本文摘要：本文章介绍如何使用BUSMASTER V3.2.2软件中的LDF编辑工具制作LDF文件
使用软件：BUSMASTER V3.2.2 -> LDF Editor
软件下载地址：
https://download.csdn.net/download/m0_50669075/85190261
以下叙述的步骤只是为了描述清晰，实际开发可以不按照以下步骤进行。
1. 打开LDF Editor
2. 新建LDF文件，选择LDF版本
3. 配置Master（主机参数）
4. 配置Slaves（从机参数）
5. 添加Diagnostic Frames（诊断帧）
6. 添加Signals（信号）
6.1 信号为组成一帧报文的基本单位，注意自身需求添加
6.2 有的需求里带有错误信号，如若没有则自行添加一个1bit的错误信号，然后在从机节点里选中（每个从机节点必须有一个错误帧）
7. 添加Unconditional Frames（无条件帧），或根据自身要求添加Event Triggered（事件帧）或Sporadic Frames（零星帧）
7.1 帧参数配置
7.2 帧包含信号位置配置
7.3 完成帧的添加
8. 添加Schedule Tables（调度表）
9. 至此已完成了LDF文件的制作，保存文件后，以txt打开LDF文件，会发现有很多内容是缺失的，需要我们自行补充
9.1 Nodes（节点）处内容可能缺失
9.2 configurable_frames（配置帧）处可能缺失
9.3 给一个较为标准的LDF文件以供参考修改
/*---------GLOBAL DEFINITIONS-----------*/
LIN_description_file;
LIN_protocol_version = "2.1";
LIN_language_version = "2.1";
LIN_speed = 19.2 kbps;
/* ----------NODE DEFINITIONS---------- */
Nodes {Master:HU, /* Master node name */5 ms, /* Time base */0.1 ms; /* Jitter */Slaves:PGSSS, /* Slaves node name */DRSSS,RLSSS,RRSSS;
}
/* ----------SIGNAL DEFINITIONS---------- */
Signals {/* Signal_name : Size, Init, Publisher, Subscriber(s) */Switch_P_up : 3, 0x00, HU, PGSSS;Switch_P_down : 3, 0x00, HU, PGSSS;Switch_P_left : 3, 0x00, HU, PGSSS;Switch_P_right : 3, 0x00, HU, PGSSS;Switch_P_ok : 3, 0x00, HU, PGSSS;Switch_P_ok_03 : 1, 0x00, PGSSS, HU;SWR_Backlight_Sta : 8, 0x00, PGSSS, HU;Switch_D_up : 3, 0x00, HU, DRSSS;Switch_D_down : 3, 0x00, HU, DRSSS;Switch_D_left : 3, 0x00, HU, DRSSS;Switch_D_right : 3, 0x00, HU, DRSSS;Switch_D_ok : 3, 0x00, HU, DRSSS;Switch_D_ok_1d : 1, 0x00, DRSSS, HU;SWCL_Backlight_Sta : 8, 0x00, DRSSS, HU;Switch_RL_ok : 3, 0x00, HU, RLSSS;Switch_RL_ok_13 : 1, 0x00, RLSSS, HU;SWCL_Backlight_Sta_13 : 8, 0x00, RLSSS, HU;Switch_RR_ok : 3, 0x00, HU, RRSSS;Switch_RR_ok_19 : 1, 0x00, RRSSS, HU;SWCL_Backlight_Sta_19 : 8, 0x00, RRSSS, HU;
}
/* ----------DIAGNOSTIC SIGNAL DEFINITIONS---------- */
Diagnostic_signals {/* MasterReq Reserved Signals */MasterReqB0 : 8, 0;MasterReqB1 : 8, 0;MasterReqB2 : 8, 0;MasterReqB3 : 8, 0;MasterReqB4 : 8, 0;MasterReqB5 : 8, 0;MasterReqB6 : 8, 0;MasterReqB7 : 8, 0;/* SlaveResp Reserved Signals */SlaveRespB0 : 8, 0;SlaveRespB1 : 8, 0;SlaveRespB2 : 8, 0;SlaveRespB3 : 8, 0;SlaveRespB4 : 8, 0;SlaveRespB5 : 8, 0;SlaveRespB6 : 8, 0;SlaveRespB7 : 8, 0;
}
/* ----------UNCONDITIONAL FRAME DEFINITIONS---------- */
Frames {SmtSwt_SWC_Switch_Passger: 0x02, HU , 3 {Switch_P_up , 0;Switch_P_down , 3;Switch_P_left , 8;Switch_P_right , 11;Switch_P_ok , 16;}SmtSwt_SWC_Switch_Passger_Sta: 0x03, PGSSS , 3 {Switch_P_ok_03 , 0;SWR_Backlight_Sta , 9;}SmtSwt_SWC_Switch_Drive: 0x1C, HU , 3 {Switch_D_up , 0;Switch_D_down , 3;Switch_D_left , 8;Switch_D_right , 11;Switch_D_ok , 16;}SmtSwt_SWC_Switch_Drive_Sta: 0x1D, DRSSS , 3 {Switch_D_ok_1d , 0;SWCL_Backlight_Sta , 9;}SmtSwt_SWC_Switch_RearL: 0x12, HU , 1 {Switch_RL_ok , 0;}SmtSwt_SWC_Switch_RL_Sta: 0x13, RLSSS , 3 {Switch_RL_ok_13 , 0;SWCL_Backlight_Sta_13, 9;}SmtSwt_SWC_Switch_RearR: 0x18, HU , 1 {Switch_RR_ok , 0;}SmtSwt_SWC_Switch_RR_Sta: 0x19, RRSSS , 3 {Switch_RR_ok_19 , 0;SWCL_Backlight_Sta_19, 9;}
}
/* ----------DIAGNOSTIC FRAME DEFINITIONS---------- */
Diagnostic_frames {MasterReq : 0x3C {MasterReqB0 , 0;MasterReqB1 , 8;MasterReqB2 , 16;MasterReqB3 , 24;MasterReqB4 , 32;MasterReqB5 , 40;MasterReqB6 , 48;MasterReqB7 , 56;}SlaveResp : 0x3D {SlaveRespB0 , 0;SlaveRespB1 , 8;SlaveRespB2 , 16;SlaveRespB3 , 24;SlaveRespB4 , 32;SlaveRespB5 , 40;SlaveRespB6 , 48;SlaveRespB7 , 56;}
}
/* ----------NODE ATTRIBUTE DEFINITIONS---------- */
Node_attributes {PGSSS {LIN_protocol = "2.1"; /* Node protocol version */configured_NAD = 0x0A; /* configured NAD of node */initial_NAD = 0x0A; /* initial NAD of node */product_id = 0x0A, 0x0A, 0x0A; /* Product id */response_error = Switch_P_ok_03; /* Response error signal */P2_min = 50 ms; /* P2_min */ST_min = 0 ms; /* ST_min */N_As_timeout = 1000 ms; /* N_As_timeout */N_Cr_timeout = 1000 ms; /* N_As_timeout */configurable_frames {SmtSwt_SWC_Switch_Passger;SmtSwt_SWC_Switch_Passger_Sta;}}DRSSS {LIN_protocol = "2.1"; /* Node protocol version */configured_NAD = 0x09; /* configured NAD of node */initial_NAD = 0x09; /* initial NAD of node */product_id = 0x09, 0x09, 0x09; /* Product id */response_error = Switch_D_ok_1d; /* Response error signal */P2_min = 50 ms; /* P2_min */ST_min = 0 ms; /* ST_min */N_As_timeout = 1000 ms; /* N_As_timeout */N_Cr_timeout = 1000 ms; /* N_As_timeout */configurable_frames {SmtSwt_SWC_Switch_Drive;SmtSwt_SWC_Switch_Drive_Sta;}}RLSSS {LIN_protocol = "2.1"; /* Node protocol version */configured_NAD = 0x0B; /* configured NAD of node */initial_NAD = 0x0B; /* initial NAD of node */product_id = 0x0B, 0x0B, 0x0B; /* Product id */response_error = Switch_RL_ok_13; /* Response error signal */P2_min = 50 ms; /* P2_min */ST_min = 0 ms; /* ST_min */N_As_timeout = 1000 ms; /* N_As_timeout */N_Cr_timeout = 1000 ms; /* N_As_timeout */configurable_frames {SmtSwt_SWC_Switch_RearL;SmtSwt_SWC_Switch_RL_Sta;}}RRSSS {LIN_protocol = "2.1"; /* Node protocol version */configured_NAD = 0x0C; /* configured NAD of node */initial_NAD = 0x0C; /* initial NAD of node */product_id = 0x0C, 0x0C, 0x0C; /* Product id */response_error = Switch_RR_ok_19; /* Response error signal */P2_min = 50 ms; /* P2_min */ST_min = 0 ms; /* ST_min */N_As_timeout = 1000 ms; /* N_As_timeout */N_Cr_timeout = 1000 ms; /* N_As_timeout */configurable_frames {SmtSwt_SWC_Switch_RearR;SmtSwt_SWC_Switch_RR_Sta;}}
}
/* ----------SCHEDULE TABLE DEFINITIONS---------- */
Schedule_tables {NormalTable {SmtSwt_SWC_Switch_Passger delay 50 ms;SmtSwt_SWC_Switch_Passger_Sta delay 50 ms;SmtSwt_SWC_Switch_Drive delay 50 ms;SmtSwt_SWC_Switch_Drive_Sta delay 50 ms;SmtSwt_SWC_Switch_RearL delay 50 ms;SmtSwt_SWC_Switch_RL_Sta delay 50 ms;SmtSwt_SWC_Switch_RearR delay 50 ms;SmtSwt_SWC_Switch_RR_Sta delay 50 ms;}
}10. 手动补充完成后重新用LDF Editor打开，成功打开即为制作完成
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