50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/* Copyright (C) 2020 tyrolyean
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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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#ifndef _AVR_H_TEXT
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#define _AVR_H_TEXT
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#define F_CPU 16000000UL
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#include <avr/io.h>
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/* Shift values for the peripherials on the control bus PORTL */
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#define MR_SHIFT 0
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#define WR_SHIFT 1
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#define RD_SHIFT 2
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#define CS_UART_SHIFT 3
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#define CS_DAC_SHIFT 4
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#define ADDR_REG PORTK
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#define DATA_REG PORTF
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#define CTRL_REG PORTL
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#define ADDR_DDR_REG DDRK
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#define DATA_DDR_REG DDRF
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#define CTRL_DDR_REG DDRL
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/* Included here to prevent accidental redefinition of F_CPU */
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#include <util/delay.h>
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/* Time it takes for the bus lanes to become stable for read and write access */
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#define BUS_HOLD_US 1
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void set_addr(uint8_t addr);
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#endif
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