Don't understand what the timestamp stand for in Matlab

Hardware Matlab Support
1

use XID protocol to read the RT to MATLAB,
don’t understand the Matlab support’ timestamp stand for
like 3309439 what this number stand for?

2

3309439 is the time stamp in milliseconds. This is the time since the response pad was last reset. This timer can be reset “via command e5 or via light sensor”; see description of XID Commands.

3

thank you
I found there was a mistake in the code.
stamp = typecast(int8(k(3:6)),‘int32’); it should be stamp = typecast(uint8(k(3:6)),‘uint32’);
if you use the previous code, the timestamp will be increase and decrease.

and when i write
write(device,"_e5",“char”)
the timer wasn’t reset.
do you know why? and how to reset the timer in matlab?

4

Which specific response pad model do you have?

5

lumina 2603-3G; LS-RH

6

It turns out that the product model has nothing to do with it. To reset the timer, you need to send “e5” instead of “_e5”.

Thank you for the feedback about using uint8 instead of int8; we fixed the Matlab sample code.

7

thank you
use write(device, “e5”, “char”) could reset the timer.