176 lines
6.7 KiB
C
176 lines
6.7 KiB
C
|
/*
|
||
|
|
|
||
|
|
u8g_dev_st7920_128x64.c
|
||
|
|
|
||
|
|
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 128
|
||
|
|
#define HEIGHT 64
|
||
|
|
#define PAGE_HEIGHT 8
|
||
|
|
|
||
|
|
|
||
|
|
/* init sequence from https://github.com/adafruit/ST7565-LCD/blob/master/ST7565/ST7565.cpp */
|
||
|
|
static const uint8_t u8g_dev_st7920_128x64_init_seq[] PROGMEM = {
|
||
|
|
U8G_ESC_CS(0), /* disable chip */
|
||
|
|
U8G_ESC_ADR(0), /* instruction mode */
|
||
|
|
U8G_ESC_RST(15), /* do reset low pulse with (15*16)+2 milliseconds (=maximum delay)*/
|
||
|
|
U8G_ESC_DLY(100), /* 8 Dez 2012: additional delay 100 ms because of reset*/
|
||
|
|
U8G_ESC_CS(1), /* enable chip */
|
||
|
|
U8G_ESC_DLY(50), /* delay 50 ms */
|
||
|
|
|
||
|
|
0x038, /* 8 Bit interface (DL=1), basic instruction set (RE=0) */
|
||
|
|
0x00c, /* display on, cursor & blink off; 0x08: all off */
|
||
|
|
0x006, /* Entry mode: Cursor move to right ,DDRAM address counter (AC) plus 1, no shift */
|
||
|
|
0x002, /* disable scroll, enable CGRAM adress */
|
||
|
|
0x001, /* clear RAM, needs 1.6 ms */
|
||
|
|
U8G_ESC_DLY(100), /* delay 100 ms */
|
||
|
|
|
||
|
|
U8G_ESC_CS(0), /* disable chip */
|
||
|
|
U8G_ESC_END /* end of sequence */
|
||
|
|
};
|
||
|
|
|
||
|
|
uint8_t u8g_dev_st7920_128x64_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_st7920_128x64_init_seq);
|
||
|
|
break;
|
||
|
|
case U8G_DEV_MSG_STOP:
|
||
|
|
break;
|
||
|
|
case U8G_DEV_MSG_PAGE_NEXT:
|
||
|
|
{
|
||
|
|
uint8_t y, i;
|
||
|
|
uint8_t *ptr;
|
||
|
|
u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
|
||
|
|
|
||
|
|
u8g_SetAddress(u8g, dev, 0); /* cmd mode */
|
||
|
|
u8g_SetChipSelect(u8g, dev, 1);
|
||
|
|
y = pb->p.page_y0;
|
||
|
|
ptr = pb->buf;
|
||
|
|
for( i = 0; i < 8; i ++ )
|
||
|
|
{
|
||
|
|
u8g_SetAddress(u8g, dev, 0); /* cmd mode */
|
||
|
|
u8g_WriteByte(u8g, dev, 0x03e ); /* enable extended mode */
|
||
|
|
|
||
|
|
if ( y < 32 )
|
||
|
|
{
|
||
|
|
u8g_WriteByte(u8g, dev, 0x080 | y ); /* y pos */
|
||
|
|
u8g_WriteByte(u8g, dev, 0x080 ); /* set x pos to 0*/
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
u8g_WriteByte(u8g, dev, 0x080 | (y-32) ); /* y pos */
|
||
|
|
u8g_WriteByte(u8g, dev, 0x080 | 8); /* set x pos to 64*/
|
||
|
|
}
|
||
|
|
|
||
|
|
u8g_SetAddress(u8g, dev, 1); /* data mode */
|
||
|
|
u8g_WriteSequence(u8g, dev, WIDTH/8, ptr);
|
||
|
|
ptr += WIDTH/8;
|
||
|
|
y++;
|
||
|
|
}
|
||
|
|
u8g_SetChipSelect(u8g, dev, 0);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return u8g_dev_pb8h1_base_fn(u8g, dev, msg, arg);
|
||
|
|
}
|
||
|
|
|
||
|
|
uint8_t u8g_dev_st7920_128x64_4x_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_st7920_128x64_init_seq);
|
||
|
|
break;
|
||
|
|
case U8G_DEV_MSG_STOP:
|
||
|
|
break;
|
||
|
|
case U8G_DEV_MSG_PAGE_NEXT:
|
||
|
|
{
|
||
|
|
uint8_t y, i;
|
||
|
|
uint8_t *ptr;
|
||
|
|
u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
|
||
|
|
|
||
|
|
u8g_SetAddress(u8g, dev, 0); /* cmd mode */
|
||
|
|
u8g_SetChipSelect(u8g, dev, 1);
|
||
|
|
y = pb->p.page_y0;
|
||
|
|
ptr = pb->buf;
|
||
|
|
for( i = 0; i < 32; i ++ )
|
||
|
|
{
|
||
|
|
u8g_SetAddress(u8g, dev, 0); /* cmd mode */
|
||
|
|
u8g_WriteByte(u8g, dev, 0x03e ); /* enable extended mode */
|
||
|
|
|
||
|
|
if ( y < 32 )
|
||
|
|
{
|
||
|
|
u8g_WriteByte(u8g, dev, 0x080 | y ); /* y pos */
|
||
|
|
u8g_WriteByte(u8g, dev, 0x080 ); /* set x pos to 0*/
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
u8g_WriteByte(u8g, dev, 0x080 | (y-32) ); /* y pos */
|
||
|
|
u8g_WriteByte(u8g, dev, 0x080 | 8); /* set x pos to 64*/
|
||
|
|
}
|
||
|
|
|
||
|
|
u8g_SetAddress(u8g, dev, 1); /* data mode */
|
||
|
|
u8g_WriteSequence(u8g, dev, WIDTH/8, ptr);
|
||
|
|
ptr += WIDTH/8;
|
||
|
|
y++;
|
||
|
|
}
|
||
|
|
u8g_SetChipSelect(u8g, dev, 0);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return u8g_dev_pb32h1_base_fn(u8g, dev, msg, arg);
|
||
|
|
}
|
||
|
|
|
||
|
|
U8G_PB_DEV(u8g_dev_st7920_128x64_sw_spi, WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_st7920_128x64_fn, U8G_COM_ST7920_SW_SPI);
|
||
|
|
U8G_PB_DEV(u8g_dev_st7920_128x64_hw_spi, WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_st7920_128x64_fn, U8G_COM_ST7920_HW_SPI);
|
||
|
|
U8G_PB_DEV(u8g_dev_st7920_128x64_8bit, WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_st7920_128x64_fn, U8G_COM_FAST_PARALLEL);
|
||
|
|
U8G_PB_DEV(u8g_dev_st7920_128x64_custom, WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_st7920_128x64_fn, u8g_com_arduino_st7920_custom_fn);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#define QWIDTH (WIDTH*4)
|
||
|
|
uint8_t u8g_dev_st7920_128x64_4x_buf[QWIDTH] U8G_NOCOMMON ;
|
||
|
|
u8g_pb_t u8g_dev_st7920_128x64_4x_pb = { {32, HEIGHT, 0, 0, 0}, WIDTH, u8g_dev_st7920_128x64_4x_buf};
|
||
|
|
u8g_dev_t u8g_dev_st7920_128x64_4x_sw_spi = { u8g_dev_st7920_128x64_4x_fn, &u8g_dev_st7920_128x64_4x_pb, U8G_COM_ST7920_SW_SPI };
|
||
|
|
u8g_dev_t u8g_dev_st7920_128x64_4x_hw_spi = { u8g_dev_st7920_128x64_4x_fn, &u8g_dev_st7920_128x64_4x_pb, U8G_COM_ST7920_HW_SPI };
|
||
|
|
u8g_dev_t u8g_dev_st7920_128x64_4x_8bit = { u8g_dev_st7920_128x64_4x_fn, &u8g_dev_st7920_128x64_4x_pb, U8G_COM_FAST_PARALLEL };
|
||
|
|
u8g_dev_t u8g_dev_st7920_128x64_4x_custom = { u8g_dev_st7920_128x64_4x_fn, &u8g_dev_st7920_128x64_4x_pb, u8g_com_arduino_st7920_custom_fn };
|
||
|
|
|
||
|
|
|