In this Config file you could select which Memory you want to use for save the logged CAN data (*.BTRC files)
If you select the external SD Card, you need to format the SD card with FAT32 - see manual
Code: Select all
// Drive / memory card selection for saving trace files. Default is EMMC. // Use SDC for SD card // Use EMMC for eMMC device TRC_DRIVE=EMMC
Here the link to the free available Tool that could be used for format the internal and also the SD cards with FAT 32 (the internal Windows Tools do not support this)Both memory cards must be formatted with the file system FAT 32
which allows a maximum memory size of 2 TByte. However,
32 GByte is the maximum memory size supported by Windows at
FAT 32. For working with larger SD cards, additional tools are
We have made many test with differnt SD cards (up to 1 TByte) and it works perfect - thanks to the developer Tom Thornhill
To give you an overview of the amount of data the logger can record, we have calculate an example for you (thanks to G.Bohlen for the info)
Logging CAN2.0 Data Frames, need always 28 Bytes per Message, independend of the used DLC - this is fix.
Logging a CAN2.0 RTR Frame, need always 20 Bytes per Message - also fix
When logging CAN-FD Traffic, the real count of Data Bytes will be need as storage on the SD card / internal Memory.
Data length: 0-3: 20 Bytes per Message
Data length: 4-7: 24 Bytes per Message
Data length: 8: 28 Bytes per Message
Datal ength: 12: 32 Bytes per Message
Data length: 16: 36 Bytes per Message
Data length: 20: 40 Bytes per Message
Data length: 24: 44 Bytes per Message
Data length: 32: 52 Bytes per Message
Data length: 48: 68 Bytes per Message
Data length: 64: 84 Bytes per Message
For example, with a CAN2.0 frame and a period of 10ms in 8h, this results in a number of 100*60*60*8=2,88 million messages.
These occupy approx. 2,88 million Msgs * 28 bytes/Msg = 80,64 Mbyte.
In addition approx. 1% administrative information results in approx. 81,5Mbyte.
Using a 256MB SD card could store over 9 Mio CAN Frames.
Using a 1GB SD card could store over 35 Mio CAN Frames.
Using a 32GB SD card could store over 1.100 Mio CAN Frames.
Using a 128GB SD card could store over 4.400 Mio CAN Frames.