blob: 58dc66016a07d9228431fb619af902c5f1661375 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
TimerSerial.h - Timer based serial library for MSP430
Copyright (c) 2012 Robert Wessels. All right reserved.
Modeled after Nicholas Zambetti's HardwareSerial.
and
msp430softserial by Rick Kimball
https://github.com/RickKimball/msp430softserial/
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef TimerSerial_h
#define TimerSerial_h
#include <inttypes.h>
#include <Stream.h>
#define TX_PIN BIT1 // TXD on P1.1
#define RX_PIN BIT2 // RXD on P1.2
// running at < 3MHz requires a lower baud rate
#ifndef TIMERSERIAL_BAUD
#if F_CPU > 1000000
#define TIMERSERIAL_BAUD 9600
#else
#define TIMERSERIAL_BAUD 4800
#endif
#endif
#if defined(__MSP430G2231__)
#define NEEDS_BUFF_PTR 1 // sadly, the g2231 seems to have a problem if we don't use the original structure
struct ring_buffer_ts; // forward declaration
#else
#define NEEDS_BUFF_PTR 0 // everything else is happy to run fully optimized
#endif
class TimerSerial : public Stream
{
public:
TimerSerial(void);
void begin(unsigned long baud = TIMERSERIAL_BAUD);
void end(void);
virtual size_t write(uint8_t byte);
virtual int read(void);
virtual int available(void);
virtual void flush(void);
virtual int peek(void);
using Print::write;
private:
#if NEEDS_BUFF_PTR
ring_buffer_ts *_rx_buffer; // gcc seems to get confused on the g2231 without this
ring_buffer_ts *_tx_buffer;
#endif
};
#if !defined(__MSP430_HAS_USCI__) && !defined(__MSP430_HAS_EUSCI_A0__)
extern TimerSerial Serial;
#endif
extern void serialEventRun(void) __attribute__((weak));
#endif
|
