Hex data conversion question.

Wookie

Forum,

First off, thanks to everyone whom has helped me in the past around here. This forum has been invaluable.

My question revolves around hex data strings. I am receiving 64 bit identity data from several 1-wire temp devices. I would like to match these to constants I have defined at the top of my program. I can display the serial number by using "debug.hex(long [noparse][[/noparse]addr] ,8" and see the hex char's "8F917A28", but when I try to match this to the same ID defined in my constants section "$8F917A28", by using the == function, I don't have a successful match. How do I convert this data so I can compare it to a constant so I can use an if, else routine to make a decision in the software? I would publish my code, but I am away from my work machine.

Thanks for your help!

Luis Digital

To compare two strings in Spin use "StrComp (@ str1, @ str2)"

Propeller Manual, Pag. 308

SamMishal

Wookie,

In the Con section you cannot define strings.....

So you must have done

Con
  vvv = $8F917A28
 

NOT....

Con 
   vvv = "$8F917A28"   ''''this will NOT compile

But if you post your code ...either as an attached file or if it is short use the # button in the posting editor...we can see what is going
wrong and we can suggest a better answer....

if you have a pointer to the value then

if long[noparse][[/noparse]adr] == vvv·· ...... should work

but code will make it easier to help



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Samuel

www.RobotBASIC.com


Post Edited (SamMishal) : 1/8/2010 11:19:49 AM GMT

Cluso99

It would be simpler to compare longs (32 bits), so 2 longs for 64 bits. Do the upper one first and only if a == b you have to compare the lower one. Strings only complicate this issue.

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Wookie

SamMishal said...
Wookie,


In the Con section you cannot define strings.....



So you must have done

Con 

  vvv = $8F917A28
 

NOT....

Con  

   vvv = "$8F917A28"   ''''this will NOT compile

But if you post your code ...either as an attached file or if it is short use the # button in the posting editor...we can see what is going
wrong and we can suggest a better answer....

if you have a pointer to the value then

if long[noparse][[/noparse]adr] == vvv ...... should work

but code will make it easier to help

Sam,

Thank you very much for your reply, using "long[noparse][[/noparse]adr] == vvv" totally solved my problem. I figured it was just an issue of me not knowing the proper syntax in Spin to get the job done.

The "quotes" issue you commented on was just me wrapping my variable names in quotes for clarity. I know for next time this may be confusing,

Anyway, I owe you all a beer for your help! Thanks again!!