The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 22, 2003
Filed:
Aug. 13, 1999
Jeffrey V. Lindholm, Longmont, CO (US);
Chakravarthy K. Allamsetty, Milpitas, CA (US);
Other;
Abstract
A system and method utilize bitmaps for verifying configuration of a programmable logic device (PLD). A configuration bitstream containing configuration commands and data is converted to a configuration bitmap. The configuration bitstream is downloaded to PLD, thus programming the PLD. Readback commands and data read back from the PLD are used to generate a readback bitstream. The readback bitstream is then converted to a readback bitmap. Bits at corresponding cell locations in the readback bitmap and the configuration bitmap are compared. An error signal is output if the bits are different. In one embodiment, a mask bitmap is generated to indicate which cell locations are non-configuration memory cells and thus need not be compared.