47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/* Copyright 2019 MechMerlin
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "mars80.h"
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void backlight_init_ports(void) {
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// initialize pins D0, D1, D4 and D6 as output
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setPinOutput(D0);
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setPinOutput(D1);
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setPinOutput(D4);
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setPinOutput(D6);
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// turn backlight LEDs on
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writePinHigh(D0);
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writePinHigh(D1);
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writePinHigh(D4);
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writePinHigh(D6);
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}
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void backlight_set(uint8_t level) {
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if (level == 0) {
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// turn backlight LEDs off
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writePinLow(D0);
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writePinLow(D1);
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writePinLow(D4);
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writePinLow(D6);
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} else {
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// turn backlight LEDs on
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writePinHigh(D0);
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writePinHigh(D1);
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writePinHigh(D4);
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writePinHigh(D6);
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}
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}
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