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| 1 | 6 | kaklik | /*! \file uartswconf.h \brief Interrupt-driven Software UART Driver Configuration. */ |
| 2 | //***************************************************************************** |
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| 3 | // |
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| 4 | // File Name : 'uartswconf.h' |
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| 5 | // Title : Interrupt-driven Software UART Driver Configuration |
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| 6 | // Author : Pascal Stang - Copyright (C) 2002-2004 |
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| 7 | // Created : 7/20/2002 |
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| 8 | // Revised : 4/27/2004 |
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| 9 | // Version : 0.1 |
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| 10 | // Target MCU : Atmel AVR Series (intended for the ATmega16 and ATmega32) |
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| 11 | // Editor Tabs : 4 |
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| 12 | // |
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| 13 | // Description : |
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| 14 | // This uart library emulates the operation of a UART (serial port) using |
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| 15 | // the AVR's hardware timers, I/O pins, and some software. |
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| 16 | // |
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| 17 | // Specifically, this code uses: |
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| 18 | // -Timer 1 Output Compare A for transmit timing |
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| 19 | // -Timer 1 Output Compare B for receive timing |
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| 20 | // -Timer 1 Input Capture for receive triggering |
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| 21 | // |
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| 22 | // The above resources cannot be used for other purposes while this software |
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| 23 | // UART is enabled. The overflow interrupt from Timer1 can still be used for |
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| 24 | // other timing, but the prescaler for Timer1 must not be changed. |
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| 25 | // |
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| 26 | // Serial output from this UART can be routed to any I/O pin. Serial input |
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| 27 | // for this UART must come from the Timer1 Input Capture (IC1) I/O pin. |
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| 28 | // These options should be configured by editing your local copy of |
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| 29 | // "uartswconf.h". |
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| 30 | // |
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| 31 | // This code is distributed under the GNU Public License |
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| 32 | // which can be found at http://www.gnu.org/licenses/gpl.txt |
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| 33 | // |
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| 34 | //***************************************************************************** |
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| 35 | |||
| 36 | #ifndef UARTSWCONF_H |
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| 37 | #define UARTSWCONF_H |
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| 38 | |||
| 39 | // constants/macros/typdefs |
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| 40 | |||
| 41 | #define UARTSW_RX_BUFFER_SIZE 0x20 ///< UART receive buffer size in bytes |
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| 42 | |||
| 43 | #define UARTSW_INVERT ///< define to invert polarity of RX/TX signals |
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| 44 | // when non-inverted, the serial line is appropriate for passing though |
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| 45 | // an RS232 driver like the MAX232. When inverted, the serial line can |
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| 46 | // directly drive/receive RS232 signals to/from a DB9 connector. Be sure |
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| 47 | // to use a current-limiting resistor and perhaps a diode-clamp circuit when |
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| 48 | // connecting incoming RS232 signals to a microprocessor I/O pin. |
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| 49 | |||
| 50 | // if non-inverted, the serial line idles high (logic 1) between bytes |
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| 51 | // if inverted, the serial line idles low (logic 0) between bytes |
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| 52 | |||
| 53 | |||
| 54 | // UART transmit pin defines |
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| 55 | #define UARTSW_TX_PORT PORTD ///< UART Transmit Port |
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| 56 | #define UARTSW_TX_DDR DDRD ///< UART Transmit DDR |
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| 57 | #define UARTSW_TX_PIN PD5 ///< UART Transmit Pin |
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| 58 | |||
| 59 | // UART receive pin defines |
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| 60 | // This pin must correspond to the |
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| 61 | // Timer1 Input Capture (ICP or IC1) pin for your processor |
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| 62 | #define UARTSW_RX_PORT PORTD ///< UART Receive Port |
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| 63 | #define UARTSW_RX_DDR DDRD ///< UART Receive DDR |
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| 64 | #define UARTSW_RX_PORTIN PIND ///< UART Receive Port Input |
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| 65 | #define UARTSW_RX_PIN PD6 ///< UART Receive Pin |
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| 66 | |||
| 67 | #endif |
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