AR# 436: XPP 5.0: Why does it always ask for the "first" device?
AR# 436
XPP 5.0: Why does it always ask for the "first" device?
描述
Keywords: XPP, 5.0
Urgency: Standard
General Description:
XPP 5.0: Why does it always ask for the "first" device?
解决方案
When programming proms with XPP, many times a design will require more than one prom to hold its configuration data. Thus, when programming more than one set of proms, there are two pieces of information that must be kept track of; which set of proms you are configuring, and which device within the present set is being configured. For example, assume you want to make three copies of a 4010 design that takes up two proms. XPP would program them in this order:
Unfortunately, XPP 5.0 seems to always prompt with "insert the FIRST device to be programmed", instead of telling you which device within the set you are programming. In the upper right corner of the screen you will see a "pattern <num> of <total>" prompt, which indicates the set number you are currently on, and thus which part of the bitstream data you are programming. In this same area is a message that says "Programmed: <num>". This tells you which device within the set you are programming. Use this information and ignore the "insert FIRST device..." message.