// diagnose commands
static void cmd_diagnose(void)
{
u08 cmd, res;
u08 exit = 0;
while((cmd = get_char()) != 0) {
switch(cmd) {
case 'b': // buttons -> returns 0=no button 1=button2 2=button2 3=both buttons
res = button1_pressed() | (button2_pressed() << 1);
set_result(res);
break;
case 'l': // led: param: 1=green 2=yellow 3=both
{
cmd = parse_hex_byte(3);
led_green(cmd & 1);
led_yellow(cmd & 2);
set_result(cmd);
delay_ms(1000);
}
break;
case 'i': // io sd diagnose: show sd detect and sd protect
{
res = sdpin_no_card() ? 1 :0;
res |= sdpin_write_protect() ? 2:0;
set_result(res);
}
break;
default:
set_result(ERROR_SYNTAX);
case '.':
exit = 1;
break;
}
if(exit) break;
}
}
u08 cmd_uart_get_next(u08 **data)
{
rx_size = 0;
int button_press = 0;
while(1) {
while(!uart_read_ready()) {
#ifdef USE_BUTTON_CONTROL
// check buttons
if(button1_pressed()) {
while(button1_pressed()) {}
rx_buf[0] = 'R';
rx_size = 1;
button_press = 1;
break;
}
if(button2_pressed()) {
while(button2_pressed()) {}
rx_buf[0] = 'W';
rx_size = 1;
button_press = 1;
break;
}
#endif
}
if(button_press) {
break;
}
u08 c;
uart_read(&c);
uart_send(c);
if((c == '\n')||(c == '\r')) {
break;
}
rx_buf[rx_size] = c;
rx_size++;
}
*data = rx_buf;
uart_send_crlf();
return rx_size;
}
/*
* Task of polling buttons.
*/
void poll_buttons (void *data)
{
unsigned char pagenum = 0;
unsigned char b1_pressed = 0, b2_pressed = 0;
unsigned char b3_pressed = 0, b4_pressed = 0;
printf (&line1, "Testing LCD.");
printf (&line2, "Use buttons.");
for (;;) {
timer_delay (&timer, 10);
if (! button1_pressed ())
b1_pressed = 0;
else if (! b1_pressed) {
b1_pressed = 1;
/* Button 1: clear screen. */
lcd_clear_all (&line1, &line2);
printf (&line1, "Cleared.");
}
if (! button2_pressed ())
b2_pressed = 0;
else if (! b2_pressed) {
b2_pressed = 1;
/* Button 2: show previous page of symbols. */
display_page (--pagenum);
}
if (! button3_pressed ())
b3_pressed = 0;
else if (! b3_pressed) {
b3_pressed = 1;
/* Button 3: show next page of symbols. */
display_page (++pagenum);
}
if (! button4_pressed ())
b4_pressed = 0;
else if (! b4_pressed) {
b4_pressed = 1;
/* Button 4: scroll long message. */
printf (&line2, message1);
timer_delay (&timer, 500);
printf (&line2, message2);
}
}
}
