Digi RCM4000 Instrukcja Użytkownika Strona 36
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30 RabbitCore RCM4000
4.2 Serial Communication
The RCM4000 module does not have any serial transceivers directly on the board. How-
ever, a serial interface may be incorporated on the board the RCM4000 is mounted on. For
example, the Prototyping Board has an RS-232 transceiver chip.
4.2.1 Serial Ports
There are five serial ports designated as Serial Ports A, B, C, D, and F. All five serial ports
can operate in an asynchronous mode up to the baud rate of the system clock divided by 8.
An asynchronous port can handle 7 or 8 data bits. A 9th bit address scheme, where an
additional bit is sent to mark the first byte of a message, is also supported.
Serial Port A is normally used as a programming port, but may be used either as an asyn-
chronous or as a clocked serial port once application development has been completed and
the RCM4000 is operating in the Run Mode.
Serial Port B is used by the A/D converter, and is not available for other use off the
RCM4000, but is available on the RCM4010.
Serial Ports C and D can also be operated in the clocked serial mode. In this mode, a clock
line synchronously clocks the data in or out. Either of the two communicating devices can
supply the clock.
Serial Ports F can also be configured as an SDLC/HDLC serial port. The IrDA protocol is
also supported in SDLC format by this serial port.
Table 3 summarizes the possible parallel port pins for the serial ports and their clocks.
Table 3. Rabbit 4000 Serial Port and Clock Pins
Serial Port A
TXA PC6, PC7, PD6
Serial Port D
TXD PC0, PC1
RXA PC7, PD7, PE7 RXD PC1, PD1, PE1
SCLKA PB1 SCLKD PD0, PE0, PE3, PC3
Serial Port B
TXB PC4, PC5, PD4
Serial Port F
TXF PD6, PE6, PC6
RXB PC5, PD5, PE5 RXF PD3, PE3, PC3
SCLKB PB0 RCLKF PD1, PE1, PC1
Serial Port C
TXC PC2, PC3 TCLKF PD0, PE0, PC0
RXC PC3, PD3, PE3 TCLKF PD0, PE0, PC0
SCLKC PD2, PE2, PE7, PC7
RCLKF must be selected to be on the same parallel port as TXF.
- RabbitCore RCM4000 1
- Rabbit Semiconductor 2
- Trademarks 2
- TABLE OF CONTENTS 3
- RabbitCore RCM4100 4
- Appendix C. Power Supply 109 5
- Notice to Users 111 5
- Index 113 5
- Schematics 117 5
- 1. INTRODUCTION 7
- 1.1 RCM4000 Features 8
- User’s Manual 3 9
- 4 RabbitCore RCM4000 10
- A compatible 11
- 6 RabbitCore RCM4000 12
- 2. GETTING STARTED 13
- 2.2 Hardware Connections 14
- RCM4000/ 15
- 10 RabbitCore RCM4000 16
- Other Power-Supplies 17
- 2.3 Run a Sample Program 18
- 2.4 Where Do I Go From Here? 19
- 14 RabbitCore RCM4000 20
- 3. RUNNING SAMPLE PROGRAMS 21
- 3.2 Sample Programs 22
- 3. Run from RAM 23
- 18 RabbitCore RCM4000 24
- IP Address : 10.10.6.101 25
- Netmask : 255.255.255.0 25
- Default gateway : 10.10.6.1 25
- 20 RabbitCore RCM4000 26
- STDIO window 27
- 22 RabbitCore RCM4000 28
- 4. HARDWARE REFERENCE 29
- These pinouts are as seen on 30
- Backup Battery 31
- 26 RabbitCore RCM4000 32
- User’s Manual 27 33
- 28 RabbitCore RCM4000 34
- User’s Manual 29 35
- 4.2 Serial Communication 36
- ETHERNET 37
- DIAG connector on the 38
- 4.3 Programming Cable 39
- 34 RabbitCore RCM4000 40
- (RCM4000) 41
- Conversion starts 42
- User’s Manual 37 43
- 4.5 Other Hardware 44
- 4.6 Memory 45
- 40 RabbitCore RCM4000 46
- 5. SOFTWARE REFERENCE 47
- 42 RabbitCore RCM4000 48
- SAMPLES/RCM4000 49
- RS232.LIB 49
- PACKET.LIB 49
- 44 RabbitCore RCM4000 50
- User’s Manual 45 51
- RETURN VALUE 51
- User’s Manual 47 53
- User’s Manual 49 55
- PARAMETERS 55
- -1 overflow or out of range 56
- User’s Manual 51 57
- SEE ALSO 57
- 52 RabbitCore RCM4000 58
- User’s Manual 53 59
- 54 RabbitCore RCM4000 60
- User’s Manual 55 61
- 56 RabbitCore RCM4000 62
- User’s Manual 57 63
- PARAMETER 63
- 58 RabbitCore RCM4000 64
- User’s Manual 59 65
- 60 RabbitCore RCM4000 66
- 5.3 Upgrading Dynamic C 67
- 62 RabbitCore RCM4000 68
- 6. USING THE TCP/IP FEATURES 69
- 64 RabbitCore RCM4000 70
- User’s Manual 65 71
- 66 RabbitCore RCM4000 72
- User’s Manual 67 73
- 68 RabbitCore RCM4000 74
- User’s Manual 69 75
- 70 RabbitCore RCM4000 76
- User’s Manual 71 77
- 72 RabbitCore RCM4000 78
- 74 RabbitCore RCM4000 80
- 6.7 Where Do I Go From Here? 81
- 76 RabbitCore RCM4000 82
- User’s Manual 77 83
- Please refer to the RCM4000 84
- Exclusion 85
- 80 RabbitCore RCM4000 86
- User’s Manual 81 87
- A.1.1 A/D Converter 88
- RCM4000 Series 89
- Footprint 89
- 84 RabbitCore RCM4000 90
- A.4 Bus Loading 91
- I/O read and write cycles 92
- User’s Manual 87 93
- A.5 Conformal Coating 94
- A.6 Jumper Configurations 95
- 90 RabbitCore RCM4000 96
- PPENDIX B. PROTOTYPING BOARD 97
- B.1 Introduction 98
- User’s Manual 93 99
- 94 RabbitCore RCM4000 100
- B.3 Power Supply 102
- User’s Manual 97 103
- 98 RabbitCore RCM4000 104
- Prototyping Board 105
- JP23/JP24 106
- User’s Manual 101 107
- Thermistor 108
- (RCM4100) 108
- User’s Manual 103 109
- 106 RabbitCore RCM4000 112
- User’s Manual 107 113
- 108 RabbitCore RCM4000 114
- APPENDIX C. POWER SUPPLY 115
- 165 mA·h 116
- NOTICE TO USERS 117
- 112 RabbitCore RCM4000 118
- User’s Manual 113 119
- 114 RabbitCore RCM4000 120
- User’s Manual 115 121
- 116 RabbitCore RCM4000 122
- SCHEMATICS 123
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