Search found 12 matches

Sorry, can't help, your link did not work, (tried it twice).

Read the posts at the head of the general discussion.

The advice there is to dispense with ISIS/Proteus.

It simply does not work w ...

I tried as well, but can not download any of your files.
'Distorted' sound could be wrong gain for the LM386, wrong components, wrong power supply.
I suggest eliminating the PIC portion, take the LI ...

The MCP4131 data sheet says it uses SPI mode 00 or 11 (i.e., mode 0 or 3).
Your code is using SPI mode 2. That's wrong.

See this chart by ckielstra to see the SPI mode:
http://www.ccsinfo.com/fo ...

Hello,

I am newbie at CCS programming. I am designing speaker with digital potentiometer. The amplifier is LM386 and digital potentiometer is MCP4131 (100k). I am using PIC18F4520 microcontroller a ...

If I just go with m2==2 then program get confuse with which menu it will go with, either ABC, DEF or GHI

Guide me what syntax do I use in it..
Awaiting your response.
You are the one confused, ...

Stop doing this:

output_low(PIN_B0)==0;
output_low(PIN_B1)==0;
output_high(PIN_B2)==1;

There is no equality test on output_high() or output_low().

Do it like this ...

How do you expect it will ever enter the case statement.
if (m2==1 && row_Ind == 1 && button_select==0){

if( m2==2)

I don't know how do I frame this loop.

m2= ...

You should add a small cap across the switch. I use .68 mfd as I have a reel of them,probably 4500+ left on it. .1 mfd, .22 mfd, .05mfd make work as well.
The cap will reduce if not eliminate 'contac ...

Your buttons are connected incorrectly. Do it like this for each switch:

+5v
|
<
> 4.7K
< ___ Push butto ...

You really need to think/explain what you are actually trying to do?.

output_low(PIN_xx);

sets an output pin low.

If a pin is being used as an output, it can't at the same time be an input.
...

The output_low() function doesn't return a value. Maybe you really
want to use input_state() ? But output_low() in an if() statement will
not work.

hello I made some changes in it,

...

Hello,
I have built a menu code, and this little code is part of big code. I am interfacing transistor in place of LED as shown in picture. But just for practical results i am using LED here.

voi ...