AN3975

Tests

Doc ID 022170 Rev 1

21/26

supplied with the ST7590 demonstration board. The traffic on the GUI can be observed.

Traffic during the test on Figure 16 is shown in Figure 17.

Figure 17.

Log of packets - 320-byte data transfer

Packet length in both directions must be 320 in order to pass the test

Column Type: Data means data packets

Column Len: Means length of the data message

Column DO: DW that means data sent from base node to service node (down direction)

For DW packets: Len = 13 + 307 = 320 bytes.

Column DO: DW that means data sent from base node to service node (up direction)

For UP packets: Len = 13 + 285 + 22 = 320 bytes.