preparation for issue #88

ChangeLog

@@ -59,3 +59,4 @@ https://github.com/olikraus/u8g2 ChangeLog
   * Speed improvements for SW SPI und 8080 mode (issues 87, 90 and 95)
   * Fixed issue with ST7920 not using the optimized SW SPI procedures (issue 87)
   * Direct buffer API (issue 93)
+

csrc/u8x8.h

@@ -281,14 +281,17 @@ struct u8x8_display_info_struct
 #define U8X8_PIN_I2C_CLOCK 12	/* 1 = Input/high impedance, 0 = drive low */
 #define U8X8_PIN_I2C_DATA 13	/* 1 = Input/high impedance, 0 = drive low */
 
-#define U8X8_PIN_OUTPUT_CNT 14
+#define U8X8_PIN_CS1 14			/* KS0108 extra chip select */
+#define U8X8_PIN_CS2 15			/* KS0108 extra chip select */
 
-#define U8X8_PIN_MENU_SELECT 14
-#define U8X8_PIN_MENU_NEXT 15
-#define U8X8_PIN_MENU_PREV 16
-#define U8X8_PIN_MENU_HOME 17
-#define U8X8_PIN_MENU_UP 18
-#define U8X8_PIN_MENU_DOWN 19
+#define U8X8_PIN_OUTPUT_CNT 16
+
+#define U8X8_PIN_MENU_SELECT 16
+#define U8X8_PIN_MENU_NEXT 17
+#define U8X8_PIN_MENU_PREV 18
+#define U8X8_PIN_MENU_HOME 19
+#define U8X8_PIN_MENU_UP 20
+#define U8X8_PIN_MENU_DOWN 21
 
 #define U8X8_PIN_INPUT_CNT 6
 

sys/arduino/u8g2_page_buffer/GraphicsTest/GraphicsTest.ino

@@ -236,6 +236,17 @@ void draw(void) {
 
 void setup(void) {
   u8g2.begin();
+
+  /* U8g2 Project: SSD1306 Test Board */
+  pinMode(10, OUTPUT);
+  pinMode(9, OUTPUT);
+  digitalWrite(10, 0);
+  digitalWrite(9, 0);		
+
+  /* U8g2 Project: T6963 Test Board */
+  //pinMode(18, OUTPUT);
+  //digitalWrite(18, 1);	
+
 }
 
 void loop(void) {