From 478f9c6a277865cec26f0c38bc50d1949383576b Mon Sep 17 00:00:00 2001
From: sanni <sanni@users.noreply.github.com>
Date: Thu, 20 Sep 2018 02:30:23 +0200
Subject: [PATCH] V1.8: Disable SRAM when flashing LoROM repro

[Imgur](https://i.imgur.com/YSI1xRq.jpg)
---
 Cart_Reader/Cart_Reader.ino | 6 +++---
 Cart_Reader/FLASH.ino       | 8 ++++++--
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/Cart_Reader/Cart_Reader.ino b/Cart_Reader/Cart_Reader.ino
index bb9fc10..80129c0 100644
--- a/Cart_Reader/Cart_Reader.ino
+++ b/Cart_Reader/Cart_Reader.ino
@@ -2,8 +2,8 @@
                     Cartridge Reader for Arduino Mega2560
 
    Author:           sanni
-   Date:             12-09-2018
-   Version:          1.7
+   Date:             20-09-2018
+   Version:          1.8
 
    SD  lib:         https://github.com/greiman/SdFat
    LCD lib:         https://github.com/adafruit/Adafruit_SSD1306
@@ -35,7 +35,7 @@
    infinest - help with GB Memory cart
 
 **********************************************************************************/
-char ver[5] = "1.7";
+char ver[5] = "1.8";
 
 /******************************************
    Define Starting Point
diff --git a/Cart_Reader/FLASH.ino b/Cart_Reader/FLASH.ino
index 5d2b4b0..97840dd 100644
--- a/Cart_Reader/FLASH.ino
+++ b/Cart_Reader/FLASH.ino
@@ -53,7 +53,7 @@ static const char epromMenuItem5[] PROGMEM = "Reset";
 static const char* const menuOptionsEprom[] PROGMEM = {epromMenuItem1, epromMenuItem2, epromMenuItem3, epromMenuItem4, epromMenuItem5};
 
 void flashMenu() {
-  // create menu with title and 4 options to choose from
+  // create menu with title and 3 options to choose from
   unsigned char flashSlot;
   // Copy menuOptions out of progmem
   convertPgm(menuOptionsFlash, 3);
@@ -678,6 +678,8 @@ void writeByte_Flash(unsigned long myAddress, byte myData) {
   }
   else {
     PORTK = (myAddress >> 8) & 0x7F;
+    // Set A15(PK7) HIGH to disable SRAM
+    PORTK |= (1 << 7);
     PORTL = (myAddress >> 15) & 0xFF;
   }
   PORTC = myData;
@@ -707,6 +709,8 @@ byte readByte_Flash(unsigned long myAddress) {
   }
   else {
     PORTK = (myAddress >> 8) & 0x7F;
+    // Set A15(PK7) HIGH to disable SRAM
+    PORTK |= (1 << 7);
     PORTL = (myAddress >> 15) & 0xFF;
   }
 
@@ -890,7 +894,7 @@ void busyCheck29F032(byte c) {
 
   // Setting OE(PH1) CE(PH6)LOW
   PORTH &= ~((1 << 1) | (1 << 6));
-  // Setting WE(PH4) WE_SNES HIGH
+  // Setting WE(PH4) WE_SNES(PH5) HIGH
   PORTH |=  (1 << 4) | (1 << 5);
 
   //When the Embedded Program algorithm is complete, the device outputs the datum programmed to D7