Merge pull request #65 from ntb001/master

Allow for extended CAN IDs in the example programs

.gitignore

@@ -0,0 +1,131 @@
+## WINDOWS
+# Windows thumbnail cache files
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+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
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+[Dd]esktop.ini
+
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+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+## MAC OS
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+## DROPBOX
+# Dropbox settings and caches
+.dropbox
+.dropbox.attr
+.dropbox.cache
+
+## VS CODE
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+## VIM
+# Swap
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+[._]sw[a-p]
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+# directory configuration
+.dir-locals.el

README.md

@@ -145,7 +145,7 @@ When frame is received you may check whether it was remote request and whether i
 
 <br>
 
-For more information, please refer to [wiki page](http://www.seeedstudio.com/wiki/CAN-BUS_Shield).
+For more information, please refer to [wiki page](http://wiki.seeedstudio.com/CAN-BUS_Shield_V2.0/).
 
 
 ----
@@ -165,4 +165,3 @@ global distributors and partners to push open hardware movement.<br>
 
 
 [![Analytics](https://ga-beacon.appspot.com/UA-46589105-3/CAN_BUS_Shield)](https://github.com/igrigorik/ga-beacon)
-

examples/OBDII_PIDs/OBDII_PIDs.ino

@@ -97,7 +97,7 @@ void taskCanRecv()
         CAN.readMsgBuf(&len, buf);    // read data,  len: data length, buf: data buf
 
         Serial.println("\r\n------------------------------------------------------------------");
-        Serial.print("Get Data From id: ");
+        Serial.print("Get Data From id: 0x");
         Serial.println(CAN.getCanId(), HEX);
         for(int i = 0; i<len; i++)    // print the data
         {

examples/receive_Blink/receive_Blink.ino

@@ -37,11 +37,11 @@ void loop()
     {
         CAN.readMsgBuf(&len, buf);    // read data,  len: data length, buf: data buf
 
-        unsigned char canId = CAN.getCanId();
+        unsigned long canId = CAN.getCanId();
 
         Serial.println("-----------------------------");
-        Serial.println("get data from ID: ");
-        Serial.println(canId);
+        Serial.println("get data from ID: 0x");
+        Serial.println(canId, HEX);
 
         for(int i = 0; i<len; i++)    // print the data
         {

examples/receive_check/receive_check.ino

@@ -36,10 +36,10 @@ void loop()
     {
         CAN.readMsgBuf(&len, buf);    // read data,  len: data length, buf: data buf
 
-        unsigned int canId = CAN.getCanId();
+        unsigned long canId = CAN.getCanId();
         
         Serial.println("-----------------------------");
-        Serial.print("Get data from ID: ");
+        Serial.print("Get data from ID: 0x");
         Serial.println(canId, HEX);
 
         for(int i = 0; i<len; i++)    // print the data

examples/send_Blink/send_Blink.ino

@@ -27,8 +27,8 @@ unsigned char stmp[8] = {ledHIGH, 1, 2, 3, ledLOW, 5, 6, 7};
 
 void loop()
 {   Serial.println("In loop");
-    // send data:  id = 0x00, standard frame, data len = 8, stmp: data buf
-    CAN.sendMsgBuf(0x70,0, 8, stmp);
+    // send data:  id = 0x70, standard frame, data len = 8, stmp: data buf
+    CAN.sendMsgBuf(0x70, 0, 8, stmp);
     delay(1000);                       // send data once per second
 }
 

mcp_can.cpp

@@ -776,10 +776,8 @@ void MCP_CAN::mcp2515_read_canMsg( const byte buffer_load_addr, volatile unsigne
   // mcp2515 has auto-increment of address-pointer
   for (i = 0; i < 4; i++) tbufdata[i] = spi_read();
 
-  *rtrBit=(tbufdata[3]&0x08 ? 1 : 0 );
-  
   *id = (tbufdata[MCP_SIDH] << 3) + (tbufdata[MCP_SIDL] >> 5);
-
+  *ext = 0;
   if ( (tbufdata[MCP_SIDL] & MCP_TXB_EXIDE_M) ==  MCP_TXB_EXIDE_M )
   {
     /* extended id                  */
@@ -789,7 +787,9 @@ void MCP_CAN::mcp2515_read_canMsg( const byte buffer_load_addr, volatile unsigne
     *ext = 1;
   }
 
-  *len=spi_read() & MCP_DLC_MASK;
+  byte pMsgSize = spi_read();
+  *len = pMsgSize & MCP_DLC_MASK;
+  *rtrBit = (pMsgSize & MCP_RTR_MASK) ? 1 : 0;
   for (i = 0; i < *len && i<CAN_MAX_CHAR_IN_MESSAGE; i++) {
     buf[i] = spi_read();
   }