How to set a timing requirement in the XTA

• version

  1.1.1

• scope

  Example.

  This code is provided as example code for a user to base their code on.

• description

  How to set a timing requirement in the XTA

• boards

  Unless otherwise specified, this example runs on the SliceKIT Core Board, but can easily be run on any XMOS device by using a different XN file.

Compile some code, for example:

int f() {
  return 0;
}

int main() {
  return f();
}

First, load the executable into the XTA, then time the function ‘f’. This will create a route as shown in the Routes view in the left hand panel. The top pane of the Routes view allows a route to be selected, whereas the bottom pane displays the timing for the current selection.

Right-click on the route and select ‘Set timing requirement’ Once supplied, the pass/fail status of the route will be displayed in this routes icon.

To set a timing requirement using the command line XTA, or from an XTA script/embedded source command, the following can be used:

set required 0 10.0 us

This will set a timing requirement of 10 microseconds on the route with an id of 0.