2.2.6

examples/page_buffer/HelloWorld/HelloWorld.ino

@@ -61,7 +61,7 @@
 //U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 12, /* dc=*/ 4, /* reset=*/ 6);	// Arduboy (Production, Kickstarter Edition)
 //U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8G2_SSD1306_128X64_NONAME_1_3W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* reset=*/ 8);
-U8G2_SSD1306_128X64_NONAME_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* reset=*/ 8);
+//U8G2_SSD1306_128X64_NONAME_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* reset=*/ 8);
 //U8G2_SSD1306_128X64_NONAME_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);   // All Boards without Reset of the Display
 //U8G2_SSD1306_128X64_NONAME_1_6800 u8g2(U8G2_R0, 13, 11, 2, 3, 4, 5, 6, A4, /*enable=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8);
 //U8G2_SSD1306_128X64_NONAME_1_8080 u8g2(U8G2_R0, 13, 11, 2, 3, 4, 5, 6, A4, /*enable=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8);

extras/ChangeLog

@@ -29,5 +29,7 @@ https://github.com/olikraus/u8g2 ChangeLog
 2016-xx-xx	v2.2.x	  olikraus@gmail.com
   * U8x8: Upscale by 2 (Issue 41)
   * Fixed SSD1306 I2C procedures (mirror pixel in last tile column, issue 44)
+  * Experimental support für mini12864 (pull request)
+  * Use beginTransaction for SPI. This requires Arduino 1.6.0
   
   

library.properties

@@ -1,5 +1,5 @@
 name=U8g2
-version=2.2.5
+version=2.2.6
 author=oliver <olikraus@gmail.com>
 maintainer=oliver <olikraus@gmail.com>
 sentence=Library for monochrome LCDs and OLEDs. Successor of U8glib.

src/U8x8lib.cpp

@@ -280,9 +280,13 @@ extern "C" uint8_t u8x8_byte_arduino_hw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t a
       /* no wait required here */
       
       /* for SPI: setup correct level of the clock signal */
-      pinMode(11, OUTPUT);
-      pinMode(13, OUTPUT);
-      digitalWrite(13, u8x8_GetSPIClockPhase(u8x8));
+      // removed, use SPI.begin() instead: pinMode(11, OUTPUT);
+      // removed, use SPI.begin() instead: pinMode(13, OUTPUT);
+      // removed, use SPI.begin() instead: digitalWrite(13, u8x8_GetSPIClockPhase(u8x8));
+      
+      /* setup hardware with SPI.begin() instead of previous digitalWrite() and pinMode() calls */
+      SPI.begin();	
+
       break;
       
     case U8X8_MSG_BYTE_SET_DC:
@@ -290,6 +294,9 @@ extern "C" uint8_t u8x8_byte_arduino_hw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t a
       break;
       
     case U8X8_MSG_BYTE_START_TRANSFER:
+#if ARDUINO >= 10600
+      SPI.beginTransaction(SPISettings(u8x8->display_info->sck_clock_hz, MSBFIRST, u8x8->display_info->spi_mode));
+#else
       SPI.begin();
       
       if ( u8x8->display_info->sck_pulse_width_ns < 70 )
@@ -300,6 +307,7 @@ extern "C" uint8_t u8x8_byte_arduino_hw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t a
 	SPI.setClockDivider( SPI_CLOCK_DIV8 );
       SPI.setDataMode(u8x8->display_info->spi_mode);
       SPI.setBitOrder(MSBFIRST);
+#endif
       
       u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_enable_level);  
       u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->post_chip_enable_wait_ns, NULL);
@@ -309,7 +317,11 @@ extern "C" uint8_t u8x8_byte_arduino_hw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t a
       u8x8->gpio_and_delay_cb(u8x8, U8X8_MSG_DELAY_NANO, u8x8->display_info->pre_chip_disable_wait_ns, NULL);
       u8x8_gpio_SetCS(u8x8, u8x8->display_info->chip_disable_level);
 
+#if ARDUINO >= 10600
+      SPI.endTransaction();
+#else
       SPI.end();
+#endif
 
       break;
     default:

src/clib/u8x8.h

@@ -211,6 +211,9 @@ struct u8x8_display_info_struct
   /* AVR: below 70: DIV2, 8 MHz, >= 70 --> 4MHz clock (DIV4) */
   uint8_t sck_pulse_width_ns;		/* UC1701: 50ns */
   
+  /* until here we have 8 bytes (uint8_t). Newly introduced for SPI.beginTransaction */
+  uint32_t sck_clock_hz;
+  
   /* previous name "sck_takeover_edge" renamed to "spi_mode" */
   /* bit 0 of spi_mode is equal to the value of the previous variable sck_takeover_edge */ 
   /* SPI has four clock modes: */
@@ -670,6 +673,7 @@ void utf8_show(void);		/* show content of UTF-8 frame buffer */
 /*==========================================*/
 /* u8x8_d_XXX.c */
 uint8_t u8x8_d_uc1701_ea_dogs102(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
+uint8_t u8x8_d_uc1701_mini12864(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
 uint8_t u8x8_d_ssd1306_128x64_noname(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
 uint8_t u8x8_d_sh1106_128x64_noname(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
 uint8_t u8x8_d_st7920_192x32(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);

src/clib/u8x8_d_a2printer.c

@@ -149,6 +149,7 @@ static const u8x8_display_info_t u8x8_a2printer_384x240_display_info =
   /* post_reset_wait_ms = */ 6, 
   /* sda_setup_time_ns = */ 20,		
   /* sck_pulse_width_ns = */  140,	
+  /* sck_clock_hz = */ 1000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		/* old: sck_takeover_edge, new: active high (bit 1), rising edge (bit 0) */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 30,

src/clib/u8x8_d_ld7032_60x32.c

@@ -181,6 +181,7 @@ static const u8x8_display_info_t u8x8_ld7032_60x32_display_info =
   /* post_reset_wait_ms = */ 100, 
   /* sda_setup_time_ns = */ 30,		/* 20ns, but cycle time is 60ns, so use 60/2 */
   /* sck_pulse_width_ns = */ 30,	/* 20ns, but cycle time is 60ns, so use 60/2  */
+  /* sck_clock_hz = */ 4000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		/* active high, rising edge */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 20,

src/clib/u8x8_d_ls013b7dh03.c

@@ -54,6 +54,7 @@ static const u8x8_display_info_t u8x8_ls013b7dh03_128x128_display_info =
   /* post_reset_wait_ms = */ 6,
   /* sda_setup_time_ns = */ 227,	/* 227 nsec according to the datasheet */		
   /* sck_pulse_width_ns = */  255,	/* 450 nsec according to the datasheet */
+  /* sck_clock_hz = */ 1000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 3,		/* active low, rising edge */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 100,

src/clib/u8x8_d_sed1330.c

@@ -125,6 +125,7 @@ static const u8x8_display_info_t u8x8_sed1330_240x128_display_info =
   /* post_reset_wait_ms = */ 6, 
   /* sda_setup_time_ns = */ 20,		
   /* sck_pulse_width_ns = */  140,	
+  /* sck_clock_hz = */ 1000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 120,		/* G242CX Datasheet p5 */

src/clib/u8x8_d_ssd1306_128x32.c

@@ -188,6 +188,7 @@ static const u8x8_display_info_t u8x8_ssd1306_128x32_univision_display_info =
   /* post_reset_wait_ms = */ 100, /* far east OLEDs need much longer setup time */
   /* sda_setup_time_ns = */ 50,		/* SSD1306: 15ns, but cycle time is 100ns, so use 100/2 */
   /* sck_pulse_width_ns = */ 50,	/* SSD1306: 20ns, but cycle time is 100ns, so use 100/2, AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */
+  /* sck_clock_hz = */ 4000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		/* active high, rising edge */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 40,

src/clib/u8x8_d_ssd1306_128x64_noname.c

@@ -188,6 +188,7 @@ static const u8x8_display_info_t u8x8_ssd1306_128x64_noname_display_info =
   /* post_reset_wait_ms = */ 100, /* far east OLEDs need much longer setup time */
   /* sda_setup_time_ns = */ 50,		/* SSD1306: 15ns, but cycle time is 100ns, so use 100/2 */
   /* sck_pulse_width_ns = */ 50,	/* SSD1306: 20ns, but cycle time is 100ns, so use 100/2, AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */
+  /* sck_clock_hz = */ 4000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		/* active high, rising edge */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 40,
@@ -222,6 +223,7 @@ static const u8x8_display_info_t u8x8_sh1106_128x64_noname_display_info =
   /* post_reset_wait_ms = */ 100, /* far east OLEDs need much longer setup time */
   /* sda_setup_time_ns = */ 50,		/* SSD1306: 15ns, but cycle time is 100ns, so use 100/2 */
   /* sck_pulse_width_ns = */ 50,	/* SSD1306: 20ns, but cycle time is 100ns, so use 100/2, AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */
+  /* sck_clock_hz = */ 4000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		/* active high, rising edge */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 40,

src/clib/u8x8_d_ssd1322.c

@@ -198,6 +198,7 @@ static const u8x8_display_info_t u8x8_ssd1322_256x64_display_info =
   /* post_reset_wait_ms = */ 100, /* far east OLEDs need much longer setup time */
   /* sda_setup_time_ns = */ 50,		/* SSD1322: 15ns, but cycle time is 100ns, so use 100/2 */
   /* sck_pulse_width_ns = */ 50,	/* SSD1322: 20ns, but cycle time is 100ns, so use 100/2, AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */
+  /* sck_clock_hz = */ 4000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		/* active high, rising edge */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 10,

src/clib/u8x8_d_st7565.c

@@ -81,6 +81,7 @@ static const u8x8_display_info_t u8x8_st7565_128x64_display_info =
   /* post_reset_wait_ms = */ 1, 
   /* sda_setup_time_ns = */ 50,		/* st7565 datasheet, table 26, tsds */
   /* sck_pulse_width_ns = */ 120,	/* half of cycle time (100ns according to datasheet), AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */
+  /* sck_clock_hz = */ 4000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		/* active high, rising edge */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 40,	/* st7565 datasheet, table 24, tds8 */
@@ -104,6 +105,7 @@ static const u8x8_display_info_t u8x8_st7565_128x32_display_info =
   /* post_reset_wait_ms = */ 1, 
   /* sda_setup_time_ns = */ 50,		/* st7565 datasheet, table 26, tsds */
   /* sck_pulse_width_ns = */ 120,	/* half of cycle time (100ns according to datasheet), AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */
+  /* sck_clock_hz = */ 4000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		/* active high, rising edge */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 40,	/* st7565 datasheet, table 24, tds8 */

src/clib/u8x8_d_st7920.c

@@ -156,6 +156,7 @@ static const u8x8_display_info_t u8x8_st7920_192x32_display_info =
   /* post_reset_wait_ms = */ 6, 
   /* sda_setup_time_ns = */ 20,		
   /* sck_pulse_width_ns = */  140,	/* datasheet ST7920 */
+  /* sck_clock_hz = */ 1000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		/* old: sck_takeover_edge, new: active high (bit 1), rising edge (bit 0) */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 30,
@@ -179,6 +180,7 @@ static const u8x8_display_info_t u8x8_st7920_128x64_display_info =
   /* post_reset_wait_ms = */ 6, 
   /* sda_setup_time_ns = */ 20,		
   /* sck_pulse_width_ns = */  140,	/* datasheet ST7920 */
+  /* sck_clock_hz = */ 1000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		/* active high, rising edge */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 30,

src/clib/u8x8_d_t6963.c

@@ -134,6 +134,7 @@ static const u8x8_display_info_t u8x8_t6963_240x128_display_info =
   /* post_reset_wait_ms = */ 6, 
   /* sda_setup_time_ns = */ 20,		
   /* sck_pulse_width_ns = */  140,	
+  /* sck_clock_hz = */ 1000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 80,
@@ -220,6 +221,7 @@ static const u8x8_display_info_t u8x8_t6963_256x64_display_info =
   /* post_reset_wait_ms = */ 6, 
   /* sda_setup_time_ns = */ 20,		
   /* sck_pulse_width_ns = */  140,	
+  /* sck_clock_hz = */ 1000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 80,
@@ -302,6 +304,7 @@ static const u8x8_display_info_t u8x8_t6963_128x64_display_info =
   /* post_reset_wait_ms = */ 6, 
   /* sda_setup_time_ns = */ 20,		
   /* sck_pulse_width_ns = */  140,	
+  /* sck_clock_hz = */ 1000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 80,

src/clib/u8x8_d_uc1701_dogs102.c

@@ -107,6 +107,7 @@ static const u8x8_display_info_t u8x8_uc1701_display_info =
   /* post_reset_wait_ms = */ 6, 
   /* sda_setup_time_ns = */ 12,		
   /* sck_pulse_width_ns = */ 75,	/* half of cycle time (100ns according to datasheet), AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */
+  /* sck_clock_hz = */ 4000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
   /* spi_mode = */ 1,		/* active high, rising edge */
   /* i2c_bus_clock_100kHz = */ 4,
   /* data_setup_time_ns = */ 30,

src/clib/u8x8_d_uc1701_mini12864.c

@@ -0,0 +1,200 @@
+/*
+
+  u8x8_d_uc1701_mini12864.c (dealextreme, displays from ebay MP3 players)
+  
+  Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
+
+  Copyright (c) 2016, olikraus@gmail.com
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without modification, 
+  are permitted provided that the following conditions are met:
+
+  * Redistributions of source code must retain the above copyright notice, this list 
+    of conditions and the following disclaimer.
+    
+  * Redistributions in binary form must reproduce the above copyright notice, this 
+    list of conditions and the following disclaimer in the documentation and/or other 
+    materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
+  CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
+  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
+  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
+  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
+  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
+  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
+
+  
+*/
+#include "u8x8.h"
+
+
+
+
+static const uint8_t u8x8_d_uc1701_mini12864_init_seq[] = {
+    
+  U8X8_START_TRANSFER(),             	/* enable chip, delay is part of the transfer start */
+  
+  U8X8_C(0x0e2),            			/* soft reset */
+  U8X8_C(0x0ae),		                /* display off */
+  U8X8_C(0x040),		                /* set display start line to 0 */
+  
+  U8X8_C(0x0a0),		                /* ADC set to reverse */
+  U8X8_C(0x0c8),		                /* common output mode */
+  
+  U8X8_C(0x0a6),		                /* display normal, bit val 0: LCD pixel off. */
+  U8X8_C(0x0a2),		                /* LCD bias 1/9 */
+  U8X8_C(0x02f),		                /* all power  control circuits on */
+  U8X8_C(0x0f8),		/* set booster ratio to */
+  U8X8_C(0x000),		/* 4x */
+  U8X8_C(0x023),		/* set V0 voltage resistor ratio to large */
+  U8X8_C(0x081),		/* set contrast */
+  U8X8_C(0x027),		/* contrast value */
+  U8X8_C(0x0ac),		/* indicator */
+  //  0x000,		/* disable */
+  
+  U8X8_C(0x0a4),		                /* normal display  */
+  
+  U8X8_END_TRANSFER(),             	/* disable chip */
+  U8X8_END()             			/* end of sequence */
+};
+
+static const uint8_t u8x8_d_uc1701_mini12864_powersave0_seq[] = {
+  U8X8_START_TRANSFER(),             	/* enable chip, delay is part of the transfer start */
+  U8X8_C(0x0af),		                /* display on */
+  U8X8_END_TRANSFER(),             	/* disable chip */
+  U8X8_END()             			/* end of sequence */
+};
+
+static const uint8_t u8x8_d_uc1701_mini12864_powersave1_seq[] = {
+  U8X8_START_TRANSFER(),             	/* enable chip, delay is part of the transfer start */
+  U8X8_C(0x0ae),		                /* display off */
+  U8X8_END_TRANSFER(),             	/* disable chip */
+  U8X8_END()             			/* end of sequence */
+};
+
+static const uint8_t u8x8_d_uc1701_mini12864_flip0_seq[] = {
+  U8X8_START_TRANSFER(),             	/* enable chip, delay is part of the transfer start */
+  U8X8_C(0x0a1),				/* segment remap a0/a1*/
+  U8X8_C(0x0c0),				/* c0: scan dir normal, c8: reverse */
+  U8X8_END_TRANSFER(),             	/* disable chip */
+  U8X8_END()             			/* end of sequence */
+};
+
+static const uint8_t u8x8_d_uc1701_mini12864_flip1_seq[] = {
+  U8X8_START_TRANSFER(),             	/* enable chip, delay is part of the transfer start */
+  U8X8_C(0x0a0),				/* segment remap a0/a1*/
+  U8X8_C(0x0c8),				/* c0: scan dir normal, c8: reverse */
+  U8X8_END_TRANSFER(),             	/* disable chip */
+  U8X8_END()             			/* end of sequence */
+};
+
+
+static const u8x8_display_info_t u8x8_uc1701_display_info =
+{
+  /* chip_enable_level = */ 0,
+  /* chip_disable_level = */ 1,
+  
+  /* post_chip_enable_wait_ns = */ 5,
+  /* pre_chip_disable_wait_ns = */ 5,
+  /* reset_pulse_width_ms = */ 1, 
+  /* post_reset_wait_ms = */ 6, 
+  /* sda_setup_time_ns = */ 12,		
+  /* sck_pulse_width_ns = */ 75,	/* half of cycle time (100ns according to datasheet), AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */
+  /* sck_clock_hz = */ 4000000UL,	/* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
+  /* spi_mode = */ 1,		/* active high, rising edge */
+  /* i2c_bus_clock_100kHz = */ 4,
+  /* data_setup_time_ns = */ 30,
+  /* write_pulse_width_ns = */ 40,
+  /* tile_width = */ 16,		/* width of 16*8=128 pixel */
+  /* tile_hight = */ 8,
+  /* default_x_offset = */ 0,
+  /* flipmode_x_offset = */ 30,
+  /* pixel_width = */ 128,
+  /* pixel_height = */ 64
+};
+
+uint8_t u8x8_d_uc1701_mini12864(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
+{
+  uint8_t x, c;
+  uint8_t *ptr;
+  switch(msg)
+  {
+    case U8X8_MSG_DISPLAY_SETUP_MEMORY:
+      u8x8_d_helper_display_setup_memory(u8x8, &u8x8_uc1701_display_info);
+      break;
+    case U8X8_MSG_DISPLAY_INIT:
+      u8x8_d_helper_display_init(u8x8);
+      u8x8_cad_SendSequence(u8x8, u8x8_d_uc1701_mini12864_init_seq);
+      break;
+    case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
+      if ( arg_int == 0 )
+	u8x8_cad_SendSequence(u8x8, u8x8_d_uc1701_mini12864_powersave0_seq);
+      else
+	u8x8_cad_SendSequence(u8x8, u8x8_d_uc1701_mini12864_powersave1_seq);
+      break;
+    case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
+      if ( arg_int == 0 )
+      {
+	u8x8_cad_SendSequence(u8x8, u8x8_d_uc1701_mini12864_flip0_seq);
+	u8x8->x_offset = u8x8->display_info->default_x_offset;
+      }
+      else
+      {
+	u8x8_cad_SendSequence(u8x8, u8x8_d_uc1701_mini12864_flip1_seq);
+	u8x8->x_offset = u8x8->display_info->flipmode_x_offset;
+      }	
+      break;
+#ifdef U8X8_WITH_SET_CONTRAST
+    case U8X8_MSG_DISPLAY_SET_CONTRAST:
+      u8x8_cad_StartTransfer(u8x8);
+      u8x8_cad_SendCmd(u8x8, 0x081 );
+      u8x8_cad_SendArg(u8x8, arg_int >> 2 );	/* uc1701 has range from 0 to 63 */
+      u8x8_cad_EndTransfer(u8x8);
+      break;
+#endif
+    case U8X8_MSG_DISPLAY_DRAW_TILE:
+      u8x8_cad_StartTransfer(u8x8);
+    
+      x = ((u8x8_tile_t *)arg_ptr)->x_pos;
+      x *= 8;
+      x += u8x8->x_offset;
+      u8x8_cad_SendCmd(u8x8, 0x010 | (x>>4) );
+      u8x8_cad_SendCmd(u8x8, 0x000 | ((x&15)));
+      u8x8_cad_SendCmd(u8x8, 0x0b0 | (((u8x8_tile_t *)arg_ptr)->y_pos));
+    
+      c = ((u8x8_tile_t *)arg_ptr)->cnt;
+      c *= 8;
+      ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr;
+      /* 
+	The following if condition checks the hardware limits of the uc1701 
+	controller: It is not allowed to write beyond the display limits.
+	This is in fact an issue within flip mode.
+      */
+      if ( c + x > 132u )
+      {
+	c = 132u;
+	c -= x;
+      }
+      do
+      {
+	u8x8_cad_SendData(u8x8, c, ptr);	/* note: SendData can not handle more than 255 bytes */
+	arg_int--;
+      } while( arg_int > 0 );
+      
+      u8x8_cad_EndTransfer(u8x8);
+      break;
+    default:
+      return 0;
+  }
+  return 1;
+}
+
+