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Checksum calculation example

Alexey Kuz

Can you tell me, what does "unsigned char CODE *" mean in

checksum = calc_checksum ((unsigned char code *) 0, 0x4000);


from "csumex" Keil example.

My c166 compiler can't complile it.
What shall I do?

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  • 0 in reply to Andy Neil

    HI Andy !

    I just need to check if programm codes in flash was not changed. I have found 2 examples - with all flash checksum (with trash) and only code section checksum (more compact). So I just ask what should I prefer. I have no precise Requirement.

    I have no experience in checksum calculation so I ask your opinion. My be someon can post ITS working example for 166. It will be nice :)

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  • 0 in reply to Andy Neil

    HI Andy !

    I just need to check if programm codes in flash was not changed. I have found 2 examples - with all flash checksum (with trash) and only code section checksum (more compact). So I just ask what should I prefer. I have no precise Requirement.

    I have no experience in checksum calculation so I ask your opinion. My be someon can post ITS working example for 166. It will be nice :)

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