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Ass register class for modbus comms, without hw addresses yet

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This commit is contained in:
jaakkoiot 2022-10-15 15:15:12 +03:00
parent 80bde0bdb5
commit 0857a26f0b
2 changed files with 46 additions and 0 deletions
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19
Modbus/inc/ModbusRegister.h Normal file
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#ifndef MODBUSREGISTER_H_
#define MODBUSREGISTER_H_
#include "ModbusLeader.h"
class ModbusRegister {
public:
ModbusRegister(ModbusMaster *master, int address, bool holdingRegister = true);
ModbusRegister(const ModbusRegister &) = delete;
virtual ~ModbusRegister();
int read();
void write(int value);
private:
ModbusMaster *m;
int addr;
bool hr;
};
#endif /* MODBUSREGISTER_H_ */

27
Modbus/src/ModbusRegister.cpp Normal file
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#include "ModbusRegister.h"
ModbusRegister::ModbusRegister(ModbusMaster *master, int address, bool holdingRegister)
:m(master), addr(address), hr(holdingRegister) {
// TODO Auto-generated constructor stub
}
ModbusRegister::~ModbusRegister() {
// TODO Auto-generated destructor stub
}
int ModbusRegister::read() {
uint8_t result = hr ? m->readHoldingRegisters(addr, 1) : m->readInputRegisters(addr, 1) ;
// check if we were able to read
if (result == m->ku8MBSuccess) {
return m->getResponseBuffer(0);
}
return -1;
}
void ModbusRegister::write(int value)
{
// write only if not
if(hr) m->writeSingleRegister(addr, value); // not checking if write succeeds
}