issue #288

ChangeLog

@@ -119,5 +119,5 @@ https://github.com/olikraus/u8g2 ChangeLog
   * Improved speed for HW SPI with SSD13xx OLEDs (issue 215)
 2017-xx-xx	v2.16.x	
   * Fonts u8g2_font_unifont_t_korean1, u8g2_font_unifont_t_korean2 (issue 266)
-  
+  * Added support for 64128N ST7565 based display (issue 292)
   

doc/faq.txt

@@ -1,8 +1,11 @@
+Sections
+- Wiring... Interconnect, pin/label names
+- Displays... Display support, display problems
+- U8g2... Setup, compilation, usage, fonts
+
 
 Wiring
 
-
-
 Q: Why does my xxx_SW_I2C() device not work with my other I2C devices?
 A: SW_I2C emulates I2C with digitalWrite(), which will have a conflict with other
 I2C devices at the same pins. There are two options: (A) use xxx_HW_I2C() or 
@@ -106,6 +109,15 @@ https://github.com/olikraus/U8g2_Arduino/archive/master.zip
 In the Arduino IDE use the Sketch>Include Library>Add .ZIP Library... menu to 
 import the u8g2 zip library.
 
+Q: There is a compilation error with I2C/SPI library used by U8g2.
+A: U8g2 expects standard Arduino lWire and SPI libraries. However some
+none-Arduino Boards did not implement the full set of library functions.
+Examples are the missing setClock() or missing beginTransaction() functions.
+This is an issue with your board support library and not an issue of U8g2.
+Workaround:
+1. Disable (comment) U8X8_HAVE_HW_SPI and/or U8X8_HAVE_HW_I2C in u8x8.h
+2. Use SW SPI/SW I2C U8g2 constructors
+
 Q: What is the meaning of the F/1/2 in the U8g2 constructor name?
 A: "F" means full buffer mode. The entire display is rendered in RAM. Use
 "sendBuffer" to transfer this RAM buffer to the display. "1"  and "2" constructors