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38 lines
1.4 KiB
C
38 lines
1.4 KiB
C
#ifndef _UARTCFG_H
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#define _UARTCFG_H
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/*!
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* Very simple software UART for AVR microcontrollers
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* (C) 2016 Stuart Longland
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* The following defines the configuration for the UART driver. */
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/*!
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* UART BAUD rate. This is the speed that we transmit at. For the 1MHz
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* RC clock, 4800 is the maximum speed (out of the "standard" ones) that
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* will work. If you're running at 8MHz or with an external crystal, you
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* may go higher.
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*/
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#define UART_BAUD (300)
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/* Port settings */
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#define UART_TX_PORT PORTA /*!< GPIO port register for Tx */
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#define UART_TX_DDR DDRA /*!< GPIO direction register for Tx */
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#define UART_TX_BIT 4 /*!< GPIO pin for Tx */
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#endif
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