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Subject :Decimal to Hex Formatting Issue.. 02-08-2010 16:28:54

ajbeal

Joined: 01-11-2009 11:18:04
Posts: 20
Location: Knoxville, TN USA

I am trying to have nqBasic add the hex '0x' prefix to a 2-digit decimal number, without changing the two original 2 digit number. This is for use with a SPI driven 7-segment LED decoder driver (MC14489). The decimal number must always be 2-digits and range from 00 to 99 inclusive. Example1: decimal = 00, hex = 0x00. Example2: decimal = 12, hex = 0x12. Example3: decimal = 99, hex = 0x99. This may seem strange, but the MC14489 needs this particular formatting for its data. I'm unsure how to do it, other than having 100 case statements, one for each possible decimal value between 00 and 99.

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Subject :Re:Decimal to Hex Formatting Issue.. 05-08-2010 03:41:32

ajbeal

Joined: 01-11-2009 11:18:04
Posts: 20
Location: Knoxville, TN USA

I think I can make this work if I had a Decimal-to-Hex conversion routine for nqBasic. Does anyone have one, or know the basic code for such???

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Subject :Re:Decimal to Hex Formatting Issue.. 28-12-2011 06:50:45

LouB

Joined: 27-12-2011 21:28:46
Posts: 2
Location:

For your examples above to convert decimal to hex string I did this only using 16 case lookups with a number = x that is between 0 and 255 y = int (x/16) if y > 0 firstchar = sub lookup(int(y)) x = x - 16*y else firstchar = "0" endif secondchar = sub loolup(x) sub lookup(i) case 0 return 0 1 return 1 2 return 2 ...... 10 return A 11 return B .... 15 return F end select end sub

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Subject :Re:Decimal to Hex Formatting Issue.. 04-01-2012 19:33:40

melodyfred

Joined: 05-01-2012 00:30:17
Posts: 1
Location: Windsor

The above basic code example given can work for you..!!

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