Software modbus, display, knoppen, bewegingssensor en mbed OS
Dependents: testSoftware8_alles_display
setup.h@0:d603d31b42dc, 2018-06-07 (annotated)
- Committer:
- mikevd1
- Date:
- Thu Jun 07 14:28:24 2018 +0000
- Revision:
- 0:d603d31b42dc
- Child:
- 2:ca3d2395b6d3
CRC toevoeging, code overzichtelijker gemaakt ; ; fouten:; bit gaat nog niet op 0 met de juiste code;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mikevd1 | 0:d603d31b42dc | 1 | #ifndef SETUP_H |
mikevd1 | 0:d603d31b42dc | 2 | #define SETUP_H |
mikevd1 | 0:d603d31b42dc | 3 | |
mikevd1 | 0:d603d31b42dc | 4 | /* |
mikevd1 | 0:d603d31b42dc | 5 | SimpleModbusSlave allows you to communicate |
mikevd1 | 0:d603d31b42dc | 6 | to any slave using the Modbus RTU protocol. |
mikevd1 | 0:d603d31b42dc | 7 | |
mikevd1 | 0:d603d31b42dc | 8 | The crc calculation is based on the work published |
mikevd1 | 0:d603d31b42dc | 9 | by jpmzometa at |
mikevd1 | 0:d603d31b42dc | 10 | http://sites.google.com/site/jpmzometa/arduino-mbrt |
mikevd1 | 0:d603d31b42dc | 11 | |
mikevd1 | 0:d603d31b42dc | 12 | By Juan Bester : bester.juan@gmail.com |
mikevd1 | 0:d603d31b42dc | 13 | |
mikevd1 | 0:d603d31b42dc | 14 | The functions implemented are functions 3 and 16. |
mikevd1 | 0:d603d31b42dc | 15 | read holding registers and preset multiple registers |
mikevd1 | 0:d603d31b42dc | 16 | of the Modbus RTU Protocol, to be used over the Arduino serial connection. |
mikevd1 | 0:d603d31b42dc | 17 | |
mikevd1 | 0:d603d31b42dc | 18 | This implementation DOES NOT fully comply with the Modbus specifications. |
mikevd1 | 0:d603d31b42dc | 19 | |
mikevd1 | 0:d603d31b42dc | 20 | Specifically the frame time out have not been implemented according |
mikevd1 | 0:d603d31b42dc | 21 | to Modbus standards. The code does however combine the check for |
mikevd1 | 0:d603d31b42dc | 22 | inter character time out and frame time out by incorporating a maximum |
mikevd1 | 0:d603d31b42dc | 23 | time out allowable when reading from the message stream. |
mikevd1 | 0:d603d31b42dc | 24 | |
mikevd1 | 0:d603d31b42dc | 25 | These library of functions are designed to enable a program send and |
mikevd1 | 0:d603d31b42dc | 26 | receive data from a device that communicates using the Modbus protocol. |
mikevd1 | 0:d603d31b42dc | 27 | |
mikevd1 | 0:d603d31b42dc | 28 | SimpleModbusSlave implements an unsigned int return value on a call to modbus_update(). |
mikevd1 | 0:d603d31b42dc | 29 | This value is the total error count since the slave started. It's useful for fault finding. |
mikevd1 | 0:d603d31b42dc | 30 | |
mikevd1 | 0:d603d31b42dc | 31 | This code is for a Modbus slave implementing functions 3 and 16 |
mikevd1 | 0:d603d31b42dc | 32 | function 3: Reads the binary contents of holding registers (4X references) |
mikevd1 | 0:d603d31b42dc | 33 | function 16: Presets values into a sequence of holding registers (4X references) |
mikevd1 | 0:d603d31b42dc | 34 | |
mikevd1 | 0:d603d31b42dc | 35 | All the functions share the same register array. |
mikevd1 | 0:d603d31b42dc | 36 | |
mikevd1 | 0:d603d31b42dc | 37 | Exception responses: |
mikevd1 | 0:d603d31b42dc | 38 | 1 ILLEGAL FUNCTION |
mikevd1 | 0:d603d31b42dc | 39 | 2 ILLEGAL DATA ADDRESS |
mikevd1 | 0:d603d31b42dc | 40 | 3 ILLEGAL DATA VALUE |
mikevd1 | 0:d603d31b42dc | 41 | |
mikevd1 | 0:d603d31b42dc | 42 | Note: |
mikevd1 | 0:d603d31b42dc | 43 | The Arduino serial ring buffer is 128 bytes or 64 registers. |
mikevd1 | 0:d603d31b42dc | 44 | Most of the time you will connect the arduino to a master via serial |
mikevd1 | 0:d603d31b42dc | 45 | using a MAX485 or similar. |
mikevd1 | 0:d603d31b42dc | 46 | |
mikevd1 | 0:d603d31b42dc | 47 | In a function 3 request the master will attempt to read from your |
mikevd1 | 0:d603d31b42dc | 48 | slave and since 5 bytes is already used for ID, FUNCTION, NO OF BYTES |
mikevd1 | 0:d603d31b42dc | 49 | and two BYTES CRC the master can only request 122 bytes or 61 registers. |
mikevd1 | 0:d603d31b42dc | 50 | |
mikevd1 | 0:d603d31b42dc | 51 | In a function 16 request the master will attempt to write to your |
mikevd1 | 0:d603d31b42dc | 52 | slave and since a 9 bytes is already used for ID, FUNCTION, ADDRESS, |
mikevd1 | 0:d603d31b42dc | 53 | NO OF REGISTERS, NO OF BYTES and two BYTES CRC the master can only write |
mikevd1 | 0:d603d31b42dc | 54 | 118 bytes or 59 registers. |
mikevd1 | 0:d603d31b42dc | 55 | |
mikevd1 | 0:d603d31b42dc | 56 | Using the FTDI converter ic the maximum bytes you can send is limited |
mikevd1 | 0:d603d31b42dc | 57 | to its internal buffer which is 60 bytes or 30 unsigned int registers. |
mikevd1 | 0:d603d31b42dc | 58 | |
mikevd1 | 0:d603d31b42dc | 59 | Thus: |
mikevd1 | 0:d603d31b42dc | 60 | |
mikevd1 | 0:d603d31b42dc | 61 | In a function 3 request the master will attempt to read from your |
mikevd1 | 0:d603d31b42dc | 62 | slave and since 5 bytes is already used for ID, FUNCTION, NO OF BYTES |
mikevd1 | 0:d603d31b42dc | 63 | and two BYTES CRC the master can only request 54 bytes or 27 registers. |
mikevd1 | 0:d603d31b42dc | 64 | |
mikevd1 | 0:d603d31b42dc | 65 | In a function 16 request the master will attempt to write to your |
mikevd1 | 0:d603d31b42dc | 66 | slave and since a 9 bytes is already used for ID, FUNCTION, ADDRESS, |
mikevd1 | 0:d603d31b42dc | 67 | NO OF REGISTERS, NO OF BYTES and two BYTES CRC the master can only write |
mikevd1 | 0:d603d31b42dc | 68 | 50 bytes or 25 registers. |
mikevd1 | 0:d603d31b42dc | 69 | |
mikevd1 | 0:d603d31b42dc | 70 | Since it is assumed that you will mostly use the Arduino to connect to a |
mikevd1 | 0:d603d31b42dc | 71 | master without using a USB to Serial converter the internal buffer is set |
mikevd1 | 0:d603d31b42dc | 72 | the same as the Arduino Serial ring buffer which is 128 bytes. |
mikevd1 | 0:d603d31b42dc | 73 | |
mikevd1 | 0:d603d31b42dc | 74 | The functions included here have been derived from the |
mikevd1 | 0:d603d31b42dc | 75 | Modbus Specifications and Implementation Guides |
mikevd1 | 0:d603d31b42dc | 76 | |
mikevd1 | 0:d603d31b42dc | 77 | http://www.modbus.org/docs/Modbus_over_serial_line_V1_02.pdf |
mikevd1 | 0:d603d31b42dc | 78 | http://www.modbus.org/docs/Modbus_Application_Protocol_V1_1b.pdf |
mikevd1 | 0:d603d31b42dc | 79 | http://www.modbus.org/docs/PI_MBUS_300.pdf |
mikevd1 | 0:d603d31b42dc | 80 | */ |
mikevd1 | 0:d603d31b42dc | 81 | |
mikevd1 | 0:d603d31b42dc | 82 | // function definitions |
mikevd1 | 0:d603d31b42dc | 83 | |
mikevd1 | 0:d603d31b42dc | 84 | |
mikevd1 | 0:d603d31b42dc | 85 | const uint16_t crc_tab_8005_reflected[] = |
mikevd1 | 0:d603d31b42dc | 86 | { |
mikevd1 | 0:d603d31b42dc | 87 | 0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241, |
mikevd1 | 0:d603d31b42dc | 88 | 0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440, |
mikevd1 | 0:d603d31b42dc | 89 | 0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40, |
mikevd1 | 0:d603d31b42dc | 90 | 0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841, |
mikevd1 | 0:d603d31b42dc | 91 | 0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40, |
mikevd1 | 0:d603d31b42dc | 92 | 0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41, |
mikevd1 | 0:d603d31b42dc | 93 | 0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641, |
mikevd1 | 0:d603d31b42dc | 94 | 0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040, |
mikevd1 | 0:d603d31b42dc | 95 | 0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240, |
mikevd1 | 0:d603d31b42dc | 96 | 0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441, |
mikevd1 | 0:d603d31b42dc | 97 | 0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41, |
mikevd1 | 0:d603d31b42dc | 98 | 0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840, |
mikevd1 | 0:d603d31b42dc | 99 | 0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41, |
mikevd1 | 0:d603d31b42dc | 100 | 0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40, |
mikevd1 | 0:d603d31b42dc | 101 | 0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640, |
mikevd1 | 0:d603d31b42dc | 102 | 0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041, |
mikevd1 | 0:d603d31b42dc | 103 | |
mikevd1 | 0:d603d31b42dc | 104 | 0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240, |
mikevd1 | 0:d603d31b42dc | 105 | 0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441, |
mikevd1 | 0:d603d31b42dc | 106 | 0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41, |
mikevd1 | 0:d603d31b42dc | 107 | 0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840, |
mikevd1 | 0:d603d31b42dc | 108 | 0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41, |
mikevd1 | 0:d603d31b42dc | 109 | 0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40, |
mikevd1 | 0:d603d31b42dc | 110 | 0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640, |
mikevd1 | 0:d603d31b42dc | 111 | 0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041, |
mikevd1 | 0:d603d31b42dc | 112 | 0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241, |
mikevd1 | 0:d603d31b42dc | 113 | 0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440, |
mikevd1 | 0:d603d31b42dc | 114 | 0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40, |
mikevd1 | 0:d603d31b42dc | 115 | 0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841, |
mikevd1 | 0:d603d31b42dc | 116 | 0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40, |
mikevd1 | 0:d603d31b42dc | 117 | 0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41, |
mikevd1 | 0:d603d31b42dc | 118 | 0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641, |
mikevd1 | 0:d603d31b42dc | 119 | 0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040 |
mikevd1 | 0:d603d31b42dc | 120 | }; |
mikevd1 | 0:d603d31b42dc | 121 | |
mikevd1 | 0:d603d31b42dc | 122 | void modbus_configure(long baud, int _slaveID ); |
mikevd1 | 0:d603d31b42dc | 123 | int modbus_read(void); |
mikevd1 | 0:d603d31b42dc | 124 | int modbus_read2(void); |
mikevd1 | 0:d603d31b42dc | 125 | //unsigned short calculate_crc16_Modbus( uint8_t *checkArray , int dataLengt ); |
mikevd1 | 0:d603d31b42dc | 126 | //unsigned long update_crc16_reflected(const long *table, unsigned long crc, unsigned int c ); |
mikevd1 | 0:d603d31b42dc | 127 | //unsigned long update_crc16_A001( unsigned long crc, unsigned int c ); |
mikevd1 | 0:d603d31b42dc | 128 | int modbus_sendData(void); |
mikevd1 | 0:d603d31b42dc | 129 | |
mikevd1 | 0:d603d31b42dc | 130 | uint16_t update_crc16_reflected(const uint16_t *table, uint16_t crc, unsigned int c ); |
mikevd1 | 0:d603d31b42dc | 131 | uint16_t update_crc16_A001( long crc, unsigned int c ); |
mikevd1 | 0:d603d31b42dc | 132 | long calculate_crc16_Modbus(unsigned int *p, unsigned int length); |
mikevd1 | 0:d603d31b42dc | 133 | |
mikevd1 | 0:d603d31b42dc | 134 | |
mikevd1 | 0:d603d31b42dc | 135 | |
mikevd1 | 0:d603d31b42dc | 136 | #endif |