Erick / Mbed 2 deprecated ICE_BLE_TEST

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Dependencies:   NaturalTinyShell_ice libmDot-12Sept mbed-rtos mbed

Fork of ICE by Erick

src/ModbusMaster/ModbusMaster.cpp@181:e2c982c94e98, 2016-10-04 (annotated)

Committer:
davidjhoward
Date:
Tue Oct 04 20:47:21 2016 +0000
Revision:
181:e2c982c94e98
Parent:
180:b548e289b648
Child:
186:16912aa18c2a
remove printfs from simulation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jmarkel44 0:65cfa4873284 1 /******************************************************************************
davidjhoward 4:c35db3946fd8 2 *
jmarkel44 0:65cfa4873284 3 * File: ModbusMaster.cpp
jmarkel44 0:65cfa4873284 4 * Desciption: source for the ICE Modbus Master
jmarkel44 0:65cfa4873284 5 *
jmarkel44 0:65cfa4873284 6 *****************************************************************************/
jmarkel44 0:65cfa4873284 7 #include "global.h"
jmarkel44 0:65cfa4873284 8 #include <stdio.h>
davidjhoward 31:4b1587034318 9 #include "MTSLog.h"
jmarkel44 0:65cfa4873284 10 #include "BLEDataHandler.h"
davidjhoward 4:c35db3946fd8 11 #include "ModbusMaster.h"
davidjhoward 8:abe51ae5ef8b 12 #include "MbedJSONValue.h"
jmarkel44 0:65cfa4873284 13
davidjhoward 81:d45bfa16953a 14 DigitalOut dout1(PC_1);
davidjhoward 81:d45bfa16953a 15 DigitalOut dout2(PA_1);
davidjhoward 148:ee3cbaafe355 16 DigitalIn flow_switch(PA_0);
davidjhoward 148:ee3cbaafe355 17 DigitalIn dinp2(PC_13);
davidjhoward 81:d45bfa16953a 18
jmarkel44 0:65cfa4873284 19 /*****************************************************************************
jmarkel44 0:65cfa4873284 20 * Function: ModbusMaster
jmarkel44 0:65cfa4873284 21 * Description: entry point for the Modbus Master
jmarkel44 0:65cfa4873284 22 *
jmarkel44 0:65cfa4873284 23 * @param (IN) args (user-defined arguments)
jmarkel44 0:65cfa4873284 24 * @return none
jmarkel44 0:65cfa4873284 25 *****************************************************************************/
davidjhoward 149:950c90425f7c 26 std::map<std::string,VirtualCommand> VirtualCommandMap;
davidjhoward 149:950c90425f7c 27
jmarkel44 177:9ec90c8e3ce1 28 char ModbusMasterScratchBuf[MAX_FILE_SIZE];
jmarkel44 0:65cfa4873284 29 void ModbusMaster(void const *args)
jmarkel44 0:65cfa4873284 30 {
davidjhoward 31:4b1587034318 31 logInfo("%s ModbusMaster has started...", __func__);
davidjhoward 15:a6ee32969e8e 32 bool status;
davidjhoward 149:950c90425f7c 33 RegisterType_t regType;
davidjhoward 81:d45bfa16953a 34
davidjhoward 54:ec1b03064bbd 35 modbus_init(MB_BAUD_RATE);
davidjhoward 54:ec1b03064bbd 36 DigitalOut flu_power(PA_11);
davidjhoward 54:ec1b03064bbd 37 flu_power = 0; // provide power to the modbus
jmarkel44 0:65cfa4873284 38
davidjhoward 39:9287c7d59016 39 while( true ) {
davidjhoward 8:abe51ae5ef8b 40
davidjhoward 173:acfb464a4aec 41 MbedJSONValue json_value;
davidjhoward 173:acfb464a4aec 42
davidjhoward 39:9287c7d59016 43 // configure modbus registers based in all files that start with "input"
davidjhoward 39:9287c7d59016 44 std::vector<mDot::mdot_file> file_list = GLOBAL_mdot->listUserFiles();
davidjhoward 39:9287c7d59016 45 for (std::vector<mDot::mdot_file>::iterator i = file_list.begin(); i != file_list.end(); ++i) {
davidjhoward 149:950c90425f7c 46 if( (strncmp( i->name, "vcmd", (strlen("input")-1)) == 0) ) {
jmarkel44 177:9ec90c8e3ce1 47 status = GLOBAL_mdot->readUserFile(i->name, ModbusMasterScratchBuf, MAX_FILE_SIZE);
davidjhoward 149:950c90425f7c 48 if( status != true ) {
davidjhoward 149:950c90425f7c 49 logInfo("(%d)read file failed, status=%d", __LINE__, status);
davidjhoward 149:950c90425f7c 50 } else {
davidjhoward 151:9d47fe5ba805 51 logInfo("(%s:%d)loading File: %s", __func__, __LINE__, i->name );
davidjhoward 149:950c90425f7c 52 }
davidjhoward 8:abe51ae5ef8b 53
davidjhoward 149:950c90425f7c 54 parse( json_value, ModbusMasterScratchBuf );
davidjhoward 162:5e8948b8044d 55
davidjhoward 149:950c90425f7c 56 std::string id = json_value["id"].get<std::string>().c_str();
davidjhoward 149:950c90425f7c 57 VirtualCommandMap[id].constant = atof(json_value["constant"].get<std::string>().c_str());
davidjhoward 149:950c90425f7c 58 VirtualCommandMap[id].opl = json_value["opl"].get<std::string>().c_str();
davidjhoward 149:950c90425f7c 59 VirtualCommandMap[id].opr = json_value["opr"].get<std::string>().c_str();
davidjhoward 149:950c90425f7c 60 VirtualCommandMap[id].op = json_value["op"].get<std::string>().c_str();
davidjhoward 151:9d47fe5ba805 61 logInfo("Processd virtual command file: id=%s", id.c_str());
davidjhoward 149:950c90425f7c 62 continue;
davidjhoward 149:950c90425f7c 63 }
davidjhoward 149:950c90425f7c 64
davidjhoward 149:950c90425f7c 65 regType = REG_TYPE_NONE;
davidjhoward 149:950c90425f7c 66
davidjhoward 149:950c90425f7c 67 if( (strncmp( i->name, "input", (strlen("input")-1)) == 0) ) {
davidjhoward 149:950c90425f7c 68 regType = REG_TYPE_INPUT;
davidjhoward 149:950c90425f7c 69 } else if( (strncmp( i->name, "output", (strlen("output")-1)) == 0) ) {
davidjhoward 149:950c90425f7c 70 regType = REG_TYPE_OUTPUT;
davidjhoward 149:950c90425f7c 71 } else if( (strncmp( i->name, "vinput", (strlen("vinput")-1)) == 0) ) {
davidjhoward 149:950c90425f7c 72 regType = REG_TYPE_VINPUT;
davidjhoward 149:950c90425f7c 73 } else if( (strncmp( i->name, "voutput", (strlen("voutput")-1)) == 0) ) {
davidjhoward 149:950c90425f7c 74 regType = REG_TYPE_VOUTPUT;
davidjhoward 149:950c90425f7c 75 }
davidjhoward 149:950c90425f7c 76
davidjhoward 149:950c90425f7c 77 if( regType != REG_TYPE_NONE ) {
davidjhoward 81:d45bfa16953a 78
jmarkel44 177:9ec90c8e3ce1 79 status = GLOBAL_mdot->readUserFile(i->name, ModbusMasterScratchBuf, MAX_FILE_SIZE);
davidjhoward 39:9287c7d59016 80 if( status != true ) {
davidjhoward 45:3b9e1923cb15 81 logInfo("(%d)read file failed, status=%d", __LINE__, status);
davidjhoward 39:9287c7d59016 82 } else {
davidjhoward 151:9d47fe5ba805 83 logInfo("(%s:%d)loading File: %s", __func__, __LINE__, i->name );
davidjhoward 39:9287c7d59016 84 }
davidjhoward 81:d45bfa16953a 85
davidjhoward 42:c703a60993b1 86 parse( json_value, ModbusMasterScratchBuf );
davidjhoward 9:ef0ca2f8a8a6 87
davidjhoward 39:9287c7d59016 88 std::string id = json_value["id"].get<std::string>().c_str();
davidjhoward 39:9287c7d59016 89 ModbusRegisterMap[id].name = json_value["name"].get<std::string>().c_str();
davidjhoward 39:9287c7d59016 90 ModbusRegisterMap[id].units = json_value["units"].get<std::string>().c_str();
davidjhoward 39:9287c7d59016 91 ModbusRegisterMap[id].min = atof(json_value["min"].get<std::string>().c_str());
davidjhoward 39:9287c7d59016 92 ModbusRegisterMap[id].max = atof(json_value["max"].get<std::string>().c_str());
davidjhoward 39:9287c7d59016 93 ModbusRegisterMap[id].node = atoi(json_value["node"].get<std::string>().c_str());
davidjhoward 39:9287c7d59016 94 ModbusRegisterMap[id].reg = atoi(json_value["reg"].get<std::string>().c_str());
davidjhoward 39:9287c7d59016 95 ModbusRegisterMap[id].rtype = atoi(json_value["rtype"].get<std::string>().c_str());
davidjhoward 39:9287c7d59016 96 ModbusRegisterMap[id].type = atoi(json_value["type"].get<std::string>().c_str());
davidjhoward 39:9287c7d59016 97 ModbusRegisterMap[id].size = atoi(json_value["size"].get<std::string>().c_str());
davidjhoward 39:9287c7d59016 98 ModbusRegisterMap[id].order = atoi(json_value["order"].get<std::string>().c_str());
davidjhoward 39:9287c7d59016 99 ModbusRegisterMap[id].fmt = json_value["fmt"].get<std::string>().c_str();
davidjhoward 49:0456ee2271be 100 ModbusRegisterMap[id].rfreq = atoi(json_value["rfreq"].get<std::string>().c_str());
davidjhoward 149:950c90425f7c 101 ModbusRegisterMap[id].regType = regType;
davidjhoward 82:f3e495a98877 102 ModbusRegisterMap[id].simulated = false;
davidjhoward 148:ee3cbaafe355 103 ModbusRegisterMap[id].valid = true;
davidjhoward 149:950c90425f7c 104 if( (regType == REG_TYPE_VINPUT) || (regType == REG_TYPE_VOUTPUT) ) {
davidjhoward 149:950c90425f7c 105 ModbusRegisterMap[id].vcmd = json_value["vcmd"].get<std::string>().c_str();
davidjhoward 149:950c90425f7c 106 }
davidjhoward 15:a6ee32969e8e 107 }
davidjhoward 4:c35db3946fd8 108 }
davidjhoward 162:5e8948b8044d 109
davidjhoward 151:9d47fe5ba805 110 osSignalSet(mainThreadId, sig_output_continue);
davidjhoward 31:4b1587034318 111
davidjhoward 39:9287c7d59016 112 // read modbus registers that have been configured.
davidjhoward 39:9287c7d59016 113 while ( true ) {
davidjhoward 39:9287c7d59016 114
davidjhoward 39:9287c7d59016 115 std::map<std::string, ModbusRegister>::iterator iter;
davidjhoward 39:9287c7d59016 116 for (iter = ModbusRegisterMap.begin(); iter != ModbusRegisterMap.end(); ++iter) {
davidjhoward 82:f3e495a98877 117 if( iter->second.simulated == true ) {
davidjhoward 181:e2c982c94e98 118 // printf("\r\nsimulating input=%s, min=%2.2f, max=%2.2f, start_value=%2.2f, up_step=%2.2f, down_step=%2.2f moving_up=%d\r\n",iter->first.c_str(), SimulateInputMap[iter->first].min, SimulateInputMap[iter->first].max, SimulateInputMap[iter->first].start_value, SimulateInputMap[iter->first].up_step, SimulateInputMap[iter->first].down_step, SimulateInputMap[iter->first].moving_up);
davidjhoward 176:492cfa856521 119 if( (SimulateInputMap[iter->first].min == 0) && (SimulateInputMap[iter->first].max == 0) ) {
davidjhoward 176:492cfa856521 120 ModbusRegisterMap[iter->first].float_value = SimulateInputMap[iter->first].start_value;
davidjhoward 181:e2c982c94e98 121 // printf("simulating input=%s, value=%2.2f\r\n",iter->first.c_str(), ModbusRegisterMap[iter->first].float_value);
davidjhoward 176:492cfa856521 122 } else {
davidjhoward 176:492cfa856521 123 if( ModbusRegisterMap[iter->first].float_value >= SimulateInputMap[iter->first].max ) {
davidjhoward 179:a31ea334e2b7 124 SimulateInputMap[iter->first].moving_up = false;
davidjhoward 181:e2c982c94e98 125 // printf("simulating down input=%s, value=%2.2f - %2.2f\r\n",iter->first.c_str(), ModbusRegisterMap[iter->first].float_value, SimulateInputMap[iter->first].down_step);
davidjhoward 176:492cfa856521 126 ModbusRegisterMap[iter->first].float_value = ModbusRegisterMap[iter->first].float_value - SimulateInputMap[iter->first].down_step;
davidjhoward 176:492cfa856521 127 } else if( ModbusRegisterMap[iter->first].float_value <= SimulateInputMap[iter->first].min ) {
davidjhoward 179:a31ea334e2b7 128 SimulateInputMap[iter->first].moving_up = true;
davidjhoward 181:e2c982c94e98 129 // printf("simulating up input=%s, value=%2.2f + %2.2f\r\n",iter->first.c_str(), ModbusRegisterMap[iter->first].float_value, SimulateInputMap[iter->first].up_step);
davidjhoward 176:492cfa856521 130 ModbusRegisterMap[iter->first].float_value = ModbusRegisterMap[iter->first].float_value + SimulateInputMap[iter->first].up_step;
davidjhoward 82:f3e495a98877 131 } else {
davidjhoward 179:a31ea334e2b7 132 if( SimulateInputMap[iter->first].moving_up == true ) {
davidjhoward 181:e2c982c94e98 133 // printf("continue simulate up input=%s, value=%2.2f + %2.2f\r\n",iter->first.c_str(), ModbusRegisterMap[iter->first].float_value, SimulateInputMap[iter->first].up_step);
davidjhoward 150:4db35c8234b4 134 ModbusRegisterMap[iter->first].float_value = ModbusRegisterMap[iter->first].float_value + SimulateInputMap[iter->first].up_step;
davidjhoward 82:f3e495a98877 135 } else {
davidjhoward 181:e2c982c94e98 136 // printf("continue simulate down input=%s, value=%2.2f - %2.2f\r\n",iter->first.c_str(), ModbusRegisterMap[iter->first].float_value, SimulateInputMap[iter->first].down_step);
davidjhoward 176:492cfa856521 137 ModbusRegisterMap[iter->first].float_value = ModbusRegisterMap[iter->first].float_value - SimulateInputMap[iter->first].down_step;
davidjhoward 82:f3e495a98877 138 }
davidjhoward 82:f3e495a98877 139 }
davidjhoward 181:e2c982c94e98 140 // printf("simulating input=%s, value=%2.2f\r\n\r\n",iter->first.c_str(), ModbusRegisterMap[iter->first].float_value);
davidjhoward 82:f3e495a98877 141 }
davidjhoward 82:f3e495a98877 142 continue;
davidjhoward 82:f3e495a98877 143 }
davidjhoward 148:ee3cbaafe355 144
davidjhoward 147:105bcf234f81 145 if( iter->second.node != 0 ) {
davidjhoward 148:ee3cbaafe355 146
davidjhoward 149:950c90425f7c 147 logInfo("Processing Input: tag=%s, node=%d, reg=%d, size=%d, order=%d", iter->first.c_str(), iter->second.node, iter->second.reg, iter->second.size, iter->second.order );
davidjhoward 147:105bcf234f81 148 SendModbusCommand(iter->second.node, iter->second.reg, iter->second.size);
davidjhoward 147:105bcf234f81 149 Thread::wait(30);
davidjhoward 147:105bcf234f81 150 switch( iter->second.type ) {
davidjhoward 147:105bcf234f81 151 case TYPE_32BIT_FLOAT:
davidjhoward 147:105bcf234f81 152 float float_value;
davidjhoward 147:105bcf234f81 153 status = ReadModbus_32bit_float( &float_value, iter->second.order );
davidjhoward 147:105bcf234f81 154 if( status == true ) {
davidjhoward 147:105bcf234f81 155 ModbusRegisterMap[iter->first].float_value = float_value;
davidjhoward 148:ee3cbaafe355 156 ModbusRegisterMap[iter->first].valid = true;
davidjhoward 148:ee3cbaafe355 157 // logInfo("Modbus Tag:%s value=%2.2f", iter->first.c_str(), float_value );
davidjhoward 147:105bcf234f81 158 } else {
davidjhoward 148:ee3cbaafe355 159 ModbusRegisterMap[iter->first].valid = false;
davidjhoward 148:ee3cbaafe355 160 // logInfo("Modbus Read Failed, tag=%s", iter->first.c_str() );
davidjhoward 147:105bcf234f81 161 }
davidjhoward 147:105bcf234f81 162 break;
davidjhoward 147:105bcf234f81 163 case TYPE_32BIT_INT:
davidjhoward 147:105bcf234f81 164 break;
davidjhoward 147:105bcf234f81 165 case TYPE_32BIT_UINT:
davidjhoward 147:105bcf234f81 166 break;
davidjhoward 147:105bcf234f81 167 case TYPE_16BIT_INT:
davidjhoward 147:105bcf234f81 168 break;
davidjhoward 147:105bcf234f81 169 case TYPE_16BIT_UINT:
davidjhoward 147:105bcf234f81 170 break;
davidjhoward 147:105bcf234f81 171 default:
davidjhoward 147:105bcf234f81 172 break;
davidjhoward 147:105bcf234f81 173 }
davidjhoward 39:9287c7d59016 174 }
davidjhoward 82:f3e495a98877 175
davidjhoward 149:950c90425f7c 176 if( (iter->second.node == 0) && (iter->second.regType == REG_TYPE_OUTPUT) ) {
davidjhoward 148:ee3cbaafe355 177 // logInfo("processing PIN output=%s, reg=%d, value=%d",iter->first.c_str(), ModbusRegisterMap[iter->first].reg, (bool)ModbusRegisterMap[iter->first].float_value);
davidjhoward 148:ee3cbaafe355 178 if( ModbusRegisterMap[iter->first].reg == 1 ) {
davidjhoward 148:ee3cbaafe355 179 dout1 = (bool)ModbusRegisterMap[iter->first].float_value;
davidjhoward 148:ee3cbaafe355 180 } else {
davidjhoward 148:ee3cbaafe355 181 dout2 = (bool)ModbusRegisterMap[iter->first].float_value;
davidjhoward 148:ee3cbaafe355 182 }
davidjhoward 148:ee3cbaafe355 183 }
davidjhoward 149:950c90425f7c 184 if( (iter->second.node == 0) && (iter->second.regType == REG_TYPE_INPUT) ) {
davidjhoward 148:ee3cbaafe355 185 // logInfo("processing PIN input=%s, reg=%d, value=%d",iter->first.c_str(), ModbusRegisterMap[iter->first].reg, (bool)ModbusRegisterMap[iter->first].float_value);
davidjhoward 148:ee3cbaafe355 186 if( ModbusRegisterMap[iter->first].reg == 1 ) {
davidjhoward 148:ee3cbaafe355 187 // digital input
davidjhoward 148:ee3cbaafe355 188 ModbusRegisterMap[iter->first].float_value = (float)flow_switch.read();
davidjhoward 148:ee3cbaafe355 189 } else {
davidjhoward 148:ee3cbaafe355 190 ModbusRegisterMap[iter->first].float_value = (float)dinp2.read();
davidjhoward 81:d45bfa16953a 191 }
davidjhoward 81:d45bfa16953a 192 }
davidjhoward 39:9287c7d59016 193 }
davidjhoward 39:9287c7d59016 194
davidjhoward 149:950c90425f7c 195 // now update all of the virtual registers
davidjhoward 149:950c90425f7c 196 for (iter = ModbusRegisterMap.begin(); iter != ModbusRegisterMap.end(); ++iter) {
davidjhoward 149:950c90425f7c 197 if( (ModbusRegisterMap[iter->first].regType != REG_TYPE_VINPUT) && (ModbusRegisterMap[iter->first].regType != REG_TYPE_VOUTPUT) ) {
davidjhoward 149:950c90425f7c 198 continue;
davidjhoward 149:950c90425f7c 199 }
davidjhoward 149:950c90425f7c 200 logInfo("Processing Virtual Input: vcmd:%s, tag:%s, opl:%s, opr:%s, op:%s, constant:%.4f", iter->second.vcmd.c_str(), iter->first.c_str(),
davidjhoward 149:950c90425f7c 201 VirtualCommandMap[iter->second.vcmd].opl.c_str(),
davidjhoward 149:950c90425f7c 202 VirtualCommandMap[iter->second.vcmd].opr.c_str(),
davidjhoward 149:950c90425f7c 203 VirtualCommandMap[iter->second.vcmd].op.c_str(),
davidjhoward 149:950c90425f7c 204 VirtualCommandMap[iter->second.vcmd].constant
davidjhoward 149:950c90425f7c 205 );
davidjhoward 149:950c90425f7c 206 switch( VirtualCommandMap[iter->second.vcmd].op.c_str()[0] ) {
davidjhoward 149:950c90425f7c 207 case '=':
davidjhoward 149:950c90425f7c 208 ModbusRegisterMap[iter->first].float_value = ModbusRegisterMap[VirtualCommandMap[iter->second.vcmd].opl].float_value;
davidjhoward 149:950c90425f7c 209 logInfo("Setting tag=%s, equal to (value=%2.2f)", iter->first.c_str(),
jmarkel44 169:c503848823aa 210 //VirtualCommandMap[iter->second.vcmd].opl.c_str(),
davidjhoward 149:950c90425f7c 211 ModbusRegisterMap[VirtualCommandMap[iter->second.vcmd].opl].float_value
davidjhoward 149:950c90425f7c 212 );
davidjhoward 149:950c90425f7c 213 break;
davidjhoward 149:950c90425f7c 214 case '*':
davidjhoward 162:5e8948b8044d 215 ModbusRegisterMap[iter->first].float_value =
davidjhoward 162:5e8948b8044d 216 ModbusRegisterMap[VirtualCommandMap[iter->second.vcmd].opl].float_value *
davidjhoward 162:5e8948b8044d 217 ModbusRegisterMap[VirtualCommandMap[iter->second.vcmd].opr].float_value;
davidjhoward 162:5e8948b8044d 218 logInfo("Setting tag=%s, equal to (%2.2f*%2.2f) = %2.2f", iter->first.c_str(),
jmarkel44 169:c503848823aa 219 //VirtualCommandMap[iter->second.vcmd].opl.c_str(),
davidjhoward 162:5e8948b8044d 220 ModbusRegisterMap[VirtualCommandMap[iter->second.vcmd].opl].float_value,
davidjhoward 162:5e8948b8044d 221 ModbusRegisterMap[VirtualCommandMap[iter->second.vcmd].opr].float_value,
davidjhoward 162:5e8948b8044d 222 ModbusRegisterMap[iter->first].float_value
davidjhoward 162:5e8948b8044d 223 );
davidjhoward 149:950c90425f7c 224 case '/':
davidjhoward 162:5e8948b8044d 225 if( ModbusRegisterMap[VirtualCommandMap[iter->second.vcmd].opr].float_value != 0 ) {
davidjhoward 162:5e8948b8044d 226 ModbusRegisterMap[iter->first].float_value =
davidjhoward 162:5e8948b8044d 227 ModbusRegisterMap[VirtualCommandMap[iter->second.vcmd].opl].float_value /
davidjhoward 162:5e8948b8044d 228 ModbusRegisterMap[VirtualCommandMap[iter->second.vcmd].opr].float_value;
davidjhoward 162:5e8948b8044d 229 logInfo("Setting tag=%s, equal to (%2.2f/%2.2f) = %2.2f", iter->first.c_str(),
jmarkel44 169:c503848823aa 230 //VirtualCommandMap[iter->second.vcmd].opl.c_str(),
davidjhoward 162:5e8948b8044d 231 ModbusRegisterMap[VirtualCommandMap[iter->second.vcmd].opl].float_value,
davidjhoward 162:5e8948b8044d 232 ModbusRegisterMap[VirtualCommandMap[iter->second.vcmd].opr].float_value,
davidjhoward 162:5e8948b8044d 233 ModbusRegisterMap[iter->first].float_value
davidjhoward 162:5e8948b8044d 234 );
davidjhoward 162:5e8948b8044d 235 } else {
davidjhoward 162:5e8948b8044d 236 logInfo("NOT DOING DIVIDE BY ZERO");
davidjhoward 162:5e8948b8044d 237 }
davidjhoward 162:5e8948b8044d 238 break;
davidjhoward 149:950c90425f7c 239 case '+':
davidjhoward 149:950c90425f7c 240 case '-':
davidjhoward 149:950c90425f7c 241 default:
davidjhoward 149:950c90425f7c 242 break;
davidjhoward 149:950c90425f7c 243 }
davidjhoward 149:950c90425f7c 244 }
davidjhoward 149:950c90425f7c 245
davidjhoward 39:9287c7d59016 246 osEvent evt = ModbusMasterMailBox.get(50);
davidjhoward 39:9287c7d59016 247 if (evt.status == osEventMail) {
davidjhoward 39:9287c7d59016 248 Message_t *mail = (Message_t*)evt.value.p;
davidjhoward 39:9287c7d59016 249 logInfo("Mail Received: Action: %d, New Input File: %s", mail->action, mail->controlFile);
davidjhoward 39:9287c7d59016 250 ModbusMasterMailBox.free(mail);
davidjhoward 39:9287c7d59016 251 ModbusRegisterMap.clear();
davidjhoward 39:9287c7d59016 252 break;
davidjhoward 39:9287c7d59016 253 }
davidjhoward 57:5f18ae91c7c7 254 Thread::wait(5000);
davidjhoward 31:4b1587034318 255 }
jmarkel44 0:65cfa4873284 256 }
davidjhoward 4:c35db3946fd8 257 }
davidjhoward 4:c35db3946fd8 258
davidjhoward 4:c35db3946fd8 259
davidjhoward 4:c35db3946fd8 260 volatile char modbus_buffer_char;
davidjhoward 4:c35db3946fd8 261 volatile bool modbus_interrupt_complete = false;
davidjhoward 4:c35db3946fd8 262
davidjhoward 4:c35db3946fd8 263 uint8_t modbus_input_buffer[SIZE_MB_BUFFER];// 1byte address + 1 byte function +1 byte number of regs + 12 bytes of data + 2 bytes for crc response frame from slave
davidjhoward 4:c35db3946fd8 264 volatile uint8_t modbus_input_buffer_counter = 0;
davidjhoward 4:c35db3946fd8 265
davidjhoward 4:c35db3946fd8 266 //Frame crc calucation
davidjhoward 4:c35db3946fd8 267 uint16_t modbus_crc(uint8_t* buf, int len)
davidjhoward 4:c35db3946fd8 268 {
davidjhoward 4:c35db3946fd8 269 uint16_t crc = 0xFFFF;
davidjhoward 4:c35db3946fd8 270
davidjhoward 4:c35db3946fd8 271 for (int pos = 0; pos < len; pos++) {
davidjhoward 4:c35db3946fd8 272 crc ^= (uint16_t)buf[pos]; // XOR byte into least sig. byte of crc
davidjhoward 4:c35db3946fd8 273
davidjhoward 4:c35db3946fd8 274 for (int i = 8; i != 0; i--) {
davidjhoward 4:c35db3946fd8 275 // Loop over each bit
davidjhoward 4:c35db3946fd8 276 if ((crc & 0x0001) != 0) {
davidjhoward 4:c35db3946fd8 277 // If the LSB is set
davidjhoward 4:c35db3946fd8 278 crc >>= 1; // Shift right and XOR 0xA001
davidjhoward 4:c35db3946fd8 279 crc ^= 0xA001;
davidjhoward 4:c35db3946fd8 280 } else // Else LSB is not set
davidjhoward 4:c35db3946fd8 281 crc >>= 1; // Just shift right
davidjhoward 4:c35db3946fd8 282 }
davidjhoward 4:c35db3946fd8 283 }
davidjhoward 4:c35db3946fd8 284 // Note, this number has low and high bytes swapped, so use it accordingly (or swap bytes)
davidjhoward 4:c35db3946fd8 285 return crc;
davidjhoward 4:c35db3946fd8 286 }
davidjhoward 4:c35db3946fd8 287
davidjhoward 4:c35db3946fd8 288 RawSerial modbus(PA_2, PA_3);
davidjhoward 57:5f18ae91c7c7 289 DigitalOut mod_de(PB_0);
davidjhoward 57:5f18ae91c7c7 290 DigitalOut mod_re(PB_1);
davidjhoward 4:c35db3946fd8 291
davidjhoward 4:c35db3946fd8 292 void modbus_init( uint16_t baudRate )
davidjhoward 4:c35db3946fd8 293 {
davidjhoward 4:c35db3946fd8 294 modbus.baud(baudRate);
davidjhoward 4:c35db3946fd8 295 modbus.attach(&modbus_recv, RawSerial::RxIrq);
davidjhoward 4:c35db3946fd8 296 }
davidjhoward 4:c35db3946fd8 297
davidjhoward 4:c35db3946fd8 298 //call back when character goes into RX buffer for RS485 modbus
davidjhoward 4:c35db3946fd8 299 void modbus_recv()
davidjhoward 4:c35db3946fd8 300 {
davidjhoward 4:c35db3946fd8 301
davidjhoward 4:c35db3946fd8 302 if (modbus.readable()) {
davidjhoward 4:c35db3946fd8 303 modbus_buffer_char = modbus.getc();
davidjhoward 4:c35db3946fd8 304 if (modbus_input_buffer_counter == 0 && modbus_buffer_char == 0x00) {
davidjhoward 4:c35db3946fd8 305 modbus_input_buffer_counter = 0;
davidjhoward 4:c35db3946fd8 306 } else {
davidjhoward 4:c35db3946fd8 307 modbus_input_buffer[modbus_input_buffer_counter] = modbus_buffer_char;
davidjhoward 4:c35db3946fd8 308 modbus_input_buffer_counter++;
davidjhoward 4:c35db3946fd8 309 }
davidjhoward 4:c35db3946fd8 310 }
davidjhoward 4:c35db3946fd8 311
davidjhoward 4:c35db3946fd8 312 if (modbus_input_buffer_counter > modbus_input_buffer[2] + 4) {
davidjhoward 4:c35db3946fd8 313 modbus_interrupt_complete = true;
davidjhoward 4:c35db3946fd8 314 modbus_input_buffer_counter = 0;
davidjhoward 4:c35db3946fd8 315 }
davidjhoward 4:c35db3946fd8 316 }
davidjhoward 4:c35db3946fd8 317
davidjhoward 4:c35db3946fd8 318 // Read modbus master frame
davidjhoward 9:ef0ca2f8a8a6 319 void SendModbusCommand(uint8_t slave_address, uint16_t firstReg, uint16_t noRegs)
davidjhoward 4:c35db3946fd8 320 {
davidjhoward 4:c35db3946fd8 321 uint8_t L1V[8] = {slave_address, 0x04, 0x00, 0x02, 0x00, 0x02, 0xD1, 0x16};
davidjhoward 4:c35db3946fd8 322
davidjhoward 4:c35db3946fd8 323 L1V[2] = (firstReg >> 8) & 0xFF;
davidjhoward 4:c35db3946fd8 324 L1V[3] = firstReg & 0xFF;
davidjhoward 4:c35db3946fd8 325 L1V[4] = (noRegs >> 8) & 0xFF;
davidjhoward 4:c35db3946fd8 326 L1V[5] = noRegs & 0xFF;
davidjhoward 4:c35db3946fd8 327 L1V[6] = modbus_crc(L1V,6) & 0xFF;
davidjhoward 4:c35db3946fd8 328 L1V[7] = (modbus_crc(L1V,6)>>8) & 0xFF;
davidjhoward 4:c35db3946fd8 329
davidjhoward 57:5f18ae91c7c7 330 mod_de = 1;
davidjhoward 57:5f18ae91c7c7 331 mod_re = 1;
davidjhoward 57:5f18ae91c7c7 332 Thread::wait(1);
davidjhoward 4:c35db3946fd8 333 for (uint8_t i = 0; i < 8; i++)
davidjhoward 4:c35db3946fd8 334 modbus.putc(L1V[i]);
davidjhoward 4:c35db3946fd8 335
davidjhoward 57:5f18ae91c7c7 336 Thread::wait(2);
davidjhoward 57:5f18ae91c7c7 337 mod_de = 0;
davidjhoward 57:5f18ae91c7c7 338 mod_re = 0;
davidjhoward 4:c35db3946fd8 339
davidjhoward 4:c35db3946fd8 340 }
davidjhoward 4:c35db3946fd8 341
davidjhoward 4:c35db3946fd8 342 bool mbInterruptComplete()
davidjhoward 4:c35db3946fd8 343 {
davidjhoward 4:c35db3946fd8 344 if (modbus_interrupt_complete) {
davidjhoward 4:c35db3946fd8 345 modbus_interrupt_complete = false;
davidjhoward 4:c35db3946fd8 346 return true;
davidjhoward 4:c35db3946fd8 347 } else {
davidjhoward 4:c35db3946fd8 348 return false;
davidjhoward 4:c35db3946fd8 349 }
davidjhoward 4:c35db3946fd8 350 }
davidjhoward 4:c35db3946fd8 351
davidjhoward 15:a6ee32969e8e 352 bool ReadModbus_32bit_float( float *float_value, int order )
davidjhoward 4:c35db3946fd8 353 {
davidjhoward 15:a6ee32969e8e 354 MR_REGISTER_32_BIT_FLOAT value;
davidjhoward 31:4b1587034318 355
davidjhoward 4:c35db3946fd8 356 if (mbInterruptComplete() != true ) {
davidjhoward 4:c35db3946fd8 357 return false;
davidjhoward 4:c35db3946fd8 358 }
davidjhoward 4:c35db3946fd8 359
davidjhoward 15:a6ee32969e8e 360 switch( order ) {
davidjhoward 31:4b1587034318 361 case BigEndian:
davidjhoward 15:a6ee32969e8e 362 value.b.lo_lo = modbus_input_buffer[6];
davidjhoward 15:a6ee32969e8e 363 value.b.lo_hi = modbus_input_buffer[5];
davidjhoward 15:a6ee32969e8e 364 value.b.hi_lo = modbus_input_buffer[4];
davidjhoward 15:a6ee32969e8e 365 value.b.hi_hi = modbus_input_buffer[3];
davidjhoward 15:a6ee32969e8e 366 break;
davidjhoward 15:a6ee32969e8e 367 case BigEndianReverseWord:
davidjhoward 15:a6ee32969e8e 368 value.b.lo_lo = modbus_input_buffer[4];
davidjhoward 15:a6ee32969e8e 369 value.b.lo_hi = modbus_input_buffer[3];
davidjhoward 15:a6ee32969e8e 370 value.b.hi_lo = modbus_input_buffer[6];
davidjhoward 15:a6ee32969e8e 371 value.b.hi_hi = modbus_input_buffer[5];
davidjhoward 15:a6ee32969e8e 372 break;
davidjhoward 15:a6ee32969e8e 373 default:
davidjhoward 15:a6ee32969e8e 374 return false;
davidjhoward 15:a6ee32969e8e 375 }
davidjhoward 15:a6ee32969e8e 376 *float_value = value.f;
davidjhoward 4:c35db3946fd8 377 return true;
davidjhoward 4:c35db3946fd8 378 }