sabdullah
Guest
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| Microsoft Serial mouse |
 Posted: Wed Mar 29, 2006 2:51 am |
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I am using PIC 16f877 as amouse controller
This is my code in C language
i am using the already example code but i do not make it as interrupt
The computer recognize a serial mouse and shows that it works.
But when i send data for movement or pushing a click it does not work.
i am sure that i send data correctly.. but no respond.
Can any one Help me.
Thanks...
| Code: |
#elif defined(__PCM__)
#include <16F877.h>
#device ADC=8
#fuses HS,NOWDT,NOPROTECT,NOLVP,NOPUT
#use delay(clock=20000000)
#use rs232(baud=1200, xmit=PIN_C6, rcv=PIN_C7,errors) // Jumpers: 8 to 11, 7 to 12
#define MICROSOFT TRUE
#define MOUSE_SYSTEMS FALSE //not tested. may not be compatable with Windows
#DEFINE LEFT_BUTTON PIN_B6
#DEFINE RIGHT_BUTTON PIN_B7
#DEFINE MIDDLE_BUTTON PIN_B5
#DEFINE X_CHANNEL 0
#DEFINE Y_CHANNEL 1
struct {
short int delta;
short int left;
short int right;
short int middle;
signed int x;
signed int y;
} mouse;
void clear_all_mouse(void) {
mouse.delta=0;
mouse.x=0;
mouse.y=0;
mouse.left=0;
mouse.right=0;
mouse.middle=0;
}
#int_ext
void reset(void) {
#if MICROSOFT
clear_all_mouse();
putc(0x80|'M');
#endif
}
void get_data(void) {
signed int pos;
if ((input(LEFT_BUTTON))&&(mouse.left)) {mouse.left=0;mouse.delta=1;}
if ((input(RIGHT_BUTTON))&&(mouse.right)) {mouse.right=0;mouse.delta=1;}
if ((input(MIDDLE_BUTTON))&&(mouse.middle)) {mouse.middle=0;mouse.delta=1;}
if ((!input(LEFT_BUTTON))&&(!mouse.left)) {mouse.left=1;mouse.delta=1;}
if ((!input(RIGHT_BUTTON))&&(!mouse.right)) {mouse.right=1;mouse.delta=1;}
if ((!input(MIDDLE_BUTTON))&&(!mouse.middle)) {mouse.middle=1;mouse.delta=1;}
set_adc_channel(X_CHANNEL);
delay_us(10);
pos=read_adc() & 0xF8;
mouse.x=(pos-0x80)/10;
set_adc_channel(Y_CHANNEL);
delay_us(10);
pos=read_adc() & 0xF8;
mouse.y=(pos-0x80)/10;
if ((mouse.x)||(mouse.y)) {mouse.delta=1;}
}
void send_data(void) {
#if MICROSOFT
putc(0xC0 | (mouse.left << 5) | (mouse.right <<4 ) | ((mouse.y >> 4) & 0x0C) | ((mouse.x >> 6) & 0x03));
putc(0x80 | mouse.x & 0x3F);
putc(0x80 | mouse.y & 0x3F);
#elif MOUSE_SYSTEMS
putc(0x80 | (!mouse.left<<2) | (!mouse.middle<<1) | !mouse.right);
putc(mouse.x);
mouse.x=0;
putc(mouse.y);
mouse.y=0;
putc(mouse.x);
putc(mouse.y);
#endif
mouse.delta=0;
mouse.x=0;
mouse.y=0;
}
void main(void) {
clear_all_mouse();
setup_adc_ports(RA0_RA1_RA3_ANALOG);
setup_adc(ADC_CLOCK_DIV_2);
ext_int_edge(H_TO_L);
enable_interrupts(int_ext);
enable_interrupts(global);
while (TRUE) {
get_data();
if (mouse.delta) {send_data();delay_ms(17);}
}
} |
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