449d2a6367
Contains two different component folders per each implementation (serial_master and serial_slave) with concrete ports. Added common public api for master and slave and common interface for master and slave implementation. Add support of cmake system (added cmake files). Added sdkconfig.defaults files for slave and master modbus examples. Updated make file and KConfig for freemodbus component Update according to review and fix doxygen warnings Fix Doxyfile to pass documentation build Update headers and change interface file names as per review comments Merge branch feature/freemodbus_move_rs485_mode_control Update after review: The stack modbus folder updated to support master and slave ports together and moved into freemodbus/modbus Stack and port files updated to remove duplicated simbols Make file, KConfig and CMakeLists.txt updated to compile master and slave stacks, common interface and concrete implementations of ports Stack callback functions execute callbacks using interface pointer from concrete port implementation User can instantiate any of concrete port using common API (only one concrete port at a time) and it does not require to select port by KConfig Port pins and mode configuration moved into example files from port files to allow user select pins and port mode (customer request) Changes tested using pymodbus, ModbusPoll and communication between two boards Updated DoxyFile according to public include path Fix maximum instance size for slave (merge from master of customer issue) Fix critical section issue TW#28622 (change spin lock based critical section to semaphore) Move serial port files into component port folder for master and slave accordingly Fix example issue showed in the log when IO slave is not configured correctly Fix conflicts while merging from origin/master Fix errors handling in modbus controller interface + some final corrections according to review Update maximum allowed number of slaves in the network segment Fix bug with incorrect coils read mask Closes https://github.com/espressif/esp-idf/issues/858
70 lines
4.5 KiB
C
70 lines
4.5 KiB
C
/*======================================================================================
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* Description:
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* This C file contains user defined parameters for Modbus example and data dictionary
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* which describes each value (characteristic) and links it to modbus registers in
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* in corresponded slave device.
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*=====================================================================================*/
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#include "mbcontroller.h"
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#include "device_params.h"
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// Here are the user instances defined as structures for device parameters packed by 1 byte
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// These are keep the values that can be accessed from Modbus master
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holding_reg_params_t holding_reg_params = { 0 };
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input_reg_params_t input_reg_params = { 0 };
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coil_reg_params_t coil_reg_params = { 0 };
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discrete_reg_params_t discrete_reg_params = { 0 };
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#define HOLD_OFFSET(field) ((uint16_t)(offsetof(holding_reg_params_t, field) + 1))
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#define INPUT_OFFSET(field) ((uint16_t)(offsetof(input_reg_params_t, field) + 1))
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#define COIL_OFFSET(field) ((uint16_t)(offsetof(coil_reg_params_t, field) + 1))
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// Discrete offset macro (options can be used as bit masks)
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#define DISCR_OFFSET(field) ((uint16_t)(offsetof(discrete_reg_params_t, field) + 1))
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#define STR(fieldname) ((const char*)( fieldname ))
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#define OPTS(min_val, max_val, step_val) { .opt1 = min_val, .opt2 = max_val, .opt3 = step_val }
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// This table below defines the characteristics supported by this Modbus master device (Data dictionary).
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// These characteristics are linked to Modbus parameters of external slave devices in Modbus network.
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// For this example next devices are supported:
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// MB_DEVICE_ADDR1 : (CID_HUMIDITY_1, CID_TEMPERATURE_1) : Modbus sensor 1 (Humidity and Temperature)
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// MB_DEVICE_ADDR2 : (CID_HUMIDITY_2, CID_TEMPERATURE_2) : Modbus sensor 2 (Humidity and Temperature)
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// MB_DEVICE_ADDR3 : (CID_RELAY_P1, CID_RELAY_P2) : Modbus output device (Relay outputs on/off)
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// There are two options to define instance for parameter:
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// 1. Define offset (param_offset field) to the field in the parameter's structure (see example below)
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// Once set it will be used as to store parameter value.
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// 2. Set param_offset field in characteristics table to zero.
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// This will allow to allocate space for parameter storage during initialization and use it as a cache.
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// Example Data (Object) Dictionary for Modbus parameters
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const mb_parameter_descriptor_t device_parameters[] = {
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// { Cid, Param Name, Units, Modbus Slave Addr, Modbus Reg Type, Reg Start, Reg Size, Instance Offset, Data Type, Data Size, Parameter Options, Access Mode}
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// Parameter: Data channel 0 : Data channel 0 = Voltage
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{ CID_DATA_CHAN_0, STR("Data_channel_0"), STR("Volts"), MB_DEVICE_ADDR1, MB_PARAM_INPUT, 0, 2,
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INPUT_OFFSET(data_chan0), PARAM_TYPE_FLOAT, 4, OPTS( -10, 10, 1 ), PAR_PERMS_READ_WRITE_TRIGGER },
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{ CID_HUMIDITY_1, STR("Humidity_1"), STR("%rH"), MB_DEVICE_ADDR1, MB_PARAM_HOLDING, 0, 2,
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HOLD_OFFSET(mb_device1_humidity), PARAM_TYPE_FLOAT, 4, OPTS( 0, 100, 1 ), PAR_PERMS_READ_WRITE_TRIGGER },
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// Parameter: Temperature_2 : Temperature from device slave address = 1
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{ CID_TEMPERATURE_1, STR("Temperature_1"), STR("<EFBFBD>C"), MB_DEVICE_ADDR1, MB_PARAM_HOLDING, 2, 2,
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HOLD_OFFSET(mb_device1_temperature), PARAM_TYPE_FLOAT, 4, OPTS( -40, 80, 1 ), PAR_PERMS_READ_WRITE_TRIGGER },
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// Parameter: Humidity_2 : Humidity from device slave address = 2
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{ CID_HUMIDITY_2, STR("Humidity_2"), STR("%rH"), MB_DEVICE_ADDR2, MB_PARAM_HOLDING, 0, 2,
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HOLD_OFFSET(mb_device2_humidity), PARAM_TYPE_FLOAT, 4, OPTS( 0, 100, 1 ), PAR_PERMS_READ_WRITE_TRIGGER },
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// Parameter: Temperature_2 : Temperature from device slave address = 2
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{ CID_TEMPERATURE_2, STR("Temperature_2"), STR("<EFBFBD>C"), MB_DEVICE_ADDR2, MB_PARAM_HOLDING, 2, 2,
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HOLD_OFFSET(mb_device2_temperature), PARAM_TYPE_FLOAT, 4, OPTS( -40, 80, 1 ), PAR_PERMS_READ_WRITE_TRIGGER },
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// Parameter: Relay P1 : Alarm on/off channel 1 : Output device 1
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{ CID_RELAY_P1, STR("RelayP1"), STR("on/off"), MB_DEVICE_ADDR3, MB_PARAM_COIL, 0, 3,
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COIL_OFFSET(coils_port1), PARAM_TYPE_U16, 2, OPTS( BIT0 | BIT1 | BIT2, 0, 0 ), PAR_PERMS_READ_WRITE_TRIGGER },
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// Parameter: Relay P2 : Alarm on/off channel 2 : Output device 1
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{ CID_RELAY_P2, STR("RelayP2"), STR("on/off"), MB_DEVICE_ADDR3, MB_PARAM_COIL, 3, 8,
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COIL_OFFSET(coils_port2), PARAM_TYPE_U16, 2, OPTS( BIT3, 0, 0 ), PAR_PERMS_READ_WRITE_TRIGGER },
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};
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// Calculate number of parameters in the table
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const uint16_t num_device_parameters = (sizeof(device_parameters)/sizeof(device_parameters[0]));
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