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AT90USB Unknown device #2

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Description

@Avinitlarge

I am trying to program a AT90USB1287
(JTAG chainpos: 0 Device IDCODE = 0x4978203f Desc: AT90USB).
When Im trying to program it (xc3sprog -c matrix_creator -v -p 0 SM2.hex), I'm getting device unknown. The device IDCODE is showing as 0x4978203f and the number in the list is 0978203f, Im not sure whats going off.

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