Manually simulate the Fletcher algorithm (Figure 10.18) to calculate the checksum of the following bytes: (2B) 16
Question:
Manually simulate the Fletcher algorithm (Figure 10.18) to calculate the checksum of the following bytes: (2B)16, (3F)16, (6A)16, and (AF)16. Also show that the result is a weighted checksum.
Figure 10.18
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Figure 10.18 Algorithm to calculate an 8-bit Fletcher checksum Notes Start L:Left 8-bit checksum R: Right 8-bit checksum D;: Next 8-bit data item R=L=0 More data? Iyes] L= (L+ R) mod 256 R= (R + D;) mod 256 Ino] 16-bit L checksum Checksum = Lx 256 +R R Stop
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