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AT+i Programmer's Manual - SE Spezial-Electronic AG

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Nonvolatile Parameter Database<br />

33.3.19 +iCKSM — Checksum Mode<br />

Syntax: <strong>AT+i</strong>CKSM=<br />

Sets iChip‘s checksum mode. With this mode enabled,<br />

iChip calculates the checksum of data it returns to host upon<br />

receiving the <strong>AT+i</strong>SRCV command. At the same time,<br />

iChip expects the host to append checksum to the data it<br />

sends with the <strong>AT+i</strong>SSND command. iChip compares the<br />

checksum it calculates with the one calculated by the host to<br />

verify that data was not corrupted during transmission<br />

between host and iChip.<br />

Parameters: n=0 | 1<br />

Command Options:<br />

n=0 Checksum mode disabled<br />

n=1 Checksum mode enabled<br />

Default: n=0 (checksum mode disabled)<br />

Result code:<br />

I/OK If n is either ‗0‘ or ‗1‘.<br />

I/ERROR Otherwise

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