13.31.15 Specifying I/O States During Programming

In Libero IDE, the I/O states can be set prior to programming, and held at the set values during programming. In Libero IDE, this feature is only available once layout is completed.

1. From the Designer GUI, click the Modify I/O States During Programming button. The Programming File Generator window appears.
2. Click the Specify I/O States During Programming button to display the Specify I/O States During Programming dialog box.
3. Sort the pins as desired by clicking any of the column headers to sort the entries by that header. Select the I/Os you wish to modify (as shown in the figure below).
4. Set the I/O Output state. You can set Basic I/O settings if you want to use the default I/O settings for your pins, or use Custom I/O settings to customize the settings for each pin. See the Specifying I/O States During Programming - I/O States and BSR Details help topic for more information on setting your I/O state and the corresponding pin values. Basic I/O state settings are:
   • 1 – I/O is set to drive out logic High
   • 0 – I/O is set to drive out logic Low
   • Last Known State: I/O is set to the last value that was driven out prior to entering the programming mode, and then held at that value during programming
   • Z - Tri-State: I/O is tristated

   

5. Click OK to return to the FlashPoint – Programming File Generator window.