📄 datafax.lst
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1001 2 UARTBUF[i]=(byte)Cnt;
1002 2 Cnt>>=8;
1003 2 }
1004 1 UARTBUF[0]=0X02;//读取文件命令
1005 1 SPI_Read_Point=0;
1006 1 SPI_Write_Point=0;
1007 1 Set_SPI_Master;
1008 1 SPI_SS=0;
1009 1 Delayms(2);
1010 1 for(i=0;i<37;i++) SPI_Send_Byte(UARTBUF[i]);
1011 1 Set_SPI_Slave;
1012 1 temp_bit=SPI_SS;
1013 1 SPI_TI=0;
1014 1
1015 1 }
1016 //-------------------------------------------------
1017 // 向接收方发送请求
1018 // 入口参数：request-----请求
1019 // length------数据长度
1020 //--------------------------------------------------
1021 void Send_Request(byte request,ulong length)
1022 {
1023 1 byte i=0;
1024 1 word j=0;
1025 1 switch(request)
1026 1 {
1027 2 case CREATE_FILE://创建文件
1028 2 for(i=0;i<37;i++) UARTBUF[i]=0x00;
1029 2 UARTBUF[0]=0X04;
1030 2 for(i=5;i<31;i++)
1031 2 {
1032 3 UARTBUF[i]=File_Info[i-5];
1033 3 }
1034 2 for(i=0;i<37;i++) Com_Send_Byte(UARTBUF[i]);
1035 2 break;
1036 2 case OPEN_FILE://打开文件
1037 2 for(i=0;i<37;i++) UARTBUF[i]=0x00;
1038 2 UARTBUF[0]=0X01;
1039 2 for(i=5;i<16;i++)
1040 2 {
1041 3 UARTBUF[i]=File_Info[i-5];
1042 3 }
1043 2 for(i=0;i<37;i++) Com_Send_Byte(UARTBUF[i]);
1044 2 case FILE_SEEK://文件定位
C51 COMPILER V7.09 DATAFAX 03/22/2005 01:42:11 PAGE 18
1045 2 for(i=0;i<37;i++) UARTBUF[i]=0x00;
1046 2 for(i=4;i>0;i--)
1047 2 {
1048 3 UARTBUF[i]=(byte)length;
1049 3 length>>=8;
1050 3 }
1051 2 UARTBUF[0]=0X03;
1052 2 for(i=0;i<37;i++) Com_Send_Byte(UARTBUF[i]);
1053 2 break;
1054 2 case WRITE_FILE://写文件
1055 2 for(i=0;i<37;i++) UARTBUF[i]=0x00;
1056 2 for(i=4;i>0;i--)
1057 2 {
1058 3 UARTBUF[i]=(byte)length;
1059 3 length>>=8;
1060 3 }
1061 2 UARTBUF[0]=0X05;
1062 2 for(i=0;i<37;i++) Com_Send_Byte(UARTBUF[i]);
1063 2 break;
1064 2 case FILE_EOF://End Of File
1065 2 for(i=0;i<37;i++) UARTBUF[i]=0x00;
1066 2 UARTBUF[0]=0X0F;
1067 2 for(i=0;i<37;i++) Com_Send_Byte(UARTBUF[i]);
1068 2 break;
1069 2 default:
1070 2 break;
1071 2 }
1072 1
1073 1 }
1074 //--------------------------------------------------
1075 // 获取接收送方的响应
1076 //-------------------------------------------------
1077 bit Get_Response()
1078 {
1079 1 byte i=0;
1080 1 Com_Read_Point=0;
1081 1 Com_Write_Point=0;
1082 1 Cnt_Long_1ms=0;
1083 1 while(Cnt_Long_1ms<_10S)
1084 1 {
1085 2 if(Flag_1ms)
1086 2 {
1087 3 Flag_1ms=false;
1088 3 Capture_KEY_Event();
1089 3 }
1090 2 if(Key_Down.Active)
1091 2 {
1092 3 Key_Down.Active=false;
1093 3 if(Key_Down.Byte_data==KB_EXIT)
1094 3 {
1095 4 Do_Cancel();
1096 4 Flag_Exit=true;
1097 4 Flag_KB_Enable=true;
1098 4 return false;
1099 4 }
1100 3 }
1101 2 //if( Com_Read_Point!=Com_Write_Point) break;
1102 2 if( Com_Write_Point>=4) break;
1103 2 }
1104 1 if(Com_Recv_Buf[0]==0x00)
1105 1 {
1106 2 Delayms(200);
C51 COMPILER V7.09 DATAFAX 03/22/2005 01:42:11 PAGE 19
1107 2 Delayms(200);
1108 2 return false;
1109 2 }
1110 1 else return true;
1111 1
1112 1 }
1113
1114 //-------------------------------------------------
1115 // 发送文件过程：
1116 // Open File
1117 // Seek File
1118 // Send file first block ( block_size=Com_Buf_len-5)
1119 // Send file next block ( block_size=Com_Buf_len-5)
1120 // Send file next ......
1121 // Send last block ( blocksize=fileSize-n*blocksize)
1122 //---------------------------------------------------
1123 void Do_Send_File()
1124 {
1125 1 ulong Block_Size=Recv_Buf_Len-37;
1126 1 ulong filesize=File_Size;
1127 1 ulong temp_point=0;
1128 1 ulong temp_size=0;
1129 1 word i=0;
1130 1 byte j=0;
1131 1 File_Point=0;
1132 1 Flag_Exit=false;
1133 1 if(MODEM_Status!=MODEM_CONNECTED_STATE)
1134 1 {
1135 2 Error_Display("MODEM DISCONNECT");
1136 2 return;
1137 2 }
1138 1 if(File_Name[0]==0x00)
1139 1 {
1140 2 Error_Display("NO FILE SELECTED");
1141 2 return;
1142 2 }
1143 1 Send_Finished.Active=false;
1144 1 Send_Request(CREATE_FILE,0);
1145 1 for(i=0;i<37;i++) Com_Recv_Buf[i]=0x00;
1146 1 Com_Read_Point=0;
1147 1 Com_Write_Point=0;
1148 1 LCD_Show_Data(2,20,"Get create Response ");
1149 1 if(!Get_Response())
1150 1 {
1151 2 j++;
1152 2 if(j>3)
1153 2 {
1154 3 Error_Display("NO RESPONSE");
1155 3 return;
1156 3 }
1157 2 Send_Request(CREATE_FILE,0);
1158 2 for(i=0;i<37;i++) Com_Recv_Buf[i]=0x00;
1159 2 Com_Read_Point=0;
1160 2 Com_Write_Point=0;
1161 2
1162 2 }
1163 1 if(Open_File())
1164 1 {
1165 2 i=0;
1166 2 Send_Request(OPEN_FILE,0);
1167 2 for(i=0;i<37;i++) Com_Recv_Buf[i]=0x00;
1168 2 Com_Read_Point=0;
C51 COMPILER V7.09 DATAFAX 03/22/2005 01:42:11 PAGE 20
1169 2 Com_Write_Point=0;
1170 2 LCD_Show_Data(2,20,"Get open Response ");
1171 2 if(!Get_Response())
1172 2 {
1173 3 j++;
1174 3 if(j>3)
1175 3 {
1176 4 Error_Display("NO RESPONSE");
1177 4 return;
1178 4 }
1179 3 for(i=0;i<37;i++) Com_Recv_Buf[i]=0x00;
1180 3 Com_Read_Point=0;
1181 3 Com_Write_Point=0;
1182 3
1183 3 }
1184 2 while(filesize>0)
1185 2 {
1186 3 if(Flag_1ms)
1187 3 {
1188 4 Flag_1ms=false;
1189 4 Capture_KEY_Event();
1190 4 }
1191 3 if(Key_Down.Active)
1192 3 {
1193 4 Key_Down.Active=false;
1194 4 if(Key_Down.Byte_data==KB_EXIT)
1195 4 {
1196 5 Do_Cancel();
1197 5 Flag_Exit=true;
1198 5 Flag_KB_Enable=true;
1199 5 }
1200 4 }
1201 3 if(Flag_Exit) return;
1202 3 LCD_Show_Data(2,20,"FILE SEEKING..");
1203 3 if(File_Seek(File_Point))
1204 3 {
1205 4 temp_point=File_Point;
1206 4 temp_size=filesize;
1207 4 Send_Request(FILE_SEEK,File_Point);
1208 4 for(i=0;i<37;i++) Com_Recv_Buf[i]=0x00;
1209 4 Com_Read_Point=0;
1210 4 Com_Write_Point=0;
1211 4 LCD_Show_Data(2,20,"Get seek Response ");
1212 4 if(Get_Response())
1213 4 {
1214 5 if (filesize<=Block_Size) Block_Size=filesize; //last Block;
1215 5 LCD_Show_Data(2,20,"READING DATA..");
1216 5 Read_File(Block_Size);
1217 5 SPI_Read_Point=0;
1218 5 SPI_Write_Point=0;
1219 5 Cnt_Long_1ms=0;
1220 5 while(Cnt_Long_1ms<_5S)
1221 5 {
1222 6 if(Flag_1ms)
1223 6 {
1224 7 Flag_1ms=false;
1225 7 Capture_KEY_Event();
1226 7 }
1227 6 if(Key_Down.Active)
1228 6 {
1229 7 Key_Down.Active=false;
1230 7 if(Key_Down.Byte_data==KB_EXIT)
C51 COMPILER V7.09 DATAFAX 03/22/2005 01:42:11 PAGE 21
1231 7 {
1232 8 Do_Cancel();
1233 8 Flag_Exit=true;
1234 8 Flag_KB_Enable=true;
1235 8 return;
1236 8 }
1237 7 }
1238 6 while(SPI_Read_Point!=SPI_Write_Point)
1239 6 {
1240 7 if(Flag_1ms)
1241 7 {
1242 8 Flag_1ms=false;
1243 8 Capture_KEY_Event();
1244 8 }
1245 7 if(Key_Down.Active)
1246 7 {
1247 8 Key_Down.Active=false;
1248 8 if(Key_Down.Byte_data==KB_EXIT)
1249 8 {
1250 9 Do_Cancel();
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