Converting decimal to BCD

RacerX

I have a circuit set up with a BS2 driving a 74HC595.· The 595 is connected to two 74LS47 BCD to decimal converters each driving a seven segment LED.
I want to take a decimal number (counter) which can range from 0-99 and put it on the LEDs.
How would be the best way to get my 8 bits properly arranged into 2 BCD friendly nibbles to shift out to the 595?

·

Chris Savage

Here are two routines I use for converting BCD to Decimal and Decimal to BCD.

[size=2][code]
BCD_Decimal:
  counter = (counter.NIB1 * 10) + counter.NIB0
  RETURN
                                ' Convert BCD To Decimal
Decimal_BCD:
  counter = (counter / 10 << 4) + (counter // 10)
  RETURN 

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Chris Savage
Parallax Tech Support
csavage@parallax.com