Displays distance to start location on OLED screen.

Dependencies:   mbed

Revision:
0:972874f31c98
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/u8g_dev_pcf8812_96x65.c	Wed Mar 07 12:49:14 2018 +0000
@@ -0,0 +1,125 @@
+/*
+
+  u8g_dev_pcf8812_96x65.c
+  
+  Display: Nokia 96x65
+
+  Universal 8bit Graphics Library
+  
+  Copyright (c) 2011, 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.  
+  
+
+  
+  om6206        comaptible to pcf8812 ?
+  
+  Status: Tested 
+
+
+  Display                                               Controller              Seen in
+  LPH7366 (9 pins, 84x48)                       PCD8544                Nokia 5110 / 5120 / 5130 / 5160 / 6110 / 6150 
+  LPH7677 (8 pins, 84x48)                       PCD8544                         Nokia 3210
+  LPH7779 (8 pins, 84x48)                       PCD8544                         Nokia 3310 / 3315 / 3330 / 3110, also 3410?
+  ???                                                          PCD8544                          Nokia 5110 / 6110
+  LPH7690 ?  (96x65)                                 PCF8455/OM6202          Nokia 3410
+  LPH7690 ? (96x65?)                               SED1565/S1D15605        Nokia 7110 / 3510?
+  LPH7690                                                     ???                                     Nokia 6210
+
+
+  
+*/
+
+#include "u8g.h"
+
+#define WIDTH 96
+#define HEIGHT 65
+#define PAGE_HEIGHT 8
+
+
+static const uint8_t u8g_dev_pcf8812_init_seq[] PROGMEM = {
+  U8G_ESC_CS(0),             /* disable chip */
+  U8G_ESC_ADR(0),           /* instruction mode */
+  U8G_ESC_RST(1),           /* do reset low pulse with (1*16)+2 milliseconds */
+  U8G_ESC_CS(1),             /* enable chip */
+  0x021,		                /* activate chip (PD=0), horizontal increment (V=0), enter extended command set (H=1) */
+  0x006,		                /* temp. control: b10 = 2 */
+  0x013,		                /* bias system 1:48 */
+  0x080 | 0x040,		/* medium Vop */
+  0x020,		                /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */
+  0x00c,		                /* display on, normal operation */
+  U8G_ESC_DLY(100),       /* delay 100 ms */
+  0x020,		                /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */
+  0x00d,		                /* display on, invert */
+  U8G_ESC_DLY(100),       /* delay 100 ms */
+  U8G_ESC_DLY(100),       /* delay 100 ms */
+  0x020,		                /* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */
+  0x00c,		                /* display on, normal */
+  U8G_ESC_DLY(100),       /* delay 100 ms */
+  U8G_ESC_CS(0),             /* disable chip */
+  U8G_ESC_END                /* end of sequence */
+};
+
+uint8_t u8g_dev_pcf8812_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
+{
+  switch(msg)
+  {
+    case U8G_DEV_MSG_INIT:
+      u8g_InitCom(u8g, dev, U8G_SPI_CLK_CYCLE_400NS);
+      u8g_WriteEscSeqP(u8g, dev, u8g_dev_pcf8812_init_seq);
+      break;
+    case U8G_DEV_MSG_STOP:
+      break;
+    case U8G_DEV_MSG_PAGE_NEXT:
+      {
+        u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
+        u8g_SetAddress(u8g, dev, 0);           /* command mode */
+        u8g_SetChipSelect(u8g, dev, 1);
+        u8g_WriteByte(u8g, dev, 0x020 );		/* activate chip (PD=0), horizontal increment (V=0), enter normal command set (H=0) */
+        u8g_WriteByte(u8g, dev, 0x080 );                        /* set X address */
+        u8g_WriteByte(u8g, dev, 0x040 | pb->p.page); /* set Y address */
+        u8g_SetAddress(u8g, dev, 1);           /* data mode */
+        if ( u8g_pb_WriteBuffer(pb, u8g, dev) == 0 )
+          return 0;
+        u8g_SetChipSelect(u8g, dev, 0);
+      }
+      break;
+    case U8G_DEV_MSG_CONTRAST:
+      /* the contrast adjustment does not work, needs to be analysed */
+      u8g_SetAddress(u8g, dev, 0);          /* instruction mode */
+      u8g_SetChipSelect(u8g, dev, 1);
+      u8g_WriteByte(u8g, dev, 0x021);        /* command mode, extended function set */
+      u8g_WriteByte(u8g, dev, 0x080 | ( (*(uint8_t *)arg) >> 1 ) );
+      u8g_SetChipSelect(u8g, dev, 0);
+      return 1;
+  }
+  return u8g_dev_pb8v1_base_fn(u8g, dev, msg, arg);
+}
+
+/* u8g_com_arduino_sw_spi_fn does not work, too fast??? */
+U8G_PB_DEV(u8g_dev_pcf8812_96x65_sw_spi , WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_pcf8812_fn, U8G_COM_SW_SPI);
+U8G_PB_DEV(u8g_dev_pcf8812_96x65_hw_spi , WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_pcf8812_fn, U8G_COM_HW_SPI);
+