Same library as tosihisa, but with extensions for SetTemplate, DeleteAllIDs, and SendData.

Dependents:   GT511C3_demo GT511C3 IOTProjectCodeDavidBruce15597305

Fork of GT511C3 by Toshihisa T

Files at this revision

API Documentation at this revision

Comitter:
beanmachine44
Date:
Tue Dec 01 20:48:44 2015 +0000
Parent:
1:aa0bd9bd1c56
Commit message:
Fixed bugs: Issued wrong command in SetTemplate; Removed extraneous waitPress as it was consuming 1 byte from the data packet after enroll when ID was set to -1; Changes: Made RecvData only fill the buffer with the actual data (no header and checksum)

Changed in this revision

GT511C3.cpp Show annotated file Show diff for this revision Revisions of this file
--- a/GT511C3.cpp	Tue Dec 01 18:13:20 2015 +0000
+++ b/GT511C3.cpp	Tue Dec 01 20:48:44 2015 +0000
@@ -134,24 +134,27 @@
 int GT511C3::RecvData(unsigned char *data,unsigned long size)
 {
     const unsigned char fixedbuf[4] = { 0x5A,0xA5,0x01,0x00 };
-    unsigned short sum = 0;
+    unsigned short sum = 0x5A + 0xA5 + 0x01 + 0x00;
     int i;
 
+    
+    for(i = 0;i < 4;i++){
+        while(!readable());
+        if (getc() != fixedbuf[i])
+            return -1;
+    }    
+    
     for(i = 0;i < size;i++){
         while(!readable());
-        *(data + i) = getc();
-        if(i < (size-2)){
-            sum += *(data + i);
-        }
-        if(i < 4){
-            if(*(data + i) != fixedbuf[i]){
-                return -1;
-            }
-        }
+        data[i] = getc();
+        sum += data[i];
     }
-    if(*(data + size - 2) != (sum & 0xff))
+    
+    while(!readable());
+    if(getc() != (sum & 0xff))
         return -2;
-    if(*(data + size - 1) != ((sum >> 8) & 0xff))
+    while(!readable());
+    if(getc() != ((sum >> 8) & 0xff))
         return -2;
     return 0;
 }
@@ -184,7 +187,7 @@
 {
     unsigned long Parameter = 1;
     unsigned short Response = 0;
-    unsigned char buf[4+sizeof(FirmwareVersion)+sizeof(IsoAreaMaxSize)+sizeof(DeviceSerialNumber)+2];
+    unsigned char buf[sizeof(FirmwareVersion)+sizeof(IsoAreaMaxSize)+sizeof(DeviceSerialNumber)];
     int sts = 0;
 
     if((sts = Init()) != 0)
@@ -195,9 +198,9 @@
         return -1;
     }
     if((sts = RecvData(buf,sizeof(buf))) == 0){
-        memcpy(&FirmwareVersion,&buf[4+0],sizeof(FirmwareVersion));
-        memcpy(&IsoAreaMaxSize,&buf[4+sizeof(FirmwareVersion)],sizeof(IsoAreaMaxSize));
-        memcpy(DeviceSerialNumber,&buf[4+sizeof(FirmwareVersion)+sizeof(IsoAreaMaxSize)],sizeof(DeviceSerialNumber));
+        memcpy(&FirmwareVersion,&buf[0],sizeof(FirmwareVersion));
+        memcpy(&IsoAreaMaxSize,&buf[sizeof(FirmwareVersion)],sizeof(IsoAreaMaxSize));
+        memcpy(DeviceSerialNumber,&buf[sizeof(FirmwareVersion)+sizeof(IsoAreaMaxSize)],sizeof(DeviceSerialNumber));
     }
     return sts;
 }
@@ -339,7 +342,7 @@
             return -9999;
         if(Enroll_N(3) != 0)
             continue;
-        WaitPress(0);
+        //WaitPress(0); // This was eating a byte from the DataPacket if you set the ID=-1
 
         if((sts = (*progress)(100,"Enroll OK\n")) != 0)
             return -9999;
@@ -363,11 +366,11 @@
 
 int GT511C3::SetTemplate(int ID, unsigned char *data, unsigned long size)
 {
-    unsigned long Parameter = 0xFFFF0000 | ID;
+    unsigned long Parameter = ID;
     unsigned short Response = 0;
     int sts = 0;
 
-    sts = SendRecv(CMD_DeleteID,&Parameter,&Response);
+    sts = SendRecv(CMD_SetTemplate,&Parameter,&Response);
     
     if ((sts != 0) || (Response != CMD_Ack))
         return -1;
@@ -375,12 +378,12 @@
     sts = SendData(data, size);
     
     if (sts != 0)
-        return -1;
+        return -2;
         
     sts = RecvResponse(&Parameter, &Response);
     
     if ((sts != 0) || (Response != CMD_Ack))
-        return -1;
+        return -3;
     
     return 0;
 }