Bit conversion

[mister_e]

why not 30/5 ?

OR (or i'm right) 3//5?

'DEFINE CCP1_REG PORTC ‘ Hpwm 1 pin port, RIGHT
'DEFINE CCP1_BIT 2 ‘ Hpwm 1 pin bit
'DEFINE CCP2_REG PORTC ‘ Hpwm 2 pin port, LEFT
'DEFINE CCP2_BIT 1 ‘ Hpwm 2 pin bit

There's a Huge difference between a apostroph ' and the other thing ‘

[sayzer]

Floating point is not supported by PBP lerameur. Thus you can not use parenthesis; still zero.

There are still ways to go around it though, take mister_e's example.

Multiplying by 10 could work but
if the difference is too big then need to multiply by 100.
and then if the difference is very big, word size variable may be, then multiply by 1000 shall work.

Ex:
Right = 240 and Left = 235;
then Temp=5.
Now, 5/240 or 50/240 will not work.
You will need to multiply by 100 and have 500/240.

Thus you need to multiply temp by 10 or 100 or 1000 based on your values.



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[lerameur]

Argg

''''''

thanks
Mister_e

[lerameur]

PBP do not take signed intergers

[HenrikOlsson]

Lerameur,

Multiplications with negative numbers works but if you need division you need to do a little "manual" work:

Sign VAR Word       'This will hold the sign of our value.
Left VAR Word
Right VAR Word
Temp VAR Word

Left = 100
Right = 200

Temp = Left - Right     'Temp is now -100 (or 65436)

If Temp.15 = 1 then    'Highest bit set means value is negative
   Sign = -1
Else
   Sign = 1
Endif

'We cant divide a negative number so we have to use the ABS operator.
Temp = ABS(Temp) / 2    'Temp is now 50 (positve)

Temp = Temp * Sign       'Re-apply sign, Temp is now -50 (or 65486)

/Henrik Olsson.

[sayzer]

hi Henrik,

I am not sure how lerameur will implement this information into his problem.


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[HenrikOlsson]

Hi Sayzer,
He said PBP don't 'take' signed integers and I showed him a way to get around it. I guess I didn't understand the problem, still don't then....

Sorry if I made more confusing.

/Henrik Olsson.