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| 1 | +/* Teensyduino Core Library |
| 2 | + * http://www.pjrc.com/teensy/ |
| 3 | + * Copyright (c) 2013 PJRC.COM, LLC. |
| 4 | + * |
| 5 | + * Permission is hereby granted, free of charge, to any person obtaining |
| 6 | + * a copy of this software and associated documentation files (the |
| 7 | + * "Software"), to deal in the Software without restriction, including |
| 8 | + * without limitation the rights to use, copy, modify, merge, publish, |
| 9 | + * distribute, sublicense, and/or sell copies of the Software, and to |
| 10 | + * permit persons to whom the Software is furnished to do so, subject to |
| 11 | + * the following conditions: |
| 12 | + * |
| 13 | + * 1. The above copyright notice and this permission notice shall be |
| 14 | + * included in all copies or substantial portions of the Software. |
| 15 | + * |
| 16 | + * 2. If the Software is incorporated into a build system that allows |
| 17 | + * selection among a list of target devices, then similar target |
| 18 | + * devices manufactured by PJRC.COM must be included in the list of |
| 19 | + * target devices and selectable in the same manner. |
| 20 | + * |
| 21 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 22 | + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 23 | + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 24 | + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| 25 | + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| 26 | + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 27 | + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 28 | + * SOFTWARE. |
| 29 | + */ |
| 30 | + |
| 31 | +#ifndef HardwareSerial_h |
| 32 | +#define HardwareSerial_h |
| 33 | + |
| 34 | +#include "mk20dx128.h" |
| 35 | +#include <inttypes.h> |
| 36 | + |
| 37 | +// uncomment to enable 9 bit formats |
| 38 | +//#define SERIAL_9BIT_SUPPORT |
| 39 | + |
| 40 | + |
| 41 | +#define SERIAL_7E1 0x02 |
| 42 | +#define SERIAL_7O1 0x03 |
| 43 | +#define SERIAL_8N1 0x00 |
| 44 | +#define SERIAL_8N2 0x04 |
| 45 | +#define SERIAL_8E1 0x06 |
| 46 | +#define SERIAL_8O1 0x07 |
| 47 | +#define SERIAL_7E1_RXINV 0x12 |
| 48 | +#define SERIAL_7O1_RXINV 0x13 |
| 49 | +#define SERIAL_8N1_RXINV 0x10 |
| 50 | +#define SERIAL_8N2_RXINV 0x14 |
| 51 | +#define SERIAL_8E1_RXINV 0x16 |
| 52 | +#define SERIAL_8O1_RXINV 0x17 |
| 53 | +#define SERIAL_7E1_TXINV 0x22 |
| 54 | +#define SERIAL_7O1_TXINV 0x23 |
| 55 | +#define SERIAL_8N1_TXINV 0x20 |
| 56 | +#define SERIAL_8N2_TXINV 0x24 |
| 57 | +#define SERIAL_8E1_TXINV 0x26 |
| 58 | +#define SERIAL_8O1_TXINV 0x27 |
| 59 | +#define SERIAL_7E1_RXINV_TXINV 0x32 |
| 60 | +#define SERIAL_7O1_RXINV_TXINV 0x33 |
| 61 | +#define SERIAL_8N1_RXINV_TXINV 0x30 |
| 62 | +#define SERIAL_8N2_RXINV_TXINV 0x34 |
| 63 | +#define SERIAL_8E1_RXINV_TXINV 0x36 |
| 64 | +#define SERIAL_8O1_RXINV_TXINV 0x37 |
| 65 | +#ifdef SERIAL_9BIT_SUPPORT |
| 66 | +#define SERIAL_9N1 0x84 |
| 67 | +#define SERIAL_9E1 0x8E |
| 68 | +#define SERIAL_9O1 0x8F |
| 69 | +#define SERIAL_9N1_RXINV 0x94 |
| 70 | +#define SERIAL_9E1_RXINV 0x9E |
| 71 | +#define SERIAL_9O1_RXINV 0x9F |
| 72 | +#define SERIAL_9N1_TXINV 0xA4 |
| 73 | +#define SERIAL_9E1_TXINV 0xAE |
| 74 | +#define SERIAL_9O1_TXINV 0xAF |
| 75 | +#define SERIAL_9N1_RXINV_TXINV 0xB4 |
| 76 | +#define SERIAL_9E1_RXINV_TXINV 0xBE |
| 77 | +#define SERIAL_9O1_RXINV_TXINV 0xBF |
| 78 | +#endif |
| 79 | +// bit0: parity, 0=even, 1=odd |
| 80 | +// bit1: parity, 0=disable, 1=enable |
| 81 | +// bit2: mode, 1=9bit, 0=8bit |
| 82 | +// bit3: mode10: 1=10bit, 0=8bit |
| 83 | +// bit4: rxinv, 0=normal, 1=inverted |
| 84 | +// bit5: txinv, 0=normal, 1=inverted |
| 85 | +// bit6: unused |
| 86 | +// bit7: actual data goes into 9th bit |
| 87 | + |
| 88 | + |
| 89 | +#define BAUD2DIV(baud) (((F_CPU * 2) + ((baud) >> 1)) / (baud)) |
| 90 | +#define BAUD2DIV3(baud) (((F_BUS * 2) + ((baud) >> 1)) / (baud)) |
| 91 | + |
| 92 | +// C language implementation |
| 93 | +// |
| 94 | +#ifdef __cplusplus |
| 95 | +extern "C" { |
| 96 | +#endif |
| 97 | +void serial_begin(uint32_t divisor); |
| 98 | +void serial_format(uint32_t format); |
| 99 | +void serial_end(void); |
| 100 | +void serial_set_transmit_pin(uint8_t pin); |
| 101 | +void serial_putchar(uint32_t c); |
| 102 | +void serial_write(const void *buf, unsigned int count); |
| 103 | +void serial_flush(void); |
| 104 | +int serial_available(void); |
| 105 | +int serial_getchar(void); |
| 106 | +int serial_peek(void); |
| 107 | +void serial_clear(void); |
| 108 | +void serial_print(const char *p); |
| 109 | +void serial_phex(uint32_t n); |
| 110 | +void serial_phex16(uint32_t n); |
| 111 | +void serial_phex32(uint32_t n); |
| 112 | + |
| 113 | +void serial2_begin(uint32_t divisor); |
| 114 | +void serial2_format(uint32_t format); |
| 115 | +void serial2_end(void); |
| 116 | +void serial2_putchar(uint32_t c); |
| 117 | +void serial2_write(const void *buf, unsigned int count); |
| 118 | +void serial2_flush(void); |
| 119 | +int serial2_available(void); |
| 120 | +int serial2_getchar(void); |
| 121 | +int serial2_peek(void); |
| 122 | +void serial2_clear(void); |
| 123 | + |
| 124 | +void serial3_begin(uint32_t divisor); |
| 125 | +void serial3_format(uint32_t format); |
| 126 | +void serial3_end(void); |
| 127 | +void serial3_putchar(uint32_t c); |
| 128 | +void serial3_write(const void *buf, unsigned int count); |
| 129 | +void serial3_flush(void); |
| 130 | +int serial3_available(void); |
| 131 | +int serial3_getchar(void); |
| 132 | +int serial3_peek(void); |
| 133 | +void serial3_clear(void); |
| 134 | + |
| 135 | +#ifdef __cplusplus |
| 136 | +} |
| 137 | +#endif |
| 138 | + |
| 139 | + |
| 140 | +// C++ interface |
| 141 | +// |
| 142 | +#ifdef __cplusplus |
| 143 | +#include "Stream.h" |
| 144 | +class HardwareSerial : public Stream |
| 145 | +{ |
| 146 | +public: |
| 147 | + virtual void begin(uint32_t baud) { serial_begin(BAUD2DIV(baud)); } |
| 148 | + virtual void begin(uint32_t baud, uint32_t format) { |
| 149 | + serial_begin(BAUD2DIV(baud)); |
| 150 | + serial_format(format); } |
| 151 | + virtual void end(void) { serial_end(); } |
| 152 | + virtual void transmitterEnable(uint8_t pin) { serial_set_transmit_pin(pin); } |
| 153 | + virtual int available(void) { return serial_available(); } |
| 154 | + virtual int peek(void) { return serial_peek(); } |
| 155 | + virtual int read(void) { return serial_getchar(); } |
| 156 | + virtual void flush(void) { serial_flush(); } |
| 157 | + virtual void clear(void) { serial_clear(); } |
| 158 | + virtual size_t write(uint8_t c) { serial_putchar(c); return 1; } |
| 159 | + virtual size_t write(unsigned long n) { return write((uint8_t)n); } |
| 160 | + virtual size_t write(long n) { return write((uint8_t)n); } |
| 161 | + virtual size_t write(unsigned int n) { return write((uint8_t)n); } |
| 162 | + virtual size_t write(int n) { return write((uint8_t)n); } |
| 163 | + virtual size_t write(const uint8_t *buffer, size_t size) |
| 164 | + { serial_write(buffer, size); return size; } |
| 165 | + virtual size_t write(const char *str) { size_t len = strlen(str); |
| 166 | + serial_write((const uint8_t *)str, len); |
| 167 | + return len; } |
| 168 | + virtual size_t write9bit(uint32_t c) { serial_putchar(c); return 1; } |
| 169 | +}; |
| 170 | +extern HardwareSerial Serial1; |
| 171 | + |
| 172 | +class HardwareSerial2 : public HardwareSerial |
| 173 | +{ |
| 174 | +public: |
| 175 | + virtual void begin(uint32_t baud) { serial2_begin(BAUD2DIV(baud)); } |
| 176 | + virtual void begin(uint32_t baud, uint32_t format) { |
| 177 | + serial2_begin(BAUD2DIV(baud)); |
| 178 | + serial2_format(format); } |
| 179 | + virtual void end(void) { serial2_end(); } |
| 180 | + virtual int available(void) { return serial2_available(); } |
| 181 | + virtual int peek(void) { return serial2_peek(); } |
| 182 | + virtual int read(void) { return serial2_getchar(); } |
| 183 | + virtual void flush(void) { serial2_flush(); } |
| 184 | + virtual void clear(void) { serial2_clear(); } |
| 185 | + virtual size_t write(uint8_t c) { serial2_putchar(c); return 1; } |
| 186 | + virtual size_t write(unsigned long n) { return write((uint8_t)n); } |
| 187 | + virtual size_t write(long n) { return write((uint8_t)n); } |
| 188 | + virtual size_t write(unsigned int n) { return write((uint8_t)n); } |
| 189 | + virtual size_t write(int n) { return write((uint8_t)n); } |
| 190 | + virtual size_t write(const uint8_t *buffer, size_t size) |
| 191 | + { serial2_write(buffer, size); return size; } |
| 192 | + virtual size_t write(const char *str) { size_t len = strlen(str); |
| 193 | + serial2_write((const uint8_t *)str, len); |
| 194 | + return len; } |
| 195 | + virtual size_t write9bit(uint32_t c) { serial2_putchar(c); return 1; } |
| 196 | +}; |
| 197 | +extern HardwareSerial2 Serial2; |
| 198 | + |
| 199 | +class HardwareSerial3 : public HardwareSerial |
| 200 | +{ |
| 201 | +public: |
| 202 | + virtual void begin(uint32_t baud) { serial3_begin(BAUD2DIV3(baud)); } |
| 203 | + virtual void begin(uint32_t baud, uint32_t format) { |
| 204 | + serial3_begin(BAUD2DIV3(baud)); |
| 205 | + serial3_format(format); } |
| 206 | + virtual void end(void) { serial3_end(); } |
| 207 | + virtual int available(void) { return serial3_available(); } |
| 208 | + virtual int peek(void) { return serial3_peek(); } |
| 209 | + virtual int read(void) { return serial3_getchar(); } |
| 210 | + virtual void flush(void) { serial3_flush(); } |
| 211 | + virtual void clear(void) { serial3_clear(); } |
| 212 | + virtual size_t write(uint8_t c) { serial3_putchar(c); return 1; } |
| 213 | + virtual size_t write(unsigned long n) { return write((uint8_t)n); } |
| 214 | + virtual size_t write(long n) { return write((uint8_t)n); } |
| 215 | + virtual size_t write(unsigned int n) { return write((uint8_t)n); } |
| 216 | + virtual size_t write(int n) { return write((uint8_t)n); } |
| 217 | + virtual size_t write(const uint8_t *buffer, size_t size) |
| 218 | + { serial3_write(buffer, size); return size; } |
| 219 | + virtual size_t write(const char *str) { size_t len = strlen(str); |
| 220 | + serial3_write((const uint8_t *)str, len); |
| 221 | + return len; } |
| 222 | + virtual size_t write9bit(uint32_t c) { serial3_putchar(c); return 1; } |
| 223 | +}; |
| 224 | +extern HardwareSerial3 Serial3; |
| 225 | + |
| 226 | +#endif |
| 227 | +#endif |
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