if it takes forever.
Not every slave needs to be able to send super big blocks. But every slave should be able to
send e.g. descriptions.
There can not be multiple transfers at the same time from one node because there is no identification.

Size	Type
0x4	Package number (0: Data contains package count)
0x4	Data

Header¶

Size	Type
0x4	Total size
0x4	Type (1=SDCard)
0x4	Target node ID
0x4	CRC32 of data

Example: CANRec¶

PC requests an complete dump from single Node. Node will just stream it out.

V2¶

Size	Decription	Examples
1	Packet type	Standard TDT packet
1	Sub-Id;	Futher index; Sub-Sensor or more specifi kind of thing to be set
1	Data type	Int, Float, Time, Date, Percent, Promil, Multipacket-String
1	Unit	Hz, °C, Time, Date, PWM, CAN-ID, Name, Description, Room
4	Value	32Bit

V3¶

Size	Decription	Examples
2	Object
1	Sub-Id;	Flags, Subid
1	Unit/Type	Hz_int, °C_centi, Time, Date, PWM_milli, CAN-ID, Name, Description, Room
4	Value	32Bit

Flags¶

4 Bit multi message count
4 Bit multi message pos

Length in Bytes given via CAN?
Strings with max. 64 characters.

Multimessage package¶

There should be the possibillity to write the complete SPI-Flash even if it takes forever.
Not every slave needs to be able to send super big blocks. But every slave should be able to
send e.g. descriptions.