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									checksum - Tips &amp; Tricks to better code and motor performance				            </title>
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                        <title>checksum</title>
                        <link>https://www.animatics.com/forum/tips-tricks-to-better-code-and-motor-performance/checksum/#post-993</link>
                        <pubDate>Mon, 29 Dec 2014 03:10:15 +0000</pubDate>
                        <description><![CDATA[SM3416D，Version is 4.78AE。And I used 478T in SMI。]]></description>
                        <content:encoded><![CDATA[SM3416D，Version is 4.78AE。And I used 478T in SMI。]]></content:encoded>
						                            <category domain="https://www.animatics.com/forum/tips-tricks-to-better-code-and-motor-performance/">Tips &amp; Tricks to better code and motor performance</category>                        <dc:creator>Jimmy</dc:creator>
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				                    <item>
                        <title>checksum</title>
                        <link>https://www.animatics.com/forum/tips-tricks-to-better-code-and-motor-performance/checksum/#post-991</link>
                        <pubDate>Mon, 29 Dec 2014 02:49:12 +0000</pubDate>
                        <description><![CDATA[Hi Jimmy.  Let me know the part number of your Motor (SM2315D ...or something similar) and the firmware (V4.40c ...or something similar) and I will recommend some commands and documents you ...]]></description>
                        <content:encoded><![CDATA[Hi Jimmy.  Let me know the part number of your Motor (SM2315D ...or something similar) and the firmware (V4.40c ...or something similar) and I will recommend some commands and documents you can use to get a quick start.

-Chuck]]></content:encoded>
						                            <category domain="https://www.animatics.com/forum/tips-tricks-to-better-code-and-motor-performance/">Tips &amp; Tricks to better code and motor performance</category>                        <dc:creator>csearcy</dc:creator>
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				                    <item>
                        <title>checksum</title>
                        <link>https://www.animatics.com/forum/tips-tricks-to-better-code-and-motor-performance/checksum/#post-259</link>
                        <pubDate>Sun, 28 Dec 2014 22:44:56 +0000</pubDate>
                        <description><![CDATA[hello dears，
    First of all ，I am a beginner of SmartServo。If I ask some easy questions ，please don&#039;t mind。I find a example program in user&#039;s guide。The code is as below。

SADDR1
ECHO_O...]]></description>
                        <content:encoded><![CDATA[hello dears，
    First of all ，I am a beginner of SmartServo。If I ask some easy questions ，please don't mind。I find a example program in user's guide。The code is as below。

SADDR1
ECHO_OFF
PID4
KP=100
KD=500
F
A=1600
V=4000000
MP
mm=1 //Initialize Minus Flag to one
ss=0 //Initialize Main Checksum
tt=0 //Initialize Command-Only Checksum
nn=0 //Initialize Input Number to Zero
yy=0 //Initialize Incoming Checksum Flag
....
....
.....
    My question is that how to find out the meaning of the variables，such as mm，ss。 Does every variable have a certain meaning？How can i know their function？Is there a diagram using to describe them？And I am also confused by Checksum。What is the algorithm of the checksum？
    If you have anything about Date Variables Memory Map， please tell me。Thanks in advance。]]></content:encoded>
						                            <category domain="https://www.animatics.com/forum/tips-tricks-to-better-code-and-motor-performance/">Tips &amp; Tricks to better code and motor performance</category>                        <dc:creator>Jimmy</dc:creator>
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