Changes for page 2 Script
Last modified by Devin Chen on 2025/06/06 14:03
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... ... @@ -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 operationtable>>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.