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  Topic: 74595 Usage Problem
debaruah

Replies: 8
Views: 14733
 PostForum: General CCS C Discussion   Posted: Sat Aug 22, 2015 2:52 pm   Subject: 74595 Usage Problem
I think it unnecessary to prepare all the data for each time. Even if you want to change a single data, you need to prepare all data (copy all of them to new buffer)

Driver which is using mask proc ...
  Topic: 74595 Usage Problem
debaruah

Replies: 8
Views: 14733
 PostForum: General CCS C Discussion   Posted: Sat Aug 22, 2015 6:56 am   Subject: 74595 Usage Problem
i changed the *.c driver. it seem ok.

1. choice

void write_my_expanded_outputs(BYTE* eo) {
BYTE i,j;

output_low(EXP_OUT_CLOCK);
output_low(EXP_OUT_ENABLE) ...
  Topic: 74595 Usage Problem
debaruah

Replies: 8
Views: 14733
 PostForum: General CCS C Discussion   Posted: Fri Aug 21, 2015 2:41 pm   Subject: 74595 Usage Problem
Hi asmboy,

SR outputs for first "while()" cycle;
0,0, OK
85,85, OK
170,170, OK
255,255 OK

But second and subsequent "while()" cycles, code is running, but SR outputs did ...
  Topic: 74595 Usage Problem
debaruah

Replies: 8
Views: 14733
 PostForum: General CCS C Discussion   Posted: Fri Aug 21, 2015 7:50 am   Subject: 74595 Usage Problem
Hi,
I have a problem with 74595 driver usage.

For 2 74HC595 IC,

#IFNDEF EXP_OUT_ENABLE
#define EXP_OUT_ENABLE PIN_C1
#define EXP_OUT_CLOCK PIN_C0
#define EXP_OUT_DO PIN_C2
#define N ...
 
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