emu

floppy-emu-1.0Q-F13/readme.txt

@@ -0,0 +1,24 @@
+To update the Xilinx CPLD firmware:
+
+1. Copy firmware.xvf to the root directory of your SD card, and insert it into Floppy Emu.
+2. Hold down the PREV and NEXT buttons.
+3. Press and release the RESET button.
+4. Follow the on-screen prompts.
+
+
+To update the microcontroller application software:
+
+If you have the SD bootloader already installed:
+1. Copy femu.bin to the root directory of your SD card, and insert it into Floppy Emu.
+2. Hold down the PREV and SELECT buttons.
+3. Press and release the RESET button.
+4. Follow the on-screen prompts.
+
+If you don't have the SD bootloader installed:
+1. Use your AVR ISP programmer to flash floppyemu.hex to the microcontroller.
+
+If you want to install the SD bootloader:
+1. Use your AVR ISP programmer to flash merged.hex to the microcontroller.
+2. Use the ISP programmer to set the BOOTRST fuse to 1 (on), and the BOOTSZ fuse to 2048W_F800. (Fuses should be Extended: 0xFC, High: 0xDA, Low: 0xBF)
+
+

floppy-emu-source-1.0L-F11/AVR/.settings/de.innot.avreclipse.core.prefs

@@ -1,7 +1,7 @@
-avrtarget/ClockFrequency=16000000
+avrtarget/ClockFrequency=20000000
 avrtarget/ExtRAMSize=0
 avrtarget/ExtendedRAM=false
-avrtarget/MCUType=atmega2560
+avrtarget/MCUType=atmega1284p
 avrtarget/UseEEPROM=false
 avrtarget/UseExtendedRAMforHeap=true
 avrtarget/perConfig=false

floppy-emu-source-1.0L-F11/AVR/diskmenu.cpp

@@ -193,7 +193,7 @@ void InitDiskMenu(SdFat& sd)
 			SdBaseFile::dirName(dir, pFileEntries[diskMenuEntryCount].shortName);
 			pFileEntries[diskMenuEntryCount].imageFileType = imageType;
 			diskMenuEntryCount++;	
-		}									
+		}
 	} 
 	
 	// add up directory, if not at the root
@@ -204,7 +204,7 @@ void InitDiskMenu(SdFat& sd)
 		pFileEntries[diskMenuEntryCount].imageFileType = DISK_IMAGE_UP_DIRECTORY;
 		diskMenuEntryCount++;	
 	}
-				
+
 	char file1[FILENAME_LEN+1], file2[FILENAME_LEN+1], temp[FILENAME_LEN+1];
 	eImageType tempType;
 	
@@ -223,7 +223,21 @@ void InitDiskMenu(SdFat& sd)
 				file2[x] = toupper(file2[x]);
 			
 			// sort directories before regular files	
-			int diff = strncmp(file1, file2, FILENAME_LEN+1);
+			int diff = 0; // = strncmp(file1, file2, FILENAME_LEN+1);
+			int p;
+			for (p = 0; i < FILENAME_LEN+1; p++) {
+				diff = file1[p] - file2[p];
+				if ( diff != 0 ) {
+					if ( file1[p] == '.' )
+						diff = 127 - file2[2];
+					else if ( file2[p] == '.' )
+						diff = file1[p] - 127;
+					break;
+				}
+				if ( file1[p] == 0 )
+					break;
+			}
+			// possibly either directory or file is the major key
 			if (pFileEntries[i].imageFileType == DISK_IMAGE_DIRECTORY ||
 				pFileEntries[i].imageFileType == DISK_IMAGE_UP_DIRECTORY)
 				diff -= 1000;

floppy-emu-source-1.0L-F11/AVR/floppyemu.cpp

@@ -55,11 +55,13 @@
 #define CPLD_STEP_DIR_MOTOR_ON_PIN 7
 
 #define CPLD_STEP_REQ_PORT D
-#define CPLD_STEP_REQ_PIN 0 // PCINT24
+#define CPLD_STEP_REQ_PIN 0
+// PCINT24
 #define CPLD_STEP_REQ_INT_MSK PCMSK3
+// PCINT31:24
 #define CPLD_STEP_REQ_INT_PIN PCINT24
 #define CPLD_STEP_REQ_INT_ENABLE PCIE3
-
+//PCICR BIT3
 #define CPLD_CURRENT_SIDE_PORT C
 #define CPLD_CURRENT_SIDE_PIN 1 // PCINT17
 #define CPLD_CURRENT_SIDE_INT_MSK PCMSK2