Diff: u8g_dev_pcd8544_84x48.c

Revision:

0:972874f31c98

diff -r 000000000000 -r 972874f31c98 u8g_dev_pcd8544_84x48.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/u8g_dev_pcd8544_84x48.c	Wed Mar 07 12:49:14 2018 +0000
@@ -0,0 +1,112 @@
+/*
+
+  u8g_dev_pcd8544_84x48.c
+  
+  Display: Nokia 84x48
+  
+  Status: Tested with PCF8812 Display
+  
+
+  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.  
+  
+  
+*/
+
+#include "u8g.h"
+
+#define WIDTH 84
+#define HEIGHT 48
+#define PAGE_HEIGHT 8
+
+
+static const uint8_t u8g_dev_pcd8544_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 */
+  0x0c0,		/* 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_pcd8544_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_pcd8544_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_PB_DEV(u8g_dev_pcd8544_84x48_sw_spi , WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_pcd8544_fn, U8G_COM_SW_SPI);
+U8G_PB_DEV(u8g_dev_pcd8544_84x48_hw_spi , WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_pcd8544_fn, U8G_COM_HW_SPI);
+
+