mirror of
https://github.com/qmk/qmk_firmware
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33 lines
1.2 KiB
C
33 lines
1.2 KiB
C
/* Copyright 2021 QMK
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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 3 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 "platform_deps.h"
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static void disable_jtag(void) {
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// To use PF4-7 (PC2-5 on ATmega32A), disable JTAG by writing JTD bit twice within four cycles.
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#if (defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__))
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MCUCR |= _BV(JTD);
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MCUCR |= _BV(JTD);
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#elif defined(__AVR_ATmega32A__)
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MCUCSR |= _BV(JTD);
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MCUCSR |= _BV(JTD);
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#endif
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}
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void platform_setup(void) {
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disable_jtag();
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}
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