line follower

Archiver

Steve-

The NIB variable "steer" may contain a value of 0 through 15. The
operator NCD when applied to a byte variable such as "lfbits" will
return a value of 0 through 8. So, yes, a NIB is four bits, but it
can hold the result of this NCD operation.

Regards,

Another Steve

On 2 Mar 04 at 20:54, Steve wrote:

> I have a question about the line follower app.
>
> A NIB is 4 bits right? How is the 5 bits of the line follower fit in
> 4 bits?
>
> ledPos VAR Nib ' LED position in lfBits
> lfBits VAR Byte ' line follower input bits
> lastBits VAR Byte ' last LF input
> steer VAR Nib ' steering control
>
> steer = NCD lfBits ' get highest "on" bit

Archiver

I have a question about the line follower app.

A NIB is 4 bits right? How is the 5 bits of the line follower fit in
4 bits?

ledPos VAR Nib ' LED position in lfBits
lfBits VAR Byte ' line follower input bits
lastBits VAR Byte ' last LF input
steer VAR Nib ' steering control

steer = NCD lfBits ' get highest "on" bit


am I right? I have not stuffed a bunch of debug statements in to
find out, But I think I am right.

Steve

Archiver

got it....

Thank you I misunderstood the NCD command.

I thought it returned the bit value. 10000 = 16 not 5.

thanks again

Steve

--- In basicstamps@yahoogroups.com, "S Parkis" <parkiss@e...> wrote:
> Steve-
>
> The NIB variable "steer" may contain a value of 0 through 15. The
> operator NCD when applied to a byte variable such as "lfbits" will
> return a value of 0 through 8. So, yes, a NIB is four bits, but
it
> can hold the result of this NCD operation.
>
> Regards,
>
> Another Steve
>
> On 2 Mar 04 at 20:54, Steve wrote:
>
> > I have a question about the line follower app.
> >
> > A NIB is 4 bits right? How is the 5 bits of the line follower
fit in
> > 4 bits?
> >
> > ledPos VAR Nib ' LED position in lfBits
> > lfBits VAR Byte ' line follower input bits
> > lastBits VAR Byte ' last LF input
> > steer VAR Nib ' steering control
> >
> > steer = NCD lfBits ' get highest "on" bit