2019-09-20 更新

1、初始化仓库

LICENSE.txt

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+That's all there is to it!

inc/dlt645.h

@@ -0,0 +1,45 @@
+#ifndef _DLT645_H
+#define _DLT645_H
+
+#include <stdint.h>
+
+#define DL645_MAX_READ_LEN 200 //读数据的最大数据长度
+#define DL645_MAX_WRITE_LEN 50 //写数据的最大数据长度
+
+// port setting
+#define DLT645_DEFAULT_RESPONSE_TIMEOUT 500 //500ms
+#define MAX_DEVICE_NAME_LEN 10              //最大设备名长度
+
+#define dlt_malloc rt_malloc
+#define dlt_free rt_free
+
+//DLT645 环境结构体
+typedef struct
+{
+    uint8_t addr[6];    //从机地址
+    uint8_t debug;      //调试标志
+    uint16_t timeout;   //接收超时
+    uint16_t nfds;      //串口文件句柄
+    
+    /*以下为底层操作接口，需用户根据自己的硬件平台实现*/
+    int (*write)(int nfds, uint8_t *buf, uint16_t len);     //底层写函数
+    int (*read)(int nfds, uint8_t *msg, uint16_t timeout);  //底层读函数
+    int (*flush)(void);                                     //底层清缓存函数
+} dlt645_t;
+
+typedef enum
+{
+    DLT645_2007 = 1,
+    DLT645_1997
+} dlt645_protocal;
+
+extern void dlt645_set_addr(dlt645_t *ctx, uint8_t *addr);
+extern void dlt645_set_nfds(dlt645_t *ctx, int nfds);
+extern int dlt645_connect(dlt645_t *ctx);
+extern void dlt645_free(dlt645_t *ctx);
+extern int dlt645_set_debug(dlt645_t *ctx, int flag);
+extern int dlt645_set_byte_timeout(dlt645_t *ctx, uint32_t to_sec, uint32_t to_usec);
+extern int dlt645_set_response_timeout(dlt645_t *ctx, uint16_t timeout);
+extern int dlt645_read_data(dlt645_t *ctx, uint32_t addr, uint32_t code, uint8_t *read_data, dlt645_protocal protocal);
+extern int dlt645_write_data(dlt645_t *ctx, uint32_t addr, uint32_t code, uint8_t *write_data, uint8_t write_len);
+#endif

inc/dlt645_1997.h

@@ -0,0 +1,12 @@
+#ifndef __DLT645_1997_H
+#define __DLT645_1997_H
+
+#include "dlt645.h"
+
+//基于 DLT645 2007 协议读取数据
+int dlt645_1997_read_data(dlt645_t *ctx,uint32_t addr,uint32_t code,uint8_t *read_data);
+//基于 DLT645 2007 协议校验数据
+int dlt645_1997_recv_check(uint8_t *msg, int len, uint32_t addr, uint32_t code);
+
+
+#endif /* __DLT645_1997_H */

inc/dlt645_1997_private.h

@@ -0,0 +1,35 @@
+#ifndef __DLT645_1997_PRIVATE_H
+#define __DLT645_1997_PRIVATE_H
+
+#define DL645_1997_RD_LEN 14 //读取数据命令的长度
+#define DL645_1997_C_RD 0x01    //读数据操作码
+#define DL645_1997_C_WR 0x04    //写数据操作码
+
+// DLT645 1997 数据标识
+#define DIC_B611 0xB611 //A相电压
+#define DIC_B612 0xB612 //B相电压
+#define DIC_B613 0xB613 //C相电压
+#define DIC_B691 0xB691 //AB线电压
+#define DIC_B692 0xB692 //BC线电压
+#define DIC_B693 0xB693 //CA线电压
+
+#define DIC_B621 0xB621 //A相电流
+#define DIC_B622 0xB622 //B相电流
+#define DIC_B623 0xB623 //C相电流
+
+#define DIC_B630 0xB630 //总有功功率
+#define DIC_B631 0xB631 //A相有功功率
+#define DIC_B632 0xB632 //B相有功功率
+#define DIC_B633 0xB633 //C相有功功率
+
+#define DIC_B640 0xB640 //总无功功率
+#define DIC_B641 0xB641 //A相无功功率
+#define DIC_B642 0xB642 //B相无功功率
+#define DIC_B643 0xB643 //C相无功功率
+
+#define DIC_B660 0xB660 //总视在功率
+#define DIC_B661 0xB661 //A相视在功率
+#define DIC_B662 0xB662 //B相视在功率
+#define DIC_B663 0xB663 //C相视在功率
+
+#endif /* __DLT645_1997_PRIVATE_H */

inc/dlt645_2007.h

@@ -0,0 +1,11 @@
+#ifndef __DLT645_2007_H
+#define __DLT645_2007_H
+
+#include "dlt645.h"
+
+//基于 DLT645 2007 协议读取数据
+int dlt645_2007_read_data(dlt645_t *ctx,uint32_t addr,uint32_t code,uint8_t *read_data);
+//基于 DLT645 2007 协议校验数据
+int dlt645_2007_recv_check(uint8_t *msg, int len, uint32_t addr, uint32_t code);
+
+#endif /* __DLT645_2007_H */

inc/dlt645_2007_private.h

@@ -0,0 +1,87 @@
+#ifndef __DLT645_2007_PRIVATE_H
+#define __DLT645_2007_PRIVATE_H
+
+
+#define DL645_2007_RD_LEN 16 //读取数据命令的长度
+#define DL645_2007_C_RD 0x11 //读数据操作码
+#define DL645_2007_C_WR 0x14 //写数据操作码
+
+/*DLT 645 2007数据标识*/
+#define DIC_0 0x0         //组合有功总电能
+#define DIC_100 0x100     //组合有功费率1电能
+#define DIC_200 0x200     //组合有功费率2电能
+#define DIC_300 0x300     //组合有功费率3电能
+#define DIC_400 0x400     //组合有功费率4电能
+#define DIC_10000 0x10000 //正向有功总电能
+#define DIC_10100 0x10100 //正向有功费率1电能
+#define DIC_10200 0x10200 //正向有功费率2电能
+#define DIC_10300 0x10300 //正向有功费率3电能
+#define DIC_10400 0x10400 //正向有功费率4电能
+#define DIC_20000 0x20000 //反向有功总电能
+#define DIC_20100 0x20100 //反向有功费率1电能
+#define DIC_20200 0x20200 //反向有功费率2电能
+#define DIC_20300 0x20300 //反向有功费率3电能
+#define DIC_20400 0x20400 //反向有功费率4电能
+#define DIC_30000 0x30000 //组合无功1总电能
+#define DIC_40000 0x40000 //组合无功2总电能
+#define DIC_50000 0x50000 //第一象限无功电能
+#define DIC_60000 0x60000 //第二象限无功电能
+#define DIC_70000 0x70000 //第三象限无功电能
+#define DIC_80000 0x80000 //第四象限无功电能
+#define DIC_90000 0x90000 //正向视在总电能
+
+#define DIC_2010100 0x2010100 //A相电压
+#define DIC_2010200 0x2010200 //B相电压
+#define DIC_2010300 0x2010300 //C相电压
+#define DIC_2020100 0x2020100 //A相电流
+#define DIC_2020200 0x2020200 //B相电流
+#define DIC_2020300 0x2020300 //C相电流
+#define DIC_2030000 0x2030000 //总有功功率
+#define DIC_2030100 0x2030100 //A相有功功率
+#define DIC_2030200 0x2030200 //B相有功功率
+#define DIC_2030300 0x2030300 //C相有功功率
+#define DIC_2040000 0x2040000 //总无功功率
+#define DIC_2040100 0x2040100 //A相无功功率
+#define DIC_2040200 0x2040200 //B相无功功率
+#define DIC_2040300 0x2040300 //C相无功功率
+#define DIC_2050000 0x2050000 //总视在功率
+#define DIC_2050100 0x2050100 //A相视在功率
+#define DIC_2050200 0x2050200 //B相视在功率
+#define DIC_2050300 0x2050300 //C相视在功率
+#define DIC_2060000 0x2060000 //总功率因素
+#define DIC_2060100 0x2060100 //A相功率因素
+#define DIC_2060200 0x2060200 //B相功率因素
+#define DIC_2060300 0x2060300 //C相功率因素
+#define DIC_20C0100 0x20C0100 //AB线电压
+#define DIC_20C0200 0x20C0200 //BC线电压
+#define DIC_20C0300 0x20C0300 //CA线电压
+#define DIC_2800002 0x2800002 //频率
+#define DIC_4000101 0x4000101 //年月日星期
+#define DIC_4000102 0x4000102 //时分秒
+#define DIC_5060001 0x5060001 //上一次日冻结时间
+#define DIC_5060101 0x5060101 //上一次日冻结正向有功电能
+
+#define DIC_30C0000 0x30C0000 //过流总次数，总时间
+#define DIC_30C0101 0x30C0101 //上一次A相过流记录
+
+#define DIC_3300100 0x3300100 //电表清零总次数
+#define DIC_3300101 0x3300101 //电表清零记录
+
+#define DIC_4000501 0x4000501
+#define DIC_4000502 0x4000502
+#define DIC_4000503 0x4000503
+#define DIC_4000504 0x4000504
+#define DIC_4000505 0x4000505
+#define DIC_4000506 0x4000506
+#define DIC_4000507 0x4000507
+
+#define DIC_4000403 0x4000403 //资产管理编码
+
+#define DIC_4000701 0x4000701 //信号强度
+
+#define DIC_4000702 0x4000702 //版本号
+
+#define DIC_7000001 0x7000001 //master_api_key
+#define DIC_7000002 0x7000002 //device_id
+
+#endif /* __DLT645_2007_PRIVATE_H */

inc/dlt645_private.h

@@ -0,0 +1,75 @@
+#ifndef _DLT645_PRIVATE_H
+#define _DLT645_PRIVATE_H
+
+#include "dlt645.h"
+
+#ifdef DLT645_DEBUG
+#define DLT645_LOG kprintf
+#else
+#define DLT645_LOG(...)
+#endif
+
+#define DL645_START_CODE 0x68
+#define DL645_STOP_CODE 0x16
+
+#define DL645_PREMBLE_ENABLE 0 //前导码使能标记
+#define DL645_PREMBLE 0xFE     //前导码
+
+#define DL645_ADDR_LEN 6    //设备地址长度
+#define DL645_CONTROL_POS 8 //控制码位置
+#define DL645_LEN_POS 9     //长度位置
+#define DL645_DATA_POS 10   //数据位置
+#define DL645_WR_LEN 50     //写入数据命令的长度
+#define DL645_RESP_LEN 60   //读取数据命令的长度
+
+
+
+#define C_CODE_MASK 0x1f
+#define C_CODE_NULL 0x00
+#define C_CODE_BRC 0x08 //广播校时
+#define C_CODE_RD 0x11  //读数据
+#define C_CODE_RDM 0x12 //读后续数据
+#define C_CODE_RDA 0x13 //读通信地址
+#define C_CODE_WR 0x14  //写数据
+#define C_CODE_WRA 0x15 //写通信地址
+#define C_CODE_DJ 0x16  //冻结
+#define C_CODE_BR 0x17  //更改通信速率
+#define C_CODE_PD 0x18  //修改密码
+#define C_CODE_XL 0x19  //最大需量清零
+#define C_CODE_DB 0x1a  //电表清零
+#define C_CODE_MSG 0x1b //事件清零
+#define C_TD_MASK 0x80
+#define C_TD_POS 7    //传送方向位置
+#define C_TD_MASTER 0 //主站发出的命令帧
+#define C_TD_SLAVE 1  //从站发出的应答帧
+#define C_ACK_MASK 0x40
+#define C_ACK_POS 6 //从站应答位置
+#define C_ACK_OK 0  //从站应答正确
+#define C_ACK_ERR 1 //从站应答错误
+#define C_FU_MASK 0x20
+#define C_FU_POS 5
+#define C_FU_NONE 0 //无后续帧 follow-up frame
+#define C_FU_EXT 1  //有后续帧
+
+#define DL645_ERR_RATE 0x40  //费率数超
+#define DL645_ERR_DAY 0x20   //日时段数超
+#define DL645_ERR_YEAR 0x10  //年时区数超
+#define DL645_ERR_BR 0x08    //通信速率不能更改
+#define DL645_ERR_PD 0x04    //密码错误/未授权
+#define DL645_ERR_DATA 0x02  //无请求数据
+#define DL645_ERR_OTHER 0x01 //其他错误
+
+
+//645 公共校验
+extern int dlt645_common_check(uint8_t *msg, int len, uint32_t addr);
+//645 和校验
+extern int _crc(uint8_t *msg, int len);
+//645 调用底层接口接收数据
+extern int dlt645_receive_msg(dlt645_t *ctx, uint8_t *msg, uint32_t addr, uint32_t code, dlt645_protocal protocal);
+//645 调用底层接口发送
+extern int dlt645_send_msg(dlt645_t *ctx, uint8_t *msg, int len);
+//十进制转BCD码
+extern uint32_t dec2bcd(uint32_t val);
+//将接收到的dlt645数据包中的数据转化为整数
+extern int data_package_translate_to_int(uint8_t *read_data, uint16_t len);
+#endif

src/dlt645.c

@@ -0,0 +1,153 @@
+#include "dlt645_private.h"
+#include "dlt645_1997.h"
+#include "dlt645_2007.h"
+#include "string.h"
+
+/**
+ * Name:    dlt645_receive_msg
+ * Brief:   645协议调用底层接收数据
+ * Input:
+ *  @ctx:       645环境句柄
+ *  @msg:       数据包存储地址
+ *  @addr:      从站地址
+ *  @code:      数据标识   
+ *  @protocal:  645协议类型  
+ * Output:  接收成功：0，接收失败：-1
+ */
+int dlt645_receive_msg(dlt645_t *ctx, uint8_t *msg, uint32_t addr, uint32_t code, dlt645_protocal protocal)
+{
+    int msg_len = ctx->read(ctx->nfds, msg, ctx->timeout);
+
+    if (protocal == DLT645_1997)
+    {
+        return dlt645_1997_recv_check(msg, msg_len, addr, code);
+    }
+    else if (protocal == DLT645_2007)
+    {
+        return dlt645_2007_recv_check(msg, msg_len, addr, code);
+    }
+    else
+    {
+        return -1;
+    }
+}
+
+/**
+ * Name:    dlt645_send_msg
+ * Brief:   645协议调用底层发送数据
+ * Input:
+ *  @ctx:       645环境句柄
+ *  @msg:       发送的数据首地址
+ *  @len:       发送长度 
+ * Output:  实际发送的字节数，错误返回-1
+ */
+int dlt645_send_msg(dlt645_t *ctx, uint8_t *msg, int len)
+{
+    msg[0] = DL645_START_CODE;
+    msg[DL645_ADDR_LEN + 1] = DL645_START_CODE;
+    msg[len - 1] = DL645_STOP_CODE;
+    msg[len - 2] = _crc(msg, len - 2);
+
+    return ctx->write(ctx->nfds, msg, len);
+}
+
+/**
+ * Name:    dlt645_set_addr
+ * Brief:   设置从站地址
+ * Input:
+ *  @ctx:       645环境句柄
+ *  @addr:      从站地址
+ * Output:  None
+ */
+void dlt645_set_addr(dlt645_t *ctx, uint8_t *addr)
+{
+    memcpy(ctx->addr, addr, DL645_ADDR_LEN);
+}
+
+/**
+ * Name:    dlt645_set_nfds
+ * Brief:   设置串口文件句柄
+ * Input:
+ *  @ctx:       645环境句柄
+ *  @nfds:      文件句柄
+ * Output:  None
+ */
+void dlt645_set_nfds(dlt645_t *ctx, int nfds)
+{
+    ctx->nfds = nfds;
+}
+
+/**
+ * Name:    dlt645_set_debug
+ * Brief:   设置调试模式
+ * Input:
+ *  @ctx:       645环境句柄
+ *  @flag:      调试标志
+ * Output:  None
+ */
+int dlt645_set_debug(dlt645_t *ctx, int flag)
+{
+    ctx->debug = flag;
+    return 0;
+}
+
+/**
+ * Name:    dlt645_get_response_timeout
+ * Brief:   获取645采集超时时间
+ * Input:
+ *  @ctx:       645环境句柄
+ *  @timeout:   超时时间存储地址（单位：毫秒）
+ * Output:  None
+ */
+int dlt645_get_response_timeout(dlt645_t *ctx, uint16_t *timeout)
+{
+    *timeout = ctx->timeout;
+    return 0;
+}
+
+/**
+ * Name:    dlt645_set_response_timeout
+ * Brief:   设置645采集超时时间
+ * Input:
+ *  @ctx:       645环境句柄
+ *  @timeout:   超时时间（单位：毫秒）
+ * Output:  None
+ */
+int dlt645_set_response_timeout(dlt645_t *ctx, uint16_t timeout)
+{
+    ctx->timeout = timeout;
+    return 0;
+}
+
+/**
+ * Name:    dlt645_read_data（用户调用）
+ * Brief:   根据645协议类型读取数据
+ * Input:
+ *  @ctx:           645环境句柄
+ *  @addr:          从站地址
+ *  @code:          标识符
+ *  @read_data:     读取数据存储地址
+ *  @protocal:      协议类型
+ * Output:  成功返回数据长度，失败返回-1
+ */
+int dlt645_read_data(dlt645_t *ctx,
+                     uint32_t addr,
+                     uint32_t code,
+                     uint8_t *read_data,
+                     dlt645_protocal protocal)
+{
+    switch (protocal)
+    {
+    case DLT645_1997:
+        return dlt645_1997_read_data(ctx, addr, code, read_data);
+        break;
+    case DLT645_2007:
+        return dlt645_2007_read_data(ctx, addr, code, read_data);
+        break;
+    default:
+        DLT645_LOG("unrecognized protocal!\r\n");
+        break;
+    }
+    return -1;
+}
+

src/dlt645_1997.c

@@ -0,0 +1,150 @@
+/*************************************************
+ Copyright (c) 2019, JiangSu Sfere.
+ All rights reserved.
+ File name:     dlt645_1997.c
+ Description:   DLT645 1997版本
+ History:
+ 1. Version:    
+    Date:       2019-09-19
+    Author:     wangjunjie
+    Modify:     
+*************************************************/
+#include "dlt645_private.h"
+#include "dlt645_1997_private.h"
+#include "string.h"
+
+/**
+ * Name:    dlt645_1997_recv_check
+ * Brief:   DLT645-1997 数据校验
+ * Input:
+ *  @msg:   校验数据包
+ *  @len:   数据包长度
+ *  @addr:  从站地址
+ *  @code:  操作码
+ * Output:  校验成功：0 ，失败 -1
+ */
+int dlt645_1997_recv_check(uint8_t *msg, int len, uint32_t addr, uint32_t code)
+{
+    if (dlt645_common_check(msg, len, addr) < 0)
+    {
+        return -1;
+    }
+    if (msg[DL645_CONTROL_POS] == 0x84)
+        return 0;
+
+    uint8_t *code_buf = (uint8_t *)&code;
+
+    for (uint8_t i = 0; i < 2; i++)
+    {
+        code_buf[i] += 0x33;
+    }
+
+    if (*((uint16_t *)(msg + DL645_DATA_POS)) != code)
+        return -1;
+
+    return 0;
+}
+
+/**
+ * Name:    dlt645_1997_parsing_data
+ * Brief:   DLT645-1997 数据包解析
+ * Input:
+ *  @code:          标识符
+ *  @read_data:     数据包指针
+ *  @len:           数据包长度
+ *  @real_val:      数据存储地址
+ * Output:  数据包长度
+ */
+static int dlt645_1997_parsing_data(uint32_t code, uint8_t *read_data, uint16_t len, uint8_t *real_val)
+{
+    switch (code)
+    {
+    case DIC_B611:
+    case DIC_B612:
+    case DIC_B613:
+    case DIC_B691:
+    case DIC_B692:
+    case DIC_B693:
+    {
+        int ival = data_package_translate_to_int(read_data,2);
+        float fval = ival / 1.0;
+        memcpy(real_val, &fval, 4);
+        break;
+    }
+    case DIC_B621:
+    case DIC_B622:
+    case DIC_B623:
+    {
+        int ival = data_package_translate_to_int(read_data,2);
+        float fval = ival / 100.00;
+        memcpy(real_val, &fval, 4);
+
+        break;
+    }
+    case DIC_B630:
+    case DIC_B631:
+    case DIC_B632:
+    case DIC_B633:
+    {
+        int ival = data_package_translate_to_int(read_data,3);
+        float fval = ival / 10000.0;
+        memcpy(real_val, &fval, 4);
+    }
+    default:
+    {
+        for (uint16_t i = 0; i < len; i++)
+        {
+            real_val[i] = ((read_data[i] - 0x33) & 0x0f) + ((read_data[i] - 0x33) >> 4) * 10;
+        }
+        break;
+    }
+    }
+    return len;
+}
+
+/**
+ * Name:    dlt645_1997_read_data
+ * Brief:   DLT645-1997 数据读取
+ * Input:
+ *  @ctx:           645句柄
+ *  @addr:          从站地址
+ *  @code:          数据标识
+ *  @read_data:     数据存储地址
+ * Output:  成功返回数据长度，失败返回-1
+ */
+int dlt645_1997_read_data(dlt645_t *ctx,
+                          uint32_t addr,
+                          uint32_t code,
+                          uint8_t *read_data)
+{
+    uint8_t send_buf[DL645_1997_RD_LEN];
+    uint8_t read_buf[DL645_RESP_LEN];
+
+    memset(read_buf, 0, sizeof(read_buf));
+    memset(send_buf, 0, sizeof(send_buf));
+
+    uint32_t dev_addr = dec2bcd(addr);
+
+    memcpy(send_buf + 1, &dev_addr, DL645_ADDR_LEN - 2);
+    send_buf[DL645_CONTROL_POS] = DL645_1997_C_RD;
+    send_buf[DL645_LEN_POS] = 2;
+
+    uint8_t send_code[2] = {0};
+    send_code[0] = (code & 0xff) + 0x33;
+    send_code[1] = ((code >> 8) & 0xff) + 0x33;
+    memcpy(send_buf + DL645_DATA_POS, send_code, 2);
+
+    if (dlt645_send_msg(ctx, send_buf, DL645_1997_RD_LEN) < 0)
+    {
+        DLT645_LOG("send data error!\n");
+        return -1;
+    }
+
+    if (dlt645_receive_msg(ctx, read_buf, dev_addr, code, DLT645_1997) < 0)
+    {
+        DLT645_LOG("receive msg error!\n");
+        return -1;
+    }
+
+    return dlt645_1997_parsing_data(code, read_buf + DL645_DATA_POS + 2, read_buf[DL645_LEN_POS] - 2, read_data);
+}

src/dlt645_2007.c

@@ -0,0 +1,269 @@
+/*************************************************
+ Copyright (c) 2019, JiangSu Sfere.
+ All rights reserved.
+ File name:     dlt645_2007.c
+ Description:   DLT645 2007版本
+ History:
+ 1. Version:    
+    Date:       2019-09-19
+    Author:     wangjunjie
+    Modify:     
+*************************************************/
+#include "dlt645_private.h"
+#include "dlt645_2007_private.h"
+#include "string.h"
+
+/**
+ * Name:    dlt645_2007_recv_check
+ * Brief:   DLT645-2007 数据校验
+ * Input:
+ *  @msg:   校验数据包
+ *  @len:   数据包长度
+ *  @addr:  从站地址
+ *  @code:  操作码
+ * Output:  None
+ */
+int dlt645_2007_recv_check(uint8_t *msg, int len, uint32_t addr, uint32_t code)
+{
+    if (dlt645_common_check(msg, len, addr) < 0)
+    {
+        return -1;
+    }
+    if (msg[DL645_CONTROL_POS] == 0x94)
+        return 0;
+
+    uint8_t *code_buf = (uint8_t *)&code;
+
+    for (uint8_t i = 0; i < 4; i++)
+    {
+        code_buf[i] += 0x33;
+    }
+
+    if (*((uint32_t *)(msg + DL645_DATA_POS)) != code)
+        return -1;
+
+    return 0;
+}
+
+/**
+ * Name:    dlt645_2007_parsing_data
+ * Brief:   DLT645-2007 数据包解析
+ * Input:
+ *  @code:          标识符
+ *  @read_data:     数据包指针
+ *  @len:           数据包长度
+ *  @real_val:      数据存储地址
+ * Output:  数据包长度
+ */
+int dlt645_2007_parsing_data(uint32_t code, uint8_t *read_data, uint16_t len, uint8_t *real_val)
+{
+    switch (code)
+    {
+    case DIC_0:
+    case DIC_100:
+    case DIC_200:
+    case DIC_300:
+    case DIC_400:
+    case DIC_10000:
+    case DIC_10100:
+    case DIC_10200:
+    case DIC_10300:
+    case DIC_10400:
+    case DIC_20000:
+    case DIC_20100:
+    case DIC_20200:
+    case DIC_20300:
+    case DIC_20400:
+    case DIC_30000:
+    case DIC_40000:
+    case DIC_50000:
+    case DIC_60000:
+    case DIC_70000:
+    case DIC_80000:
+    case DIC_90000:
+    {
+        int ival = data_package_translate_to_int(read_data,4);
+        float fval = ival / 100.00;
+        memcpy(real_val, &fval, 4);
+
+        break;
+    }
+    case DIC_2010100:
+    case DIC_2010200:
+    case DIC_2010300:
+    case DIC_20C0100:
+    case DIC_20C0200:
+    case DIC_20C0300:
+    {
+        int ival = data_package_translate_to_int(read_data,2);
+        float fval = ival / 10.0;
+        memcpy(real_val, &fval, 4);
+
+        break;
+    }
+    case DIC_2020100:
+    case DIC_2020200:
+    case DIC_2020300:
+    {
+        int ival = data_package_translate_to_int(read_data,3);
+        float fval = ival / 1000.0;
+        memcpy(real_val, &fval, 4);
+
+        break;
+    }
+    case DIC_2030000:
+    case DIC_2030100:
+    case DIC_2030200:
+    case DIC_2030300:
+    case DIC_2040000:
+    case DIC_2040100:
+    case DIC_2040200:
+    case DIC_2040300:
+    case DIC_2050000:
+    case DIC_2050100:
+    case DIC_2050200:
+    case DIC_2050300:
+    {
+        int ival = data_package_translate_to_int(read_data,3);
+
+        float fval = ival / 10000.00;
+        memcpy(real_val, &fval, 4);
+        break;
+    }
+    case DIC_2060000:
+    case DIC_2060100:
+    case DIC_2060200:
+    case DIC_2060300:
+    {
+        int ival = data_package_translate_to_int(read_data,2);
+        float fval = ival / 1000.0;
+        memcpy(real_val, &fval, 4);
+
+        break;
+    }
+    case DIC_4000403:
+    case DIC_5060101:
+    case DIC_7000001:
+    case DIC_7000002:
+        for (uint16_t i = 0; i < len; i++)
+        {
+            real_val[i] = read_data[i] - 0x33;
+        }
+        break;
+    default:
+        for (uint16_t i = 0; i < len; i++)
+        {
+            real_val[i] = ((read_data[i] - 0x33) & 0x0f) + ((read_data[i] - 0x33) >> 4) * 10;
+        }
+        break;
+    }
+    return len;
+}
+
+/**
+ * Name:    dlt645_2007_read_data
+ * Brief:   DLT645-2007 数据读取
+ * Input:
+ *  @ctx:           645句柄
+ *  @addr:          从站地址
+ *  @code:          数据标识
+ *  @read_data:     数据存储地址
+ * Output:  None
+ */
+int dlt645_2007_read_data(dlt645_t *ctx,
+                          uint32_t addr,
+                          uint32_t code,
+                          uint8_t *read_data)
+{
+    uint8_t send_buf[DL645_2007_RD_LEN];
+    uint8_t read_buf[DL645_RESP_LEN];
+
+    memset(read_buf, 0, sizeof(read_buf));
+    memset(send_buf, 0, sizeof(send_buf));
+
+    uint32_t dev_addr = dec2bcd(addr);
+
+    memcpy(send_buf + 1, &dev_addr, DL645_ADDR_LEN - 2);
+
+    send_buf[DL645_CONTROL_POS] = DL645_2007_C_RD;
+    send_buf[DL645_LEN_POS] = 4;
+
+    uint8_t send_code[4] = {0};
+    send_code[0] = (code & 0xff) + 0x33;
+    send_code[1] = ((code >> 8) & 0xff) + 0x33;
+    send_code[2] = ((code >> 16) & 0xff) + 0x33;
+    send_code[3] = ((code >> 24) & 0xff) + 0x33;
+
+    memcpy(send_buf + DL645_DATA_POS, send_code, 4);
+    if (dlt645_send_msg(ctx, send_buf, DL645_2007_RD_LEN) < 0)
+    {
+        DLT645_LOG("send data error!\n");
+        return -1;
+    }
+
+    if (dlt645_receive_msg(ctx, read_buf, dev_addr, code, DLT645_2007) < 0)
+    {
+        DLT645_LOG("receive msg error!\n");
+        return -1;
+    }
+
+
+    return dlt645_2007_parsing_data(code, read_buf + DL645_DATA_POS + 4, read_buf[DL645_LEN_POS] - 4, read_data);
+}
+
+/**
+ * Name:    dlt645_write_data
+ * Brief:   DLT645-2007 数据写入
+ * Input:
+ *  @ctx:           645句柄
+ *  @addr:          从站地址
+ *  @code:          数据标识
+ *  @write_data:    写入数据的指针
+ *  @write_len:     写入长度
+ * Output:  None
+ */
+int dlt645_write_data(dlt645_t *ctx,
+                      uint32_t addr,
+                      uint32_t code,
+                      uint8_t *write_data,
+                      uint8_t write_len)
+{
+    uint8_t send_buf[DL645_WR_LEN];
+    uint8_t read_buf[DL645_RESP_LEN];
+
+    memset(read_buf, 0, sizeof(read_buf));
+    memset(send_buf, 0, sizeof(send_buf));
+
+    uint32_t dev_addr = dec2bcd(addr);
+
+    memcpy(send_buf + 1, &dev_addr, DL645_ADDR_LEN - 2);
+
+    send_buf[DL645_CONTROL_POS] = DL645_2007_C_WR;
+    send_buf[DL645_LEN_POS] = 12 + write_len;
+
+    uint8_t send_code[4] = {0};
+    send_code[0] = (code & 0xff) + 0x33;
+    send_code[1] = ((code >> 8) & 0xff) + 0x33;
+    send_code[2] = ((code >> 16) & 0xff) + 0x33;
+    send_code[3] = ((code >> 24) & 0xff) + 0x33;
+
+    for (uint8_t i = 0; i < write_len; i++)
+    {
+        write_data[i] += 0x33;
+    }
+
+    memcpy(send_buf + DL645_DATA_POS, send_code, 4);
+    memcpy(send_buf + DL645_DATA_POS + 12, write_data, write_len);
+    if (dlt645_send_msg(ctx, send_buf, 24 + write_len) < 0)
+    {
+        DLT645_LOG("send data error!\n");
+        return -1;
+    }
+
+    if (dlt645_receive_msg(ctx, read_buf, dev_addr, code, DLT645_2007) < 0)
+    {
+        DLT645_LOG("receive msg error!\n");
+        return -1;
+    }
+    return 0;
+}

src/dlt645_data.c

@@ -0,0 +1,197 @@
+/*************************************************
+ Copyright (c) 2019, JiangSu Sfere.
+ All rights reserved.
+ File name:     dlt645_data.c
+ Description:   DLT645 数据处理源文件
+ History:
+ 1. Version:    
+    Date:       2019-09-20
+    Author:     wangjunjie
+    Modify:     
+*************************************************/
+#include "dlt645_private.h"
+#include <math.h>
+
+//字节位置枚举类型
+typedef enum
+{
+    BYTE_RESET = 0,   //重置
+    BYTE_LOW_ADDRESS, //低位
+    BYTE_HIGH_ADDRESS //高位
+} byte_part;
+
+/**
+ * Name:    _crc
+ * Brief:   crc和校验
+ * Input:
+ *  @msg:   校验数据包
+ *  @len:   数据包长度
+ * Output:  校验值
+ */
+int _crc(uint8_t *msg, int len)
+{
+    uint8_t crc = 0;
+    while (len--)
+    {
+        crc += *msg++;
+    }
+    return crc;
+}
+
+/**
+ * Name:    dlt645_common_check
+ * Brief:   645协议接收数据公共部分校验
+ * Input:
+ *  @msg:   校验数据包
+ *  @len:   数据包长度
+ *  @addr:  从站地址
+ * Output:  校验成功：0，校验失败：-1
+ */
+int dlt645_common_check(uint8_t *msg, int len, uint32_t addr)
+{
+    //数据包长度校验
+    if (len < 7)
+    {
+        return -1;
+    }
+    //数据帧标志校验
+    if (msg[0] != DL645_START_CODE ||
+        msg[DL645_ADDR_LEN + 1] != DL645_START_CODE ||
+        msg[len - 1] != DL645_STOP_CODE)
+    {
+        DLT645_LOG("check code error!\n");
+        return -1;
+    }
+    //CRC校验
+    uint8_t crc = _crc(msg, len - 2);
+    if (crc != msg[len - 2])
+    {
+        DLT645_LOG("check crc error!\n");
+        return -1;
+    }
+    //控制码主从校验
+    if ((msg[DL645_CONTROL_POS] & C_TD_MASK) == (C_TD_MASTER << C_TD_POS))
+    {
+        DLT645_LOG("check control direction error!\n");
+        return -1;
+    }
+    //控制码应答校验
+    if ((msg[DL645_CONTROL_POS] & C_ACK_MASK) == (C_ACK_ERR << C_ACK_POS))
+    {
+        DLT645_LOG("check ACK error!\n");
+        return msg[len - 3];
+    }
+    //从站地址校验
+    if (*((uint32_t *)(msg + 1)) != addr)
+    {
+        return -1;
+    }
+
+    return 0;
+}
+
+/**
+ * Name:    dec2bcd
+ * Brief:   十进制转BCD码
+ * Input:
+ *  @val:   十进制值
+ * Output:  BCD码值
+ */
+uint32_t dec2bcd(uint32_t val)
+{
+    uint32_t data;
+    if (val < 100)
+    {
+        uint8_t byte0 = val % 10;
+        uint8_t byte1 = val / 10;
+        data = (byte1 << 4) + byte0;
+    }
+    else if (val < 10000)
+    {
+        uint8_t byte0 = val % 10;
+        uint8_t byte1 = (val / 10) % 10;
+        uint8_t byte2 = (val / 100) % 10;
+        uint8_t byte3 = (val / 1000) % 10;
+        data = (byte3 << 12) +
+               (byte2 << 8) +
+               (byte1 << 4) + byte0;
+    }
+    else if (val < 1000000)
+    {
+        uint8_t byte0 = val % 10;
+        uint8_t byte1 = (val / 10) % 10;
+        uint8_t byte2 = (val / 100) % 10;
+        uint8_t byte3 = (val / 1000) % 10;
+        uint8_t byte4 = (val / 10000) % 10;
+        uint8_t byte5 = (val / 100000) % 10;
+        data = (byte5 << 20) +
+               (byte4 << 16) +
+               (byte3 << 12) +
+               (byte2 << 8) +
+               (byte1 << 4) + byte0;
+    }
+    else if (val < 100000000)
+    {
+        uint8_t byte0 = val % 10;
+        uint8_t byte1 = (val / 10) % 10;
+        uint8_t byte2 = (val / 100) % 10;
+        uint8_t byte3 = (val / 1000) % 10;
+        uint8_t byte4 = (val / 10000) % 10;
+        uint8_t byte5 = (val / 100000) % 10;
+        uint8_t byte6 = (val / 1000000) % 10;
+        uint8_t byte7 = (val / 10000000) % 10;
+        data = (byte7 << 28) +
+               (byte6 << 24) +
+               (byte5 << 20) +
+               (byte4 << 16) +
+               (byte3 << 12) +
+               (byte2 << 8) +
+               (byte1 << 4) + byte0;
+    }
+    return data;
+}
+
+/**
+ * Name:    data_package_translate_to_int
+ * Brief:   将接收到的dlt645数据包中的数据转化为整数
+ * Input:
+ *  @read_data: 数据首地址
+ *  @len:       数据长度
+ * Output:  转化后的整数
+ */
+int data_package_translate_to_int(uint8_t *read_data, uint16_t len)
+{
+    //权值
+    uint8_t number_weight = 0;
+    //当前数组下标索引
+    uint8_t current_index = 0;
+    //当前解析字节位
+    uint8_t current_byte_part = BYTE_RESET;
+    //当前整数值
+    int i_value = 0;
+
+    while (len--)
+    {
+        current_byte_part = BYTE_LOW_ADDRESS;
+        do
+        {
+            switch (current_byte_part)
+            {
+            //当前处理字节低位
+            case BYTE_LOW_ADDRESS:
+                i_value += ((read_data[current_index] - 0x33) & 0x0f) * pow(10, number_weight);
+                number_weight++;
+                current_byte_part = BYTE_HIGH_ADDRESS;
+                break;
+            //当前处理字节高位
+            case BYTE_HIGH_ADDRESS:
+                i_value += ((read_data[current_index] - 0x33) >> 4) * pow(10, number_weight);
+                number_weight++;
+                current_byte_part = BYTE_RESET;
+                break;
+            }
+        } while (current_byte_part != BYTE_RESET);
+        current_index ++;
+    }
+    return i_value;
+}