You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
213 lines
8.0 KiB
213 lines
8.0 KiB
/* |
|
|
|
u8x8_d_ssd1306_64x48.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" |
|
|
|
|
|
|
|
/* EastRising 0.66 OLED */ |
|
static const uint8_t u8x8_d_ssd1306_64x48_er_init_seq[] = { |
|
|
|
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ |
|
|
|
|
|
U8X8_C(0x0ae), /* display off */ |
|
U8X8_CA(0x0d5, 0x080), /* clock divide ratio (0x00=1) and oscillator frequency (0x8) */ |
|
U8X8_CA(0x0a8, 0x02f), /* multiplex ratio, 0.66 OLED: changed from 0x1f to 0x2f */ |
|
U8X8_CA(0x0d3, 0x000), /* display offset, 0.66 OLED */ |
|
U8X8_C(0x040), /* set display start line to 0, 0.66 OLED */ |
|
U8X8_CA(0x08d, 0x014), /* [2] charge pump setting (p62): 0x014 enable, 0x010 disable, 0.66 OLED 0x14*/ |
|
U8X8_CA(0x020, 0x000), /* page addressing mode */ |
|
|
|
U8X8_C(0x0a1), /* segment remap a0/a1, 0.66 OLED */ |
|
U8X8_C(0x0c8), /* c0: scan dir normal, c8: reverse, 0.66 OLED */ |
|
// Flipmode |
|
// U8X8_C(0x0a0), /* segment remap a0/a1*/ |
|
// U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */ |
|
|
|
U8X8_CA(0x0da, 0x012), /* com pin HW config, sequential com pin config (bit 4), disable left/right remap (bit 5), 0.66 OLED */ |
|
U8X8_CA(0x081, 0x0cf), /* [2] set contrast control, 0.66 OLED datasheet: 0xcf */ |
|
U8X8_CA(0x0d9, 0x022), /* [2] pre-charge period 0x022/f1, 0.66 OLED datasheet: 0x22 */ |
|
U8X8_CA(0x0db, 0x000), /* vcomh deselect level, 0.66 OLED datasheet: 0x00 */ |
|
|
|
U8X8_C(0x02e), /* Deactivate scroll */ |
|
U8X8_C(0x0a4), /* output ram to display */ |
|
U8X8_C(0x0a6), /* none inverted normal display mode */ |
|
|
|
U8X8_END_TRANSFER(), /* disable chip */ |
|
U8X8_END() /* end of sequence */ |
|
}; |
|
|
|
static const uint8_t u8x8_d_ssd1306_64x48_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_ssd1306_64x48_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_ssd1306_64x48_flip0_seq[] = { |
|
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ |
|
U8X8_C(0x0a1), /* 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 uint8_t u8x8_d_ssd1306_64x48_flip1_seq[] = { |
|
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ |
|
U8X8_C(0x0a0), /* segment remap a0/a1*/ |
|
U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */ |
|
U8X8_END_TRANSFER(), /* disable chip */ |
|
U8X8_END() /* end of sequence */ |
|
}; |
|
|
|
|
|
static uint8_t u8x8_d_ssd1306_64x48_generic(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
|
{ |
|
uint8_t x, c; |
|
uint8_t *ptr; |
|
switch(msg) |
|
{ |
|
/* handled by the calling function |
|
case U8X8_MSG_DISPLAY_SETUP_MEMORY: |
|
u8x8_d_helper_display_setup_memory(u8x8, &u8x8_ssd1306_64x48_display_info); |
|
break; |
|
case U8X8_MSG_DISPLAY_INIT: |
|
u8x8_d_helper_display_init(u8x8); |
|
u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_64x48_er_init_seq); |
|
break; |
|
*/ |
|
case U8X8_MSG_DISPLAY_SET_POWER_SAVE: |
|
if ( arg_int == 0 ) |
|
u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_64x48_powersave0_seq); |
|
else |
|
u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_64x48_powersave1_seq); |
|
break; |
|
case U8X8_MSG_DISPLAY_SET_FLIP_MODE: |
|
if ( arg_int == 0 ) |
|
{ |
|
u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_64x48_flip0_seq); |
|
u8x8->x_offset = u8x8->display_info->default_x_offset; |
|
} |
|
else |
|
{ |
|
u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_64x48_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 ); /* ssd1306 has range from 0 to 255 */ |
|
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)); |
|
|
|
do |
|
{ |
|
c = ((u8x8_tile_t *)arg_ptr)->cnt; |
|
ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr; |
|
u8x8_cad_SendData(u8x8, c*8, 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; |
|
} |
|
|
|
|
|
static const u8x8_display_info_t u8x8_ssd1306_64x48_display_info = |
|
{ |
|
/* chip_enable_level = */ 0, |
|
/* chip_disable_level = */ 1, |
|
|
|
/* post_chip_enable_wait_ns = */ 20, |
|
/* pre_chip_disable_wait_ns = */ 10, |
|
/* reset_pulse_width_ms = */ 100, /* SSD1306: 3 us */ |
|
/* 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 = */ 8000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns, increased to 8MHz (issue 215) */ |
|
/* spi_mode = */ 0, /* active high, rising edge */ |
|
/* i2c_bus_clock_100kHz = */ 4, |
|
/* data_setup_time_ns = */ 40, |
|
/* write_pulse_width_ns = */ 150, /* SSD1306: cycle time is 300ns, so use 300/2 = 150 */ |
|
/* tile_width = */ 8, |
|
/* tile_hight = */ 6, |
|
/* default_x_offset = */ 32, |
|
/* flipmode_x_offset = */ 32, |
|
/* pixel_width = */ 64, |
|
/* pixel_height = */ 48 |
|
}; |
|
|
|
/* East Rising 0.66" OLED */ |
|
uint8_t u8x8_d_ssd1306_64x48_er(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) |
|
{ |
|
if ( msg == U8X8_MSG_DISPLAY_SETUP_MEMORY ) |
|
{ |
|
u8x8_d_helper_display_setup_memory(u8x8, &u8x8_ssd1306_64x48_display_info); |
|
return 1; |
|
} |
|
else if ( msg == U8X8_MSG_DISPLAY_INIT ) |
|
{ |
|
u8x8_d_helper_display_init(u8x8); |
|
u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_64x48_er_init_seq); |
|
return 1; |
|
} |
|
return u8x8_d_ssd1306_64x48_generic(u8x8, msg, arg_int, arg_ptr); |
|
} |
|
|
|
|
|
|