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 Error in Hex File - Fuse (18F4550)
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6 Posts

Posted - 07/02/2009 :  11:10:57  Show Profile  Reply with Quote

I'm programming an 18F4550. If I set any configuration bits in the MPLAB assembler, I get an error when loading the hex file, such as:

Error in Hex File - Fuse

Line: 14

If I don't configure anything, then set the fuses manually in the programmer, it works. However, it's very tedious to manually configure the fuses every time I program the chip.

Has anyone run across this? I haven't had this problem with any of the 12F and 16F chips I've programmed.

Reply #1


6 Posts

Posted - 07/05/2009 :  03:40:05  Show Profile  Reply with Quote
This is a problem with the software supplied with the programmer. It won't use a single-byte entry in the hex code and it needs to be updated.

There is a workaround, in case anyone else experiences this problem.

In MPLAB, after compiling the program, select FILE, EXPORT and export the hex code. This will write the hex code without using single-byte entries and the programmer software will accept it.
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