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First version of RS485 + MODBUS Driver

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This commit is contained in:
Emanuele Trabattoni
2025-06-26 11:52:09 +02:00
parent 17f5a1dfe5
commit b54c0e5018
4 changed files with 195 additions and 395 deletions
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32
lib/RS485/WS_RS485.h
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@@ -46,23 +46,28 @@ namespace drivers
{
static const uint8_t RESP_HEADER_SIZE = 3;
static const uint8_t RESP_CRC_SIZE = 1;
typedef union {
uint8_t hi;
uint8_t lo;
uint16_t reg16;
} reg_bytes_t;
static const uint8_t RESP_CRC_SIZE = 2;
typedef struct
{
uint8_t device;
uint8_t func;
reg_bytes_t reg;
reg_bytes_t qty;
uint16_t crc = 0xFF;
uint16_t reg;
uint16_t data;
} req_t;
typedef struct
{
uint8_t device;
uint8_t func;
uint16_t reg;
uint16_t qty;
uint8_t bytes;
} req_multi_t;
typedef req_t resp_t;
typedef uint16_t crc_t;
public:
MODBUS(const uint32_t baud, const SerialConfig conf);
@@ -85,16 +90,19 @@ namespace drivers
const bool writeRegister(const uint8_t device, const uint16_t reg, const uint16_t value);
// Func 0x0F
const bool writeCoils(const uint8_t device, const uint16_t reg, const std::vector<bool> &coils);
const bool writeCoils(const uint8_t device, const uint16_t coils, const std::vector<bool> &values);
// Func 0x10
const bool writeRegisters(const uint8_t device, const uint16_t reg, const std::vector<uint16_t> &values);
private:
CRC16 m_crc;
const std::vector<uint8_t> buildRequest(const uint8_t device, const uint8_t func, const uint16_t reg, const uint16_t qty);
const std::vector<uint8_t> singleRequest(const uint8_t device, const uint8_t func, const uint16_t reg, const uint16_t data);
const std::vector<uint8_t> multiRequest(const uint8_t device, const uint8_t func, const uint16_t reg, const uint16_t qty, const std::vector<uint16_t> &data);
const bool readBinary(const uint8_t func, const uint8_t device, const uint16_t reg, const uint16_t bits, std::vector<bool> &out);
const bool readInteger(const uint8_t func, const uint8_t device, const uint16_t reg, const uint16_t num, std::vector<uint16_t> &out);
const bool writeBinary(const uint8_t func, const uint8_t device, const uint16_t reg, const uint16_t bits, const std::vector<bool> &in);
const bool writeInteger(const uint8_t func, const uint8_t device, const uint16_t reg, const uint16_t num, const std::vector<uint16_t> &in);
const bool verifyCrc(const std::vector<uint8_t> &data);
};
}