These days to get from a teacher there a code, let me look at commissioning, start .sof can not generate a new file after the code is compiled, the code I first Central Plains and some **. Sof file out output_file under Quartus Engineering folder, and then compile, found or can not generate a **. sof file, and then I deleted, db and incremental_db files in the folder and then recompile the Quartus project will generate ** time_limited.sof file.
Why would generate this document? This is because the project before I used the IP core need to pay, but my Quartus II 15.1 and no crack corresponding IP core, which led to the generation of sof file is ** time_limited.sof file.
How to crack the IP core, I introduced a few key points:
(1) prohibit Quartus first with a firewall to access the network;
(2) Open the Quartus menu bar -> Tools -> options -> Internet Connectivity, interface as follows
All the boxes are not checked, click ok, after which the two steps;
（3）
FEATURE 6AF7_ 0012 alterad 2035.12 Permanent uncounted E75BE809707E \
the VENDOR_STRING = "iiiiiiiihdLkhIIIIIIIIUPDuiaaaaaaaa11X38DDDDDDDDpjz5cddddddddtmGzGJJJJJJJJbqIh0uuuuuuuugYYWiVVVVVVVVbp0FVHHHHHHHHBUEakffffffffD2FFRkkkkkkkkWL $ 84" \
HOSTID = 64d954647ad4 TS_OK the SIGN = "1E27 C980 33CD 38BC 5532 368B \
116D C1F8 34e0 5436 99A0 5A2E 1C8C 8DD0 C9C6 011B A5A9 932B \
08DE C5ED 9E62 2868 5A32 6397 D9B8 5C3A B8E8 4E4F CEC7 C836 "
will be above these characters to paste in your license.dat, in the last paragraph, 6AF7_0012 cracked FIR IP core, how to crack the other IP cores I will be back on the red color of the font you use the computer's MAC address to replace, and then loaded into your Quartus crack there.
Time is limited, the other I not described in detail, you want to break the targeted IP cores: https://www.cnblogs.com/lsjjob/p/5126527.html