Answers Database CPLD: 9500: What are the checksums in a JEDEC file and how do I read it? Record #3579 Product Family: Hardware Product Line: 9500 Product Part: 9500 Problem Title: CPLD: 9500: What are the checksums in a JEDEC file and how do I read it? Problem Description: Urgency: Standard General Description: This solution covers the details of how to read a 9500 JEDEC programming file. Solution 1: Date Extracted: Mon Dec 08 08:43:28 1997 <-- Header ^BQF186624* <-- Number of Fuses in Device QP352* <-- Number of Package Pins QV0* <-- Maximum Number of Test Vectors F0* <-- Default Fuse State X0* <-- Default Test Condition J0 0* <-- Device ID N DEVICE XC95216-15-BG352 * <-- Comment Field N PPMAP 232 A1 * <-- Comment Field N PPMAP 209 A10 * <-- Comment Field L0000000 00000011 00000011 00000011 00000011 00000011*^M <-- Fuse List (Data) L0000040 00000011 00000011 00000011 00000011 000000*^M <-- Fuse List (Data) L0000078 000000 000000 000000 000000 000000*^M <-- Fuse List (Data) L0186588 01111111 0111111 0111111 1111111 1111111*^M <-- Fuse List (Data) C3012*^M <-- Fuse Checksum ^CF28D^M <-- '^C' ETX (ASCII 03) End Transmission                    <-- 'F28D' File Checksum ***** USERCODE is spread across several places in JEDEC file and is not visible in file. End of Record #3579 - Last Modified: 12/20/99 10:43

For the latest news, design tips, and patch information on the Xilinx design environment, check out the Technical Tips!