Bits, Bytes Words and Arrays

[mackrackit]

I'm not "new" here; I just don't get into every little thing that's posted.

Data sheets and manuals are not written "by engineers for engineers"; that's nonsense. They are written for those knowledgeable in the discipline. If you have not taken the time to make yourself knowledgeable then it's on you. If you don't understand the information in the manual then get a basic book on electronics and educate yourself. There is nothing in the manual that anyone with a basic understanding of electronics wouldn't understand.

Contrary to what (it appears) many people on this forum think, electronics and microcontroller programming isn't some "plug 'n play" hobby. It requires a great deal of time to gain the knowledge to succeed. Yes, I am knowledgeable in the field. This didn't happen by accident; I've spent a great deal of time reading books, manuals and data sheets. I began with the fundamentals and worked up from there. Once you spend the time you'll begin to see that the "unusual new ideas" are neither "unusual" or "new" and are in fact rubbish from people that haven't spent the time up front to know what they are talking about.

I feel so sorry for tech support guys; I really do.

Mike Tripoli

P.S. Your little "quote" about Communism is complete crap.

OOOO!!!!!!
An attitude!!!

This forum is about helping people. Maybe you have never needed help in understanding or have never ask a question???

Yes, there are many who come here looking for a copy/paste solution. They get "weeded".
There are many who do not have the years behind them to have learned.
There are many that come from another language or discipline also. Are they to be ridiculed?

IF
you think the people truly trying to learn are beneath you
THEN
BUZZ OFF!!!!
ELSE
never mind
just
BUZZ OFF...

[Archangel]

Hi Mike,
Opinions are what makes for horse races. Everyone starts out as a newbie, and people learn at different rates. Those are Facts, added to my opinion above. You have a great day! I choose not to argue.
JS
Edit: Melanie did this forum a service with this and nearly all of her posts, I say nearly, because Nobody is ever always or never.

[vilaprinyo]

This is working in Pic Basic:

For MyVar=0 to 15
MyBit=MyWord.0(MyVar)
LCDOut $FE,1,"Bit ",#MyVar,"=",MyBit
Pause 2000
Next MyVar

But I can not get to work in Pic Basic Pro

I need to read/write some bits from/to a word variable and this method was very useful.

Any ideas?

Many thanks,

Ricard.

[HenrikOlsson]

Hi,
It works perfectly fine here. I had to add a # in the LCDOUT statementin order to have it actually display "1" or "0" but apart from that it works as I'd exect it to.

MyVAR VAR BYTE
MyWord VAR WORD
MyBIT VAR BIT
 
MyWORD = %1010101010101010
 
For MyVar = 0 to 15
  MyBit = MyWord.0(MyVar)
  LCDOut $FE, 1, "Bit " ,#MyVar, "=", #MyBit
  Pause 2000
Next MyVar

/Henrik.

[vilaprinyo]

Henrik,

Thanks for your help. I not tried exaktly this (i have no LCD)

I tried this:

MR var word: H var byte

for H=0 to 15
MR.0[H]=1 'set bit H of MR
next H

This works fine in PicBasic but when compiling in PicBasicPro this bits never are set. Other things in my code (about 8k) works perfect. I have only problems when adressing bits form words or bytes

Maybe I have a library instalation problem?

[HenrikOlsson]

Hi,
That is weird.... This code:

MR var word: H var byte
 
MR = 0
HSEROUT ["First, all zeros:",13]
HSEROUT ["MR = ", BIN16 MR,13,13]
 
MR=65535
HSEROUT ["Then, all ones:",13]
HSEROUT ["MR = ", BIN16 MR,13,13]

for H=0 to 15
    MR.0[H]=0  'reset bit H of MR
next H
HSEROUT ["Next, all zeros again:",13]
HSEROUT ["MR = ",BIN16 MR,13,13]
 
for H=0 to 15
  MR.0[H]=1 'set bit H of MR
next H
HSEROUT ["And finally, all ones:",13]
HSEROUT ["MR = ", BIN16 MR,13,13]
 
Pause 10
END

Produces the following result on the serial terminal:

First, all zeros:
MR = 0000000000000000
 
Then, all ones:
MR = 1111111111111111
 
Next, all zeros again:
MR = 0000000000000000
 
And finally, all ones:
MR = 1111111111111111

The FOR-NEXT loop is copy-pasted from your post above. How do you know it's not setting the bit? Do you have serial line to which you can send the data as above? Is there any chanse something else in the program is resetting/changing MR before you have chanse to see it? What version of PBP? (I'm using 2.60)

/Henrik.

[vilaprinyo]

Thanks,

I tried to run the isolated code and it works. :S
I'm sorry. I tested only the complete program before.

Sure the problem is in the code between. the weird is it works compiled with PicBasic and not when compiled with PicBasicPro.

I will check possible causes...

Thanks again.

Ricard.