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Diffstat (limited to 'teensy/core/HardwareSerial.h')
| -rw-r--r-- | teensy/core/HardwareSerial.h | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/teensy/core/HardwareSerial.h b/teensy/core/HardwareSerial.h new file mode 100644 index 000000000..439e0f736 --- /dev/null +++ b/teensy/core/HardwareSerial.h @@ -0,0 +1,227 @@ +/* Teensyduino Core Library + * http://www.pjrc.com/teensy/ + * Copyright (c) 2013 PJRC.COM, LLC. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * 1. The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * 2. If the Software is incorporated into a build system that allows + * selection among a list of target devices, then similar target + * devices manufactured by PJRC.COM must be included in the list of + * target devices and selectable in the same manner. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef HardwareSerial_h +#define HardwareSerial_h + +#include "mk20dx128.h" +#include <inttypes.h> + +// uncomment to enable 9 bit formats +//#define SERIAL_9BIT_SUPPORT + + +#define SERIAL_7E1 0x02 +#define SERIAL_7O1 0x03 +#define SERIAL_8N1 0x00 +#define SERIAL_8N2 0x04 +#define SERIAL_8E1 0x06 +#define SERIAL_8O1 0x07 +#define SERIAL_7E1_RXINV 0x12 +#define SERIAL_7O1_RXINV 0x13 +#define SERIAL_8N1_RXINV 0x10 +#define SERIAL_8N2_RXINV 0x14 +#define SERIAL_8E1_RXINV 0x16 +#define SERIAL_8O1_RXINV 0x17 +#define SERIAL_7E1_TXINV 0x22 +#define SERIAL_7O1_TXINV 0x23 +#define SERIAL_8N1_TXINV 0x20 +#define SERIAL_8N2_TXINV 0x24 +#define SERIAL_8E1_TXINV 0x26 +#define SERIAL_8O1_TXINV 0x27 +#define SERIAL_7E1_RXINV_TXINV 0x32 +#define SERIAL_7O1_RXINV_TXINV 0x33 +#define SERIAL_8N1_RXINV_TXINV 0x30 +#define SERIAL_8N2_RXINV_TXINV 0x34 +#define SERIAL_8E1_RXINV_TXINV 0x36 +#define SERIAL_8O1_RXINV_TXINV 0x37 +#ifdef SERIAL_9BIT_SUPPORT +#define SERIAL_9N1 0x84 +#define SERIAL_9E1 0x8E +#define SERIAL_9O1 0x8F +#define SERIAL_9N1_RXINV 0x94 +#define SERIAL_9E1_RXINV 0x9E +#define SERIAL_9O1_RXINV 0x9F +#define SERIAL_9N1_TXINV 0xA4 +#define SERIAL_9E1_TXINV 0xAE +#define SERIAL_9O1_TXINV 0xAF +#define SERIAL_9N1_RXINV_TXINV 0xB4 +#define SERIAL_9E1_RXINV_TXINV 0xBE +#define SERIAL_9O1_RXINV_TXINV 0xBF +#endif +// bit0: parity, 0=even, 1=odd +// bit1: parity, 0=disable, 1=enable +// bit2: mode, 1=9bit, 0=8bit +// bit3: mode10: 1=10bit, 0=8bit +// bit4: rxinv, 0=normal, 1=inverted +// bit5: txinv, 0=normal, 1=inverted +// bit6: unused +// bit7: actual data goes into 9th bit + + +#define BAUD2DIV(baud) (((F_CPU * 2) + ((baud) >> 1)) / (baud)) +#define BAUD2DIV3(baud) (((F_BUS * 2) + ((baud) >> 1)) / (baud)) + +// C language implementation +// +#ifdef __cplusplus +extern "C" { +#endif +void serial_begin(uint32_t divisor); +void serial_format(uint32_t format); +void serial_end(void); +void serial_set_transmit_pin(uint8_t pin); +void serial_putchar(uint32_t c); +void serial_write(const void *buf, unsigned int count); +void serial_flush(void); +int serial_available(void); +int serial_getchar(void); +int serial_peek(void); +void serial_clear(void); +void serial_print(const char *p); +void serial_phex(uint32_t n); +void serial_phex16(uint32_t n); +void serial_phex32(uint32_t n); + +void serial2_begin(uint32_t divisor); +void serial2_format(uint32_t format); +void serial2_end(void); +void serial2_putchar(uint32_t c); +void serial2_write(const void *buf, unsigned int count); +void serial2_flush(void); +int serial2_available(void); +int serial2_getchar(void); +int serial2_peek(void); +void serial2_clear(void); + +void serial3_begin(uint32_t divisor); +void serial3_format(uint32_t format); +void serial3_end(void); +void serial3_putchar(uint32_t c); +void serial3_write(const void *buf, unsigned int count); +void serial3_flush(void); +int serial3_available(void); +int serial3_getchar(void); +int serial3_peek(void); +void serial3_clear(void); + +#ifdef __cplusplus +} +#endif + + +// C++ interface +// +#ifdef __cplusplus +#include "Stream.h" +class HardwareSerial : public Stream +{ +public: + virtual void begin(uint32_t baud) { serial_begin(BAUD2DIV(baud)); } + virtual void begin(uint32_t baud, uint32_t format) { + serial_begin(BAUD2DIV(baud)); + serial_format(format); } + virtual void end(void) { serial_end(); } + virtual void transmitterEnable(uint8_t pin) { serial_set_transmit_pin(pin); } + virtual int available(void) { return serial_available(); } + virtual int peek(void) { return serial_peek(); } + virtual int read(void) { return serial_getchar(); } + virtual void flush(void) { serial_flush(); } + virtual void clear(void) { serial_clear(); } + virtual size_t write(uint8_t c) { serial_putchar(c); return 1; } + virtual size_t write(unsigned long n) { return write((uint8_t)n); } + virtual size_t write(long n) { return write((uint8_t)n); } + virtual size_t write(unsigned int n) { return write((uint8_t)n); } + virtual size_t write(int n) { return write((uint8_t)n); } + virtual size_t write(const uint8_t *buffer, size_t size) + { serial_write(buffer, size); return size; } + virtual size_t write(const char *str) { size_t len = strlen(str); + serial_write((const uint8_t *)str, len); + return len; } + virtual size_t write9bit(uint32_t c) { serial_putchar(c); return 1; } +}; +extern HardwareSerial Serial1; + +class HardwareSerial2 : public HardwareSerial +{ +public: + virtual void begin(uint32_t baud) { serial2_begin(BAUD2DIV(baud)); } + virtual void begin(uint32_t baud, uint32_t format) { + serial2_begin(BAUD2DIV(baud)); + serial2_format(format); } + virtual void end(void) { serial2_end(); } + virtual int available(void) { return serial2_available(); } + virtual int peek(void) { return serial2_peek(); } + virtual int read(void) { return serial2_getchar(); } + virtual void flush(void) { serial2_flush(); } + virtual void clear(void) { serial2_clear(); } + virtual size_t write(uint8_t c) { serial2_putchar(c); return 1; } + virtual size_t write(unsigned long n) { return write((uint8_t)n); } + virtual size_t write(long n) { return write((uint8_t)n); } + virtual size_t write(unsigned int n) { return write((uint8_t)n); } + virtual size_t write(int n) { return write((uint8_t)n); } + virtual size_t write(const uint8_t *buffer, size_t size) + { serial2_write(buffer, size); return size; } + virtual size_t write(const char *str) { size_t len = strlen(str); + serial2_write((const uint8_t *)str, len); + return len; } + virtual size_t write9bit(uint32_t c) { serial2_putchar(c); return 1; } +}; +extern HardwareSerial2 Serial2; + +class HardwareSerial3 : public HardwareSerial +{ +public: + virtual void begin(uint32_t baud) { serial3_begin(BAUD2DIV3(baud)); } + virtual void begin(uint32_t baud, uint32_t format) { + serial3_begin(BAUD2DIV3(baud)); + serial3_format(format); } + virtual void end(void) { serial3_end(); } + virtual int available(void) { return serial3_available(); } + virtual int peek(void) { return serial3_peek(); } + virtual int read(void) { return serial3_getchar(); } + virtual void flush(void) { serial3_flush(); } + virtual void clear(void) { serial3_clear(); } + virtual size_t write(uint8_t c) { serial3_putchar(c); return 1; } + virtual size_t write(unsigned long n) { return write((uint8_t)n); } + virtual size_t write(long n) { return write((uint8_t)n); } + virtual size_t write(unsigned int n) { return write((uint8_t)n); } + virtual size_t write(int n) { return write((uint8_t)n); } + virtual size_t write(const uint8_t *buffer, size_t size) + { serial3_write(buffer, size); return size; } + virtual size_t write(const char *str) { size_t len = strlen(str); + serial3_write((const uint8_t *)str, len); + return len; } + virtual size_t write9bit(uint32_t c) { serial3_putchar(c); return 1; } +}; +extern HardwareSerial3 Serial3; + +#endif +#endif |