Alpha : Visual Tour    Developer Mode Walkthrough  

Lets click Program | Blank Check and see if our device is blank.  It is not.

NOTE: If you have just used a device programmer to program BLPro_2550.hex into (the high part of) the PIC processor's Flash program memory, you may be surprised that BLPro.exe tells you that your device is not blank: you would expect the target area of program memory to be blank at this point.

This is almost true, but the bottom 3 words of program memory at this point contain a branch to the bootloader up in high memory, so our Blank check **fails**: our device is not quite blank, and our device will need to be erased before re-programming.


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