Changes for page 2 Script

Last modified by Devin Chen on 2025/06/06 14:03

From version 46.1
edited by Hunter
on 2023/03/30 16:36
Change comment: There is no comment for this version
To version 49.1
edited by Hunter
on 2023/05/06 10:09
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -449,7 +449,7 @@
449 449  
450 450  == **1.9 High-Low Byte Switch** ==
451 451  
452 -The following example is converting the floating number from order 1234 to order 3412. About which high-low word order corresponding to which value, please refer to the [[Address operation table>>doc:V-BOX.V-Net.Manual.04 Lua Script.01 Lua Functions.WebHome||anchor="H2Addressoperation"]].
452 +The following example is converting the floating number from order 1234 to order 3412, and formating output the number with 2 decimal point. About which high-low word order corresponding to which value, please refer to the [[Address Operation Table>>doc:V-BOX.V-Net.Manual.04 Lua Script.01 Lua Functions.WebHome||anchor="H2Addressoperation"]].
453 453  
454 454  {{code language="lua"}}
455 455  function highLowByteSwitch(floatNumber)
... ... @@ -461,6 +461,23 @@
461 461  end
462 462  {{/code}}
463 463  
464 +== **1.10 Read 64bits Unsigned Value** ==
465 +
466 +In our built-in function library doesn't have the function for reading 64-bit unsigned format value, so the following function is for solve this. But if the number is greater 2^53, the precision will be lost. So the final result will be a little bit different from the original value.
467 +
468 +{{code language="lua"}}
469 +function addr_getquatra(address)
470 + local highAddress = addr_newnoaddr(address,2)
471 + local low32 = addr_getdword(address)
472 + local high32 = addr_getdword(highAddress)
473 + --print("the low number is "..low32)
474 + --print("the high number is "..high32)
475 + local formatVal = string.format("%64.0f",2^32*high32+low32)
476 + print("the format value is ".. formatVal)
477 + return formatVal
478 +end
479 +{{/code}}
480 +
464 464  = **2 V-Box connect with third part server** =
465 465  
466 466  V-Box have two mode.One is for V-Net,User need to use WECON server to store data.We call this V-NET platform.