Add CRC32 and filenames to SNES database

Cart_Reader/Cart_Reader.ino

@@ -4,7 +4,7 @@
    This project represents a community-driven effort to provide
    an easy to build and easy to modify cartridge dumper.
 
-   Date:             20.06.2022
+   Date:             21.06.2022
    Version:          8.5 BETA
 
    SD lib: https://github.com/greiman/SdFat
@@ -370,6 +370,9 @@ inline uint32_t updateCRC(uint8_t ch, uint32_t crc) {
 
 // Calculate rom's CRC32 from SD
 uint32_t calculateCRC(char* fileName, char* folder) {
+  // Open folder
+  sd.chdir(folder);
+  // Open file
   if (myFile.open(fileName, O_READ)) {
     uint32_t oldcrc32 = 0xFFFFFFFF;
 
@@ -384,7 +387,12 @@ uint32_t calculateCRC(char* fileName, char* folder) {
     return ~oldcrc32;
   }
   else {
-    print_Error(F("File not found"), true);
+    display_Clear();
+    print_Msg(F("File "));
+    //print_Msg(folder);
+    //print_Msg(F("/"));
+    //print_Msg(fileName);
+    print_Error(F(" not found"), true);
   }
 }
 
@@ -444,7 +452,11 @@ boolean compareCRC(char* database, char* crcString) {
 #ifdef no-intro
   char crcStr[9];
   if (crcString == 0) {
+    //go to root
+    sd.chdir();
     // Calculate CRC32
+    print_Msg(F("CRC32... "));
+    display_Update();
     sprintf(crcStr, "%08lX", calculateCRC(fileName, folder));
   }
   else {
@@ -452,7 +464,6 @@ boolean compareCRC(char* database, char* crcString) {
     strcpy(crcStr, crcString);
   }
   // Print checksum
-  print_Msg(F("CRC32: "));
   print_Msg(crcStr);
   display_Update();
 

Cart_Reader/GB.ino

@@ -925,9 +925,6 @@ unsigned int calc_checksum_GB (char* fileName, char* folder) {
 
 // Compare checksum
 void compare_checksums_GB() {
-  println_Msg(F("Calculating Checksum..."));
-  display_Update();
-
   strcpy(fileName, romName);
   strcat(fileName, ".GB");
 

Cart_Reader/GBA.ino

@@ -130,8 +130,6 @@ void gbaMenu() {
       // Internal Checksum
       compare_checksum_GBA();
       // CRC32
-      println_Msg(F("Calculating CRC checksum..."));
-      display_Update();
       compareCRC("gba.txt", 0);
 #ifdef global_log
       save_log();
@@ -501,7 +499,7 @@ void setup_GBA() {
 
   // Get cart info
   display_Clear();
-  println_Msg(F("Seaching database..."));
+  println_Msg(F("Searching database..."));
   display_Update();
   getCartInfo_GBA();
   display_Clear();

Cart_Reader/MD.ino

@@ -1293,9 +1293,6 @@ void readROM_MD() {
   //println_Msg(F("s"));
   //display_Update();
 
-  println_Msg(F("Calculating checksum..."));
-  display_Update();
-
   // Calculate and compare CRC32 with no-intro
   compareCRC("md.txt", 0);
 

Cart_Reader/N64.ino

@@ -3434,9 +3434,6 @@ redumpsamefolder:
   // Close the file:
   myFile.close();
 
-  // Calculate Checksum and convert to string
-  println_Msg(F("Calculating CRC.."));
-  display_Update();
   if (compareCRC("n64.txt", 0)) {
 #else
   // dumping rom fast

Cart_Reader/SNES.ino

@@ -215,12 +215,10 @@ void snesMenu() {
           unsigned long startTime = millis();
           // start reading from cart
           readROM_SNES();
+          // Internal Checksum
           compare_checksum();
-
+          // CRC32
-          // print elapsed time
+          compareCRC("snes.txt", 0);
-          print_Msg(F("Time elapsed: "));
-          print_Msg((millis() - startTime) / 1000);
-          println_Msg(F("s"));
 #ifdef global_log
           save_log();
 #endif
@@ -337,7 +335,7 @@ void snesMenu() {
       resetArduino();
       break;
   }
-  println_Msg(F(""));
+  //println_Msg(F(""));
   println_Msg(F("Press Button..."));
   display_Update();
   wait();
@@ -818,7 +816,18 @@ void checkAltConf() {
   altconf = 0;
 
   if (myFile.open("snes.txt", O_READ)) {
+    // Get cart info
+    display_Clear();
+    println_Msg(F("Searching database..."));
+    display_Update();
+
     while (myFile.available()) {
+      // Skip first line with name
+      skip_line(&myFile);
+
+      // Skip over the CRC checksum
+      myFile.seekSet(myFile.curPosition() + 9);
+
       // Read 4 bytes into String, do it one at a time so byte order doesn't get mixed up
       sprintf(tempStr1, "%c", myFile.read());
       strcpy(tempStr2, tempStr1);
@@ -836,24 +845,31 @@ void checkAltConf() {
         myFile.seekSet(myFile.curPosition() + 1);
 
         // Read file size
-        romSize = (myFile.read() - 48) * 10 + (myFile.read() - 48);
+        byte romSize2 = (myFile.read() - 48) * 10 + (myFile.read() - 48);
 
         // Skip the , in the file
         myFile.seekSet(myFile.curPosition() + 1);
 
         // Read number of banks
-        numBanks  = (myFile.read() - 48) * 100 + (myFile.read() - 48) * 10 + (myFile.read() - 48);
+        byte numBanks2  = (myFile.read() - 48) * 100 + (myFile.read() - 48) * 10 + (myFile.read() - 48);
 
-        altconf = 1;
+        if ((romSize != romSize2) || (numBanks != numBanks2)) {
+          romSize = romSize2;
+          numBanks  = numBanks2;
+          altconf = 1;
+        }
       }
       // If no match empty string advance by 9 and try again
       else {
-        myFile.seekSet(myFile.curPosition() + 9);
+        // skip rest of line
+        myFile.seekSet(myFile.curPosition() + 7);
+        // skip third empty line
+        skip_line(&myFile);
       }
     }
+    // Close the file:
+    myFile.close();
   }
-  // Close the file:
-  myFile.close();
 }
 
 // Read header
@@ -1163,8 +1179,7 @@ unsigned int calc_checksum (char* fileName, char* folder) {
 }
 
 boolean compare_checksum() {
-
+  print_Msg(F("Internal Checksum..."));
-  println_Msg(F("Calculating Checksum"));
   display_Update();
 
   strcpy(fileName, romName);
@@ -1178,8 +1193,8 @@ boolean compare_checksum() {
   sprintf(calcsumStr, "%04X", calc_checksum(fileName, folder));
 
   if (strcmp(calcsumStr, checksumStr) == 0) {
-    print_Msg(F("Checksum OK: "));
+    println_Msg(F("OK"));
-    println_Msg(calcsumStr);
+    //println_Msg(calcsumStr);
     display_Update();
     return 1;
   }