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lc7981

This commit is contained in:
olikraus 2016-12-31 11:12:25 +01:00
parent 2f93aff751
commit 58a3409ad7
5 changed files with 241 additions and 1 deletions
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2
ChangeLog
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@ -77,3 +77,5 @@ https://github.com/olikraus/u8g2 ChangeLog
2016-12-xx v2.10.x olikraus@gmail.com
* ST7565 LM6059 Display (issue 123)
* SSD1606 eInk/ePaper Display (issue 100)
* Documentation updates

7
cppsrc/U8x8lib.cpp
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@ -341,6 +341,12 @@ extern "C" uint8_t u8x8_byte_arduino_hw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t a
switch(msg)
{
case U8X8_MSG_BYTE_SEND:
// 1.6.5 offers a block transfer, but the problem is, that the
// buffer is overwritten with the incoming data
// so it can not be used...
// SPI.transfer((uint8_t *)arg_ptr, arg_int);
data = (uint8_t *)arg_ptr;
while( arg_int > 0 )
{
@ -348,6 +354,7 @@ extern "C" uint8_t u8x8_byte_arduino_hw_spi(u8x8_t *u8x8, uint8_t msg, uint8_t a
data++;
arg_int--;
}
break;
case U8X8_MSG_BYTE_INIT:
/* disable chipselect */

1
csrc/u8x8.h
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@ -747,6 +747,7 @@ uint8_t u8x8_d_ks0108_128x64(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *a
uint8_t u8x8_d_ks0108_erm19264(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
uint8_t u8x8_d_pcd8544_84x48(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
uint8_t u8x8_d_ssd1606_172x72(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
uint8_t u8x8_d_lc7981_160x80(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);

230
csrc/u8x8_d_lc7981.c Normal file
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@ -0,0 +1,230 @@
/*
u8x8_d_lc7981.c
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"
/* no powersave mode for the LC7981 */
static const uint8_t u8x8_d_lc7981_powersave0_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
static const uint8_t u8x8_d_lc7981_powersave1_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
/* no hardware flip for the LC7981 */
static const uint8_t u8x8_d_lc7981_flip0_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
static const uint8_t u8x8_d_lc7981_flip1_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
static uint8_t u8x8_d_lc7981_common(u8x8_t *u8x8, uint8_t msg, U8X8_UNUSED uint8_t arg_int, void *arg_ptr)
{
uint8_t y, c, i;
uint8_t *ptr;
switch(msg)
{
case U8X8_MSG_DISPLAY_DRAW_TILE:
y = (((u8x8_tile_t *)arg_ptr)->y_pos);
y*=8;
y*= u8x8->display_info->tile_width;
/* x = ((u8x8_tile_t *)arg_ptr)->x_pos; x is ignored... no u8x8 support */
u8x8_cad_StartTransfer(u8x8);
/*
Tile structure is reused here for the t6963, however u8x8 is not supported
tile_ptr points to data which has cnt*8 bytes (same as SSD1306 tiles)
Buffer is expected to have 8 lines of code fitting to the t6963 internal memory
"cnt" includes the number of horizontal bytes. width is equal to cnt*8
x is assumed to be zero
TODO: Consider arg_int, however arg_int is not used by u8g2
*/
c = ((u8x8_tile_t *)arg_ptr)->cnt; /* number of tiles */
ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr; /* data ptr to the tiles */
for( i = 0; i < 8; i++ )
{
u8x8_cad_SendCmd(u8x8, 0x0a ); /* display ram (cursor) address low byte */
u8x8_cad_SendArg(u8x8, y&255);
u8x8_cad_SendCmd(u8x8, 0x0b ); /* display ram (cursor) address high byte */
u8x8_cad_SendArg(u8x8, y>>8);
u8x8_cad_SendCmd(u8x8, 0x0c ); /* write start */
u8x8_cad_SendData(u8x8, c, ptr); /* note: SendData can not handle more than 255 bytes, send one line of data */
ptr += u8x8->display_info->tile_width;
y += u8x8->display_info->tile_width;
}
u8x8_cad_EndTransfer(u8x8);
break;
/* handled in the calling procedure
case U8X8_MSG_DISPLAY_SETUP_MEMORY:
u8x8_d_helper_display_setup_memory(u8x8, &u8x8_lc7981_128x64_display_info);
break;
case U8X8_MSG_DISPLAY_INIT:
u8x8_d_helper_display_init(u8x8);
u8x8_cad_SendSequence(u8x8, u8x8_d_uc1701_dogs102_init_seq);
break;
*/
/* power save is not there...
case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
if ( arg_int == 0 )
u8x8_cad_SendSequence(u8x8, u8x8_d_lc7981_powersave0_seq);
else
u8x8_cad_SendSequence(u8x8, u8x8_d_lc7981_powersave1_seq);
break;
*/
/* hardware flip not is not available
case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
if ( arg_int == 0 )
{
u8x8_cad_SendSequence(u8x8, u8x8_d_lc7981_flip0_seq);
u8x8->x_offset = u8x8->display_info->default_x_offset;
}
else
{
u8x8_cad_SendSequence(u8x8, u8x8_d_lc7981_flip1_seq);
u8x8->x_offset = u8x8->display_info->flipmode_x_offset;
}
break;
*/
#ifdef U8X8_WITH_SET_CONTRAST
/* no contrast setting :-(
case U8X8_MSG_DISPLAY_SET_CONTRAST:
u8x8_cad_StartTransfer(u8x8);
u8x8_cad_SendCmd(u8x8, 0x081 );
u8x8_cad_SendArg(u8x8, arg_int );
u8x8_cad_EndTransfer(u8x8);
break;
*/
#endif
default:
return 0;
}
return 1;
}
/*================================================*/
/* LC7981 160x80 LCD*/
/*
*/
static const u8x8_display_info_t u8x8_lc7981_160x80_display_info =
{
/* chip_enable_level = */ 0, /* LC7981 has a low active CS*/
/* chip_disable_level = */ 1,
/* from here... */
/* post_chip_enable_wait_ns = */ 20,
/* pre_chip_disable_wait_ns = */ 20,
/* reset_pulse_width_ms = */ 1,
/* post_reset_wait_ms = */ 10,
/* sda_setup_time_ns = */ 30,
/* sck_pulse_width_ns = */ 65, /* half of cycle time */
/* sck_clock_hz = */ 4000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */
/* spi_mode = */ 0, /* active high, rising edge */
/* i2c_bus_clock_100kHz = */ 4,
/* ... to here, values are ignored, because this is a parallel interface only */
/* data_setup_time_ns = */ 220,
/* write_pulse_width_ns = */ 20,
/* tile_width = */ 20, /* width of 20*8=160 pixel */
/* tile_hight = */ 10,
/* default_x_offset = */ 0,
/* flipmode_x_offset = */ 0,
/* pixel_width = */ 160,
/* pixel_height = */ 80
};
static const uint8_t u8x8_d_lc7981_160x80_init_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_DLY(50),
U8X8_CA(0x00, 0x32), /* display on (bit 5), master mode on (bit 4), graphics mode on (bit 1) */
U8X8_CA(0x01, 0x07), /* character/bits per pixel pitch */
U8X8_CA(0x02, 160/8-1), /* number of chars/byte width of the screen */
U8X8_CA(0x03, 0x50), /* time division: 50 (1/80 duty cycle) */
U8X8_CA(0x08, 0x00), /* display start low */
U8X8_CA(0x09, 0x00), /* display start high */
U8X8_DLY(10),
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
uint8_t u8x8_d_lc7981_160x80(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
/* call common procedure first and handle messages there */
if ( u8x8_d_lc7981_common(u8x8, msg, arg_int, arg_ptr) == 0 )
{
/* msg not handled, then try here */
switch(msg)
{
case U8X8_MSG_DISPLAY_SETUP_MEMORY:
u8x8_d_helper_display_setup_memory(u8x8, &u8x8_lc7981_160x80_display_info);
break;
case U8X8_MSG_DISPLAY_INIT:
u8x8_d_helper_display_init(u8x8);
u8x8_cad_SendSequence(u8x8, u8x8_d_lc7981_160x80_init_seq);
break;
default:
return 0; /* msg unknown */
}
}
return 1;
}

2
sys/arduino/u8g2_page_buffer/FPS/FPS.ino
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@ -203,7 +203,7 @@
// Please update the pin numbers according to your setup. Use U8X8_PIN_NONE if the reset pin is not connected
//U8G2_SSD1306_128X64_NONAME_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//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_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=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE); // All Boards without Reset of the Display