At 07:45 PM 8/3/02 +0100, you wrote:
>I am using an F877 to produce a 10 bit A/D reading.  This is combined into a
>single variable.  This is then passed to a binary to bcd routine which gives
>me a single variable xxxx (i.e. 1023, 0963, 0053, 0007).  I now want to sent
>this to the terminal in the following format x.xxx (i.e. 1.023, 0.963,
>0.053, 0.007). The serial comms is OK but I am not sure which is the best
>method method to produce this output.
>
>Any suggestions please?

So you have printf directed to the serial port?

Best to avoid floating point numbers, they will probably add a lot of
space to your program. How about this (untested)

   unsigned int x;               // holds the ADC value from 0..1023
   unsigned char y;              // scratch variable for printing

   y = x/1000;                   //  0 <= x <= 65535
   printf("%d.%3.3d", y, x-(y*1000));

Note that this compiler does not recognize the "0n" width specifier.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
9/11 United we Stand

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