Address from HEX file, calculating the checksum.

[Aquaphor-123]

I noticed that verification does not pass in the process of the checking microcontroller in the Microchip Studio, if microcontroller was programmed in Arduino-TPI-Programmer. Added checksum calculation.

After Arduino-TPI-Programmer:

+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
4000: 0A C0 18 95 00 C0 2F EF 18 95 0B B7 03 FF 08 C0
4010: A8 95 07 7F 0B BF 08 ED 0C BF 00 27 01 BF 02 C0
4020: 00 FF 24 C0 00 27 0B BF 00 E0 0E BF 0F E5 0D BF
4030: 09 9A 00 E9 0F BB 03 E0 05 BF 08 ED 0C BF 00 27
.........................................................................................................................
The same after Microchip Studio:
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
4000: 0A C0 18 95 FF FF FF FF FF FF FF FF FF FF FF FF
4010: 00 C0 2F EF 18 95 0B B7 03 FF 08 C0 A8 95 07 7F
4020: 0B BF 08 ED 0C BF 00 27 01 BF 02 C0 00 FF 24 C0
4030: 00 27 0B BF 00 E0 0E BF 0F E5 0D BF 09 9A 00 E9