Knowledge Base Article
The most likely cause is that you are attempting to program with a NEI file instead of an NFI file. The memory structure of NEI files is different than the NFI files, making them incompatible with the Universal Device Programmers. In order to convert from NEI to NFI you must use the NEI32NFI.exe executable available from Echelon as part of their latest development software or Service Pack. Refer to the "Using the CY7C53120Ex Neuron Chip" for more details about converting from the NEI format to NFI.