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Moved a bunch of stuff, starting to read registers

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TraYali 2024-03-13 00:18:10 +01:00
parent 65b4644fe4
commit 974ae853b9
17 changed files with 47 additions and 55 deletions
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43
inc/libmodbus/modbus-rtu.h Normal file
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/*
* Copyright © Stéphane Raimbault <stephane.raimbault@gmail.com>
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#ifndef MODBUS_RTU_H
#define MODBUS_RTU_H
#include "modbus.h"
MODBUS_BEGIN_DECLS
/* Modbus_Application_Protocol_V1_1b.pdf Chapter 4 Section 1 Page 5
* RS232 / RS485 ADU = 253 bytes + slave (1 byte) + CRC (2 bytes) = 256 bytes
*/
#define MODBUS_RTU_MAX_ADU_LENGTH 256
MODBUS_API modbus_t *
modbus_new_rtu(const char *device, int baud, char parity, int data_bit, int stop_bit);
#define MODBUS_RTU_RS232 0
#define MODBUS_RTU_RS485 1
MODBUS_API int modbus_rtu_set_serial_mode(modbus_t *ctx, int mode);
MODBUS_API int modbus_rtu_get_serial_mode(modbus_t *ctx);
#define MODBUS_RTU_RTS_NONE 0
#define MODBUS_RTU_RTS_UP 1
#define MODBUS_RTU_RTS_DOWN 2
MODBUS_API int modbus_rtu_set_rts(modbus_t *ctx, int mode);
MODBUS_API int modbus_rtu_get_rts(modbus_t *ctx);
MODBUS_API int modbus_rtu_set_custom_rts(modbus_t *ctx,
void (*set_rts)(modbus_t *ctx, int on));
MODBUS_API int modbus_rtu_set_rts_delay(modbus_t *ctx, int us);
MODBUS_API int modbus_rtu_get_rts_delay(modbus_t *ctx);
MODBUS_END_DECLS
#endif /* MODBUS_RTU_H */