blob: 093b5fdd93782da6ca0e485acda1077005a47d55 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/*
Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "pearl.h"
void backlight_init_ports(void) {
// initialize pins D0, D1, D4 and D6 as output
setPinOutput(D0);
setPinOutput(D1);
setPinOutput(D4);
setPinOutput(D6);
// turn backlight LEDs on
writePinHigh(D0);
writePinHigh(D1);
writePinHigh(D4);
writePinHigh(D6);
}
void backlight_set(uint8_t level) {
if (level == 0) {
// turn backlight LEDs off
writePinLow(D0);
writePinLow(D1);
writePinLow(D4);
writePinLow(D6);
} else {
// turn backlight LEDs on
writePinHigh(D0);
writePinHigh(D1);
writePinHigh(D4);
writePinHigh(D6);
}
}
|
