CCS :: View topic - keypad driver..coding from port d to port c

FAQ

Forum Help

Official CCS Support

Profile Log in to check your private messages Log in

CCS does not monitor this forum on a regular basis.

Please do not post bug reports on this forum. Send them to support@ccsinfo.com

keypad driver..coding from port d to port c

CCS Forum Index -> General CCS C Discussion

View previous topic :: View next topic

Author

Message

iedchan

Joined: 01 Jun 2007
Posts: 2

keypad driver..coding from port d to port c

Posted: Sat Jun 02, 2007 2:16 am

anyone knows how to change this keypad driver..so that i could used port c instead of port d?

Code:

//#byte port_d = 0x08
char get_key(void)
{
char t;
while (1) {
output_d (input_d() | 0xFF);

output_bit(PIN_D4,0);
if (input (PIN_D0) ==0);{
delay_ms(10);
return 'A';
}
if (input (PIN_D1) ==0){
delay_ms(10);
return '7';
}

if (input (PIN_D2) ==0){
delay_ms(10);
return '4';
}
if (input (PIN_D3) ==0){
delay_ms(10);
return '1';
}
output_d (input_d() | 0xFF);

output_bit(PIN_D5,0);
if (input (PIN_D0) ==0);{
delay_ms(10);
return '0';
}
if (input (PIN_D1) ==0){
delay_ms(10);
return '8';
}
if (input (PIN_D2) ==0){
delay_ms(10);
return '5';
}
if (input (PIN_D3) ==0){
delay_ms(10);
return '2';
}
output_d (input_d() | 0xFF);

output_bit(PIN_D6,0);
if (input (PIN_D0) ==0);{
delay_ms(10);
return 'B';
}
if (input (PIN_D1) ==0){
delay_ms(10);
return '9';
}
if (input (PIN_D2) ==0){
delay_ms(10);
return '6';
}
if (input (PIN_D3) ==0){
delay_ms(10);
return '3';
}
output_d (input_d() | 0xFF);

output_bit(PIN_D7,0);
if (input (PIN_D0) ==0);{
delay_ms(10);
return 'C';
}
if (input (PIN_D1) ==0){
delay_ms(10);
return 'D';
}
if (input (PIN_D2) ==0){
delay_ms(10);
return 'E';
}
if (input (PIN_D3) ==0){
delay_ms(10);
return 'F';
}
else return '<';
}
}

inservi

Joined: 13 May 2007
Posts: 128

Posted: Sat Jun 02, 2007 6:44 am

Hello,

You can try this code !

Code:

#byte port_c = 0xF83 // depending on the microcontroleur 0xF83 is for a 18F452
#define keyboard port_c
#define keyboard_line0 PIN_C0
#define keyboard_line1 PIN_C1
#define keyboard_line2 PIN_C2
#define keyboard_line3 PIN_C3
#define keyboard_row0 PIN_C4
#define keyboard_row1 PIN_C5
#define keyboard_row2 PIN_C6
#define keyboard_row3 PIN_C7
#define setPort output_c (keyboard | 0xFF);

char get_key(void){

while (true) {
setPort

output_bit(keyboard_row0,0);
if (input (keyboard_line0) ==0);{
delay_ms(10);
return 'A';
}
if (input (keyboard_line1) ==0){
delay_ms(10);
return '7';
}

if (input (keyboard_line2) ==0){
delay_ms(10);
return '4';
}
if (input (keyboard_line3) ==0){
delay_ms(10);
return '1';
}
setPort

output_bit(keyboard_row1,0);
if (input (keyboard_line0) ==0);{
delay_ms(10);
return '0';
}
if (input (keyboard_line1) ==0){
delay_ms(10);
return '8';
}
if (input (keyboard_line2) ==0){
delay_ms(10);
return '5';
}
if (input (keyboard_line3) ==0){
delay_ms(10);
return '2';
}
setPort

output_bit(keyboard_row2,0);
if (input (keyboard_line0) ==0);{
delay_ms(10);
return 'B';
}
if (input (keyboard_line1) ==0){
delay_ms(10);
return '9';
}
if (input (keyboard_line2) ==0){
delay_ms(10);
return '6';
}
if (input (keyboard_line3) ==0){
delay_ms(10);
return '3';
}
setPort

output_bit(keyboard_row3,0);
if (input (keyboard_line0) ==0);{
delay_ms(10);
return 'C';
}
if (input (keyboard_line1) ==0){
delay_ms(10);
return 'D';
}
if (input (keyboard_line2) ==0){
delay_ms(10);
return 'E';
}
if (input (keyboard_line3) ==0){
delay_ms(10);
return 'F';
}
else return '<';
}
}

I'm not try it but it is compiled without error.
Normaly, you need to change the #byte and the #define for use an other port.

dro
_________________
in médio virtus

Display posts from previous:

	CCS Forum Index -> General CCS C Discussion	All times are GMT - 6 Hours
Page 1 of 1

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum