Hi Mark
56800E Flash Programmer is for 56800E core DSC only.
DSP56F826 has 56800 core inside which is not supported by 56800E Flash Programmer.
For DSP56F826, please use Flash_Over_Jtag instead. I just tried looking for Flash_Over_Jtag download link for you but didn't find out. If you need it, I suggest you create a private case to NXP support team:
https://community.nxp.com/docs/DOC-329745?sr=search&searchId=6a877a33-4094-4f26-af47-8a12a076a7b2&se...
Have a great day,
Jennie Zhang
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