97 lines
1.9 KiB
C
97 lines
1.9 KiB
C
#ifndef _PROTOCOL_H_
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#define _PROTOCOL_H_
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#include "stdint.h"
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#define PROTOCOL_BUF_MAX (512)
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#define PROTOCOL_HEAD (0x527A)
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#define PROTOCOL_FRAME_HEAD_SIZE (7) // 最小帧长：头(2) + 地址(2) + 命令(1) + 长度(2) + CRC(2)
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#define PROTOCOL_FRAME_MIN_SIZE (9) // 最小帧长：头(2) + 地址(2) + 命令(1) + 长度(2) + CRC(2)
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// 错误码定义
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typedef enum {
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PROTOCOL_SUCCESS = 0,
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PROTOCOL_ERR_INVALID_PARAM,
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PROTOCOL_ERR_BUFFER_OVERFLOW,
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PROTOCOL_ERR_CRC
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}protocol_err_t;
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typedef enum
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{
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PROTOCOL_CMD_GET_AD =0x81,
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PROTOCOL_CMD_GET_TP =0x82,
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PROTOCOL_CMD_SET_ID =0x83,
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PROTOCOL_CMD_GET_ID =0x84,
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PROTOCOL_CMD_SET_TP_OFFSET =0x8A,
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PROTOCOL_CMD_GET_TP_OFFSET =0x8B,
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PROTOCOL_CMD_RESET_CHANNEL =0x8F,
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}protocol_cmd_t;
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typedef struct __attribute__((packed)) {
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uint8_t status;
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float value;
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} ch_data_t;
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typedef struct __attribute__((packed)) {
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uint8_t dev_status;
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ch_data_t channels[8];
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uint8_t reserved[7];
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} ad_datas_t;
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typedef struct __attribute__((packed)) {
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uint8_t dev_status;
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ch_data_t channels[8];
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uint8_t reserved[7];
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} tp_datas_t;
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typedef struct __attribute__((packed)) {
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uint8_t id;
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uint8_t reserved[3];
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} id_data_t;
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typedef struct __attribute__((packed)) {
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uint8_t id;
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union{
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uint8_t bytes[4];
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float value;
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}prams;
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} offset_set_data_t,offset_get_data_t;
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typedef struct __attribute__((packed)) {
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uint8_t id;
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}offset_get_param_t;
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extern int protocol_pack_frame(
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uint16_t slave_addr,
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uint8_t command,const
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uint8_t *payload,
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uint16_t payload_len,
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uint8_t *buffer,uint16_t buffer_size,
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uint16_t *packed_len
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);
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extern int protocol_unpack_frame(
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const uint8_t *frame,
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uint16_t frame_len,
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uint16_t *slave_addr,
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uint8_t *command,
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uint8_t *payload,
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uint16_t *payload_len);
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#endif
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