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More info:
Also added Pocket SNES PCB by Niltonn
https://forum.arduino.cc/index.php?topic=158974.msg4381465#msg4381465

Cart_Reader/Cart_Reader.ino

@@ -2,15 +2,15 @@
                     Cartridge Reader for Arduino Mega2560
 
    Author:           sanni
-   Date:             12.11.2019
-   Version:          4.1
+   Date:             27.11.2019
+   Version:          4.2
 
    SD  lib:         https://github.com/greiman/SdFat
    LCD lib:         https://github.com/adafruit/Adafruit_SSD1306
    Clockgen:        https://github.com/etherkit/Si5351Arduino
    RGB Tools lib:   https://github.com/joushx/Arduino-RGB-Tools
 
-   Compiled with Arduino 1.8.9 and Arduino AVR Boards Version 1.6.21
+   Compiled with Arduino 1.8.10
 
    Thanks to:
    MichlK - ROM-Reader for Super Nintendo
@@ -43,7 +43,7 @@
 **********************************************************************************/
 #include <SdFat.h>
 
-char ver[5] = "4.1";
+char ver[5] = "4.2";
 
 /******************************************
    Options

Cart_Reader/NES.ino

@@ -2705,7 +2705,7 @@ void writeRAM() {
         case 0: // 2K/4K
           for (word address = 0x0; address < (0x800 * ramsize); address += 512) { // 2K/4K
             sdFile.read(sdBuffer, 512);
-            for (int x = 0; x < 512; x++){
+            for (int x = 0; x < 512; x++) {
               write_prg_byte(base + address + x, sdBuffer[x]); // SWITCH MUST BE IN OFF POSITION
             }
           }
@@ -2737,7 +2737,7 @@ void writeRAM() {
             write_prg_byte(0xA001, 0x30); // PRG RAM PROTECT - Enable reading/writing to RAM at $7000-$71FF
             for (word address = 0x1000; address < 0x1200; address += 512) { // 512B
               sdFile.read(sdBuffer, 512);
-              for (int x = 0; x < 512; x++){
+              for (int x = 0; x < 512; x++) {
                 write_wram_byte(base + address + x, sdBuffer[x]);
               }
             }
@@ -2745,7 +2745,7 @@ void writeRAM() {
             write_prg_byte(0xA001, 0xC0); // PRG RAM PROTECT - Enable reading/writing to RAM at $7200-$73FF
             for (word address = 0x1200; address < 0x1400; address += 512) { // 512B
               sdFile.read(sdBuffer, 512);
-              for (int x = 0; x < 512; x++){
+              for (int x = 0; x < 512; x++) {
                 write_wram_byte(base + address + x, sdBuffer[x]);
               }
             }
@@ -2755,7 +2755,7 @@ void writeRAM() {
             write_prg_byte(0xA001, 0x80); // PRG RAM CHIP ENABLE - Chip Enable, Allow Writes
             for (word address = 0; address < 0x2000; address += 512) { // 8K
               sdFile.read(sdBuffer, 512);
-              for (int x = 0; x < 512; x++){
+              for (int x = 0; x < 512; x++) {
                 write_prg_byte(base + address + x, sdBuffer[x]);
               }
             }
@@ -2821,7 +2821,7 @@ void writeRAM() {
             write_ram_byte(0xF800, 0x40); // PRG RAM WRITE ENABLE
             for (word address = 0; address < 0x2000; address += 512) { // 8K
               sdFile.read(sdBuffer, 512);
-              for (int x = 0; x < 512; x++){
+              for (int x = 0; x < 512; x++) {
                 write_prg_byte(base + address + x, sdBuffer[x]);
               }
             }
@@ -2834,7 +2834,7 @@ void writeRAM() {
           write_prg_byte(0x7EF9, 0xA3); // PRG RAM ENABLE 1
           for (word address = 0x1F00; address < 0x2000; address += 512) { // PRG RAM 1K ($7F00-$7FFF)
             sdFile.read(sdBuffer, 128);
-            for (int x = 0; x < 128; x++){
+            for (int x = 0; x < 128; x++) {
               write_prg_byte(base + address + x, sdBuffer[x]);
             }
           }
@@ -3139,7 +3139,7 @@ void NESmaker_ID() { // Read Flash ID
   write_prg_byte(0xAAAA, 0x55);
   write_prg_byte(0xC000, 0x01);
   write_prg_byte(0x9555, 0xF0); // Software ID Exit
-  if(strcmp(flashID, "BFB7") == 0) // SST 39SF040
+  if (strcmp(flashID, "BFB7") == 0) // SST 39SF040
     flashfound = 1;
 }
 

Cart_Reader/WS.ino

@@ -163,7 +163,7 @@ uint8_t getCartInfo_WS()
   dataIn_WS();
 
   for (uint32_t i = 0; i < 16; i += 2)
-    *((uint16_t*)(sdBuffer + i)) = readWord_WS(0xffff0 + i);
+    * ((uint16_t*)(sdBuffer + i)) = readWord_WS(0xffff0 + i);
 
   wsGameChecksum = *(uint16_t*)(sdBuffer + 14);
   wsWitch = false;
@@ -431,7 +431,7 @@ void readROM_WS(char *outPathBuf, size_t bufferSize)
         PORTB ^= (1 << 4);
 
       for (uint32_t w = 0; w < 512; w += 2)
-        *((uint16_t*)(sdBuffer + w)) = readWord_WS(0x20000 + addr + w);
+        * ((uint16_t*)(sdBuffer + w)) = readWord_WS(0x20000 + addr + w);
 
       myFile.write(sdBuffer, 512);
     }
@@ -772,7 +772,9 @@ void writeEEPROM_WS()
         pulseCLK_WS(1 + 32 + 3);
 
         dataIn_WS();
-        do { pulseCLK_WS(128); }
+        do {
+          pulseCLK_WS(128);
+        }
         while ((readByte_WSPort(0xc8) & 0x02) == 0x00);
       }
     }

README.md

@@ -12,7 +12,8 @@ Be sure to check the guides in the [Wiki](https://github.com/sanni/cartreader/wi
 - Easy to modify open-source code, write your own extensions and share them with others      
 
 #### Supported Systems:    
-- Reads NES and Famicom cartridges    
+- Reads NES, Famicom and Family Basic cartridges including save    
+- Supports Mapper 30/NESmaker and flashes INL NM30 boards        
 - Reads SNES roms and reads/writes save games from and to the SNES cartridge  
   Supported cartridge types so far: LoRom, HiRom, ExHiRom, SuperFX, SuperFX2, SDD1, CX4, SPC7110, SA1 (last two chips need Adafruit Clock Generator)     
 - Reads and writes SNES Satellaview 8M Memory packs    

pcb/README.md

@@ -1,34 +1,3 @@
 #### cartreader.zip is the main PCB, if you order it from [JLCPCB](https://jlcpcb.com/quote) you usually get a coupon displayed during the checkout for buying parts [from lcsc.com](https://github.com/sanni/cartreader/wiki/Needed-Parts). [Default settings](https://www.dropbox.com/s/06dnus50ikmsmya/pcb16.jpg?dl=0) are fine, just select the color you prefer and off you go. If this is your first order from JLCPCB you should only pay $2 for 5 PCBs.    
 
 ![image](https://dl.dropboxusercontent.com/s/ta7pjoxn9kirtan/v17pcb.png?dl=1)   
-
-#### nes_adapter.zip is an add-on for reading NES carts, [PCB thickness needs to be changed to 1.2mm](https://dl.dropboxusercontent.com/s/va1c72073cqfy90/pcb12.jpg?dl=1), this is very important or else it won't fit into the SNES slot. You can order a 2.5mm 72pin NES slot [here](https://www.aliexpress.com/item/32827561164.html).     
-
-![image](https://dl.dropboxusercontent.com/s/z2atlcly642sewj/nes_adapter.png?dl=1)   
-
-#### famicom_adapter.zip is an add-on for reading Famicom carts, [PCB thickness needs to be changed to 1.2mm](https://dl.dropboxusercontent.com/s/va1c72073cqfy90/pcb12.jpg?dl=1), this is very important or else it won't fit into the SNES slot. You can order a 2.54mm 60pin Famicom slot [here](https://www.aliexpress.com/item/32827561249.html).     
-
-![image](https://dl.dropboxusercontent.com/s/w89ivzvuzk6hf5b/famicom_adapter.png?dl=1)   
-
-#### sms_adapter.zip is an add-on for reading Sega Master System carts. You can order a 2.54mm 50pin SMS slot [here](https://www.aliexpress.com/item/32818469880.html). The adapter is based on the [design by Raphnet](https://www.raphnet.net/electronique/sms_to_smd/index_en.php). For use with the Cart Reader ignore the SMD footprints on the PCB, the adapter does not need any components. I only bridged R5 to connect the reset line, although I'm not sure if this is even needed.    
-
-![image](https://dl.dropboxusercontent.com/s/r6lavgoaccjtrz7/sms_adapter.png?dl=1)   
-
-#### wonderswan_adapter.zip is an add-on for reading WonderSwan carts. [PCB thickness needs to be changed to 1.2mm](https://dl.dropboxusercontent.com/s/755249v8smcuoft/wonderswan_adapter.png?dl=1), this is very important or else it won't fit into the SNES slot. (Optional) Install C1 and C2 with 10uF/16v 1210 package tantalum capacitor.
-
-![image](https://dl.dropboxusercontent.com/s/755249v8smcuoft/wonderswan_adapter.png?dl=1)   
-
-#### flash_adapter.zip is an add-on for writing flashroms like the 29F032, 29L3211, 29LV160, [PCB thickness needs to be changed to 1.2mm](https://dl.dropboxusercontent.com/s/va1c72073cqfy90/pcb12.jpg?dl=1), this is very important or else it won't fit into the SNES slot.   
-   
-![image](https://dl.dropboxusercontent.com/s/afrfmiuwvmvg9px/flash_adapter.png?dl=1)   
-
-#### eprom_adapter.zip is an add-on for writing an 27C322 eprom, [PCB thickness needs to be changed to 1.2mm](https://www.dropbox.com/s/va1c72073cqfy90/pcb12.jpg?dl=0), this is very important or else it won't fit into the SNES slot.     
-   
-![image](https://dl.dropboxusercontent.com/s/ldmtkjv7xsgtwyg/27c322_adapter.png?dl=1)   
-
-#### With the sd_adapter PCB you can transform the microSD module from the parts list into a full size SD module by desoldering all the components and soldering them to this PCB. This is optional since you can also just mount the microSD module as is.  
-
-![image](https://dl.dropboxusercontent.com/s/jcse9iaxm3bbuu6/sd_adapter.pngg?dl=1)    
-
-
-For [Oshpark](https://oshpark.com/) you need to [rename filename.GML to filename.GKO](https://www.dropbox.com/s/0rcvhalgeu11sf8/rename.jpg?dl=0) or it won't find the board outline. Oshpark is great for ordering the smaller PCBs but very expensive for larger boards.   

pcb/adapters/README.md

@@ -0,0 +1,30 @@
+#### nes_adapter.zip is an add-on for reading NES carts, [PCB thickness needs to be changed to 1.2mm](https://dl.dropboxusercontent.com/s/va1c72073cqfy90/pcb12.jpg?dl=1), this is very important or else it won't fit into the SNES slot. You can order a 2.5mm 72pin NES slot [here](https://www.aliexpress.com/item/32827561164.html).     
+
+![image](https://dl.dropboxusercontent.com/s/z2atlcly642sewj/nes_adapter.png?dl=1)   
+
+#### famicom_adapter.zip is an add-on for reading Famicom carts, [PCB thickness needs to be changed to 1.2mm](https://dl.dropboxusercontent.com/s/va1c72073cqfy90/pcb12.jpg?dl=1), this is very important or else it won't fit into the SNES slot. You can order a 2.54mm 60pin Famicom slot [here](https://www.aliexpress.com/item/32827561249.html).     
+
+![image](https://dl.dropboxusercontent.com/s/w89ivzvuzk6hf5b/famicom_adapter.png?dl=1)   
+
+#### sms_adapter.zip is an add-on for reading Sega Master System carts. You can order a 2.54mm 50pin SMS slot [here](https://www.aliexpress.com/item/32818469880.html). The adapter is based on the [design by Raphnet](https://www.raphnet.net/electronique/sms_to_smd/index_en.php). For use with the Cart Reader ignore the SMD footprints on the PCB, the adapter does not need any components. I only bridged R5 to connect the reset line, although I'm not sure if this is even needed.    
+
+![image](https://dl.dropboxusercontent.com/s/r6lavgoaccjtrz7/sms_adapter.png?dl=1)   
+
+#### wonderswan_adapter.zip is an add-on for reading WonderSwan carts. [PCB thickness needs to be changed to 1.2mm](https://dl.dropboxusercontent.com/s/755249v8smcuoft/wonderswan_adapter.png?dl=1), this is very important or else it won't fit into the SNES slot. (Optional) Install C1 and C2 with 10uF/16v 1210 package tantalum capacitor.
+
+![image](https://dl.dropboxusercontent.com/s/755249v8smcuoft/wonderswan_adapter.png?dl=1)   
+
+#### flash_adapter.zip is an add-on for writing flashroms like the 29F032, 29L3211, 29LV160, [PCB thickness needs to be changed to 1.2mm](https://dl.dropboxusercontent.com/s/va1c72073cqfy90/pcb12.jpg?dl=1), this is very important or else it won't fit into the SNES slot.   
+   
+![image](https://dl.dropboxusercontent.com/s/afrfmiuwvmvg9px/flash_adapter.png?dl=1)   
+
+#### eprom_adapter.zip is an add-on for writing an 27C322 eprom, [PCB thickness needs to be changed to 1.2mm](https://www.dropbox.com/s/va1c72073cqfy90/pcb12.jpg?dl=0), this is very important or else it won't fit into the SNES slot.     
+   
+![image](https://dl.dropboxusercontent.com/s/ldmtkjv7xsgtwyg/27c322_adapter.png?dl=1)   
+
+#### With the sd_adapter PCB you can transform the microSD module from the parts list into a full size SD module by desoldering all the components and soldering them to this PCB. This is optional since you can also just mount the microSD module as is.  
+
+![image](https://dl.dropboxusercontent.com/s/jcse9iaxm3bbuu6/sd_adapter.pngg?dl=1)    
+
+
+For [Oshpark](https://oshpark.com/) you need to [rename filename.GML to filename.GKO](https://www.dropbox.com/s/0rcvhalgeu11sf8/rename.jpg?dl=0) or it won't find the board outline. Oshpark is great for ordering the smaller PCBs but very expensive for larger boards.   

pcb/pocketsnes/README.md

@@ -0,0 +1,5 @@
+#### pocketsnes.zip is a smaller variant of the Cart Reader PCB made by Niltonn. To order the PCB please refer to: https://docs.easyeda.com/en/PCB/Order-PCB         
+
+![image](https://dl.dropboxusercontent.com/s/g0bhixbcrzjuye8/pocketsnes.jpg?dl=1)   
+
+More info: https://forum.arduino.cc/index.php?topic=158974.msg4381465#msg4381465