Article Details

ID: 2696
Case Type: faq
Category: Device Programming
Related To: ispVM System
Family: MachXO2

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Deployment Tool: User MCS file translated from JED file doesn't match with the JED file we read back from the device. Is it supposed to match?

JED file should match users mirrored(enable Byte Wide Bit Mirroring) MCS file( the Intel Hex File Format mostly used by EPROM data transfer). All the bytes before preamble(FFFFBDB3 in JED file and FFFFBDCD in the MCS file) are dummy comments bytes. The dummy comments bytes portion doesn't have to match between JED file and MCS file, but after preamble the JED file and MCS file (mirrored) should match.