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Communication routine with Register shifter!

 
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Tthe aprendiz



Joined: 21 Mar 2020
Posts: 4
Location: jose soares n 625

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Communication routine with Register shifter!
PostPosted: Sat Mar 21, 2020 3:31 pm     Reply with quote

People will gradually make available a code on how to control the shift
register 595, I know it is a subject to discuss and very interesting! beauty?
Code:

void update_shift (unsigned int32 dado)
{
unsigned int32 aux=0x80000000;  // defines and initializes the variable
unsigned char aux1;

for (aux1=0;aux1<=31;aux1++)
{
  if(dado & aux);  // checks if the bit is at 1
    output_high(data);  // prints the date
  else
  output_low(data);  // reset the data
 
aux=auxe/2 //
rotates 1 bite to the right

delay_us(10);

output_high(clock);
output_low(clock);//
generates clock pulse

I will post the complete code if someone explain to me about this code 0x80000000. It is hexadecimal. It seems that when they put this type of code the microcontroller os can be recorded 1 only time otherwise I am mistaken dynamic memory I am not well remembered!
Thanks Wink
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charles Frances R.cavalcanti


Last edited by Tthe aprendiz on Sun Mar 22, 2020 6:29 pm; edited 1 time in total
temtronic



Joined: 01 Jul 2010
Posts: 7350
Location: Greensville,Ontario

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PostPosted: Sat Mar 21, 2020 6:35 pm     Reply with quote

There are typo errors in the code...
CCS supplies working shift functions, both left and right..
data type 'char' IS unsigned 8 bit ....
variable 'data' isn't defined....
Tthe aprendiz



Joined: 21 Mar 2020
Posts: 4
Location: jose soares n 625

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PostPosted: Sun Mar 22, 2020 6:20 pm     Reply with quote

temtronic wrote:
There are typo errors in the code...
CCS supplies working shift functions, both left and right..
data type 'char' IS unsigned 8 bit ....
variable 'data' isn't defined....


temtronic
You're right, sorry was a little detail, however it was done purposely to see if anyone, some "Jedi" lol ha ha ha
would show up here!

Thanks for replying ! Is as follows defining the micro controller and the fuses would look like this,
Code:

#include <18f452.h>
#fuses hs,nolvp,nowdt
#use delay (clock=10000000)
#define 11 pin_a1
#define 12 pin_a2
#define 13 pin_a3
#define 14 pin_a5
#define date pin_c0
#define clock pin_c1
#define lat pin_c2


Cool Wink
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charles Frances R.cavalcanti
temtronic



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Posts: 7350
Location: Greensville,Ontario

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PostPosted: Sun Mar 22, 2020 8:02 pm     Reply with quote

BTW CCS supplies a '595' driver....
Ttelmah



Joined: 11 Mar 2010
Posts: 15727

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PostPosted: Mon Mar 23, 2020 2:02 am     Reply with quote

Also aux is not defined, so after one loop the contents of aux become
indeterminate. May be what is actually causing the problem....
Tthe aprendiz



Joined: 21 Mar 2020
Posts: 4
Location: jose soares n 625

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PostPosted: Wed Mar 25, 2020 12:53 pm     Reply with quote

Ttelmah wrote:
Also aux is not defined, so after one loop the contents of aux become
indeterminate. May be what is actually causing the problem....


Code:
aux defined in unsigned aux = 0x80000000
ok???
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charles Frances R.cavalcanti
Tthe aprendiz



Joined: 21 Mar 2020
Posts: 4
Location: jose soares n 625

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PostPosted: Wed Mar 25, 2020 12:57 pm     Reply with quote

temtronic wrote:
BTW CCS supplies a '595' driver....


These libraries are difficult for those who do not have a code and making your own code would be better.
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charles Frances R.cavalcanti
Ttelmah



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PostPosted: Thu Mar 26, 2020 3:55 am     Reply with quote

Tthe aprendiz wrote:
Ttelmah wrote:
Also aux is not defined, so after one loop the contents of aux become
indeterminate. May be what is actually causing the problem....


Code:
aux defined in unsigned aux = 0x80000000
ok???


Actually it is auxe that is missing....
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