comparison: components/u8g2/csrc/u8x8_d_ssd1306_96x16.c
components/u8g2/csrc/u8x8_d_ssd1306_96x16.c
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| 1 /* | |
| 2 | |
| 3 u8x8_d_ssd1306_96x16.c | |
| 4 | |
| 5 Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/) | |
| 6 | |
| 7 Copyright (c) 2016, olikraus@gmail.com | |
| 8 All rights reserved. | |
| 9 | |
| 10 Redistribution and use in source and binary forms, with or without modification, | |
| 11 are permitted provided that the following conditions are met: | |
| 12 | |
| 13 * Redistributions of source code must retain the above copyright notice, this list | |
| 14 of conditions and the following disclaimer. | |
| 15 | |
| 16 * Redistributions in binary form must reproduce the above copyright notice, this | |
| 17 list of conditions and the following disclaimer in the documentation and/or other | |
| 18 materials provided with the distribution. | |
| 19 | |
| 20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND | |
| 21 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | |
| 22 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 23 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 24 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR | |
| 25 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 26 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 27 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 28 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| 29 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 30 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 31 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| 32 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 33 | |
| 34 */ | |
| 35 | |
| 36 | |
| 37 #include "u8x8.h" | |
| 38 | |
| 39 | |
| 40 | |
| 41 /* EastRising 0.69 OLED */ | |
| 42 static const uint8_t u8x8_d_ssd1306_96x16_er_init_seq[] = { | |
| 43 | |
| 44 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 45 | |
| 46 | |
| 47 U8X8_C(0x0ae), /* display off */ | |
| 48 U8X8_CA(0x0d5, 0x080), /* clock divide ratio (0x00=1) and oscillator frequency (0x8) */ | |
| 49 U8X8_CA(0x0a8, 0x00f), /* multiplex ratio, 0.69 OLED: 0x0f */ | |
| 50 U8X8_CA(0x0d3, 0x000), /* display offset, 0.69 OLED */ | |
| 51 U8X8_C(0x040), /* set display start line to 0, 0.69 OLED */ | |
| 52 U8X8_CA(0x08d, 0x014), /* [2] charge pump setting (p62): 0x014 enable, 0x010 disable, 0.66 OLED 0x14*/ | |
| 53 U8X8_CA(0x020, 0x000), /* page addressing mode */ | |
| 54 | |
| 55 U8X8_C(0x0a1), /* segment remap a0/a1, 0.66 OLED */ | |
| 56 U8X8_C(0x0c8), /* c0: scan dir normal, c8: reverse, 0.66 OLED */ | |
| 57 // Flipmode | |
| 58 // U8X8_C(0x0a0), /* segment remap a0/a1*/ | |
| 59 // U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */ | |
| 60 | |
| 61 U8X8_CA(0x0da, 0x002), /* com pin HW config, sequential com pin config (bit 4), disable left/right remap (bit 5), 0.66 OLED */ | |
| 62 U8X8_CA(0x081, 0x0af), /* [2] set contrast control, 0.69 OLED datasheet: 0xaf */ | |
| 63 U8X8_CA(0x0d9, 0x0f1), /* [2] pre-charge period 0x0f1, 0.69 OLED datasheet: 0xf1 */ | |
| 64 U8X8_CA(0x0db, 0x020), /* vcomh deselect level, 0.69 OLED datasheet: 0x20 */ | |
| 65 | |
| 66 U8X8_C(0x02e), /* Deactivate scroll */ | |
| 67 U8X8_C(0x0a4), /* output ram to display */ | |
| 68 U8X8_C(0x0a6), /* none inverted normal display mode */ | |
| 69 | |
| 70 U8X8_END_TRANSFER(), /* disable chip */ | |
| 71 U8X8_END() /* end of sequence */ | |
| 72 }; | |
| 73 | |
| 74 static const uint8_t u8x8_d_ssd1306_96x16_powersave0_seq[] = { | |
| 75 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 76 U8X8_C(0x0af), /* display on */ | |
| 77 U8X8_END_TRANSFER(), /* disable chip */ | |
| 78 U8X8_END() /* end of sequence */ | |
| 79 }; | |
| 80 | |
| 81 static const uint8_t u8x8_d_ssd1306_96x16_powersave1_seq[] = { | |
| 82 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 83 U8X8_C(0x0ae), /* display off */ | |
| 84 U8X8_END_TRANSFER(), /* disable chip */ | |
| 85 U8X8_END() /* end of sequence */ | |
| 86 }; | |
| 87 | |
| 88 static const uint8_t u8x8_d_ssd1306_96x16_flip0_seq[] = { | |
| 89 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 90 U8X8_C(0x0a1), /* segment remap a0/a1*/ | |
| 91 U8X8_C(0x0c8), /* c0: scan dir normal, c8: reverse */ | |
| 92 U8X8_END_TRANSFER(), /* disable chip */ | |
| 93 U8X8_END() /* end of sequence */ | |
| 94 }; | |
| 95 | |
| 96 static const uint8_t u8x8_d_ssd1306_96x16_flip1_seq[] = { | |
| 97 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 98 U8X8_C(0x0a0), /* segment remap a0/a1*/ | |
| 99 U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */ | |
| 100 U8X8_END_TRANSFER(), /* disable chip */ | |
| 101 U8X8_END() /* end of sequence */ | |
| 102 }; | |
| 103 | |
| 104 | |
| 105 static uint8_t u8x8_d_ssd1306_96x16_generic(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) | |
| 106 { | |
| 107 uint8_t x, c; | |
| 108 uint8_t *ptr; | |
| 109 switch(msg) | |
| 110 { | |
| 111 /* handled by the calling function | |
| 112 case U8X8_MSG_DISPLAY_SETUP_MEMORY: | |
| 113 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_ssd1306_96x16_display_info); | |
| 114 break; | |
| 115 case U8X8_MSG_DISPLAY_INIT: | |
| 116 u8x8_d_helper_display_init(u8x8); | |
| 117 u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_96x16_er_init_seq); | |
| 118 break; | |
| 119 */ | |
| 120 case U8X8_MSG_DISPLAY_SET_POWER_SAVE: | |
| 121 if ( arg_int == 0 ) | |
| 122 u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_96x16_powersave0_seq); | |
| 123 else | |
| 124 u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_96x16_powersave1_seq); | |
| 125 break; | |
| 126 case U8X8_MSG_DISPLAY_SET_FLIP_MODE: | |
| 127 if ( arg_int == 0 ) | |
| 128 { | |
| 129 u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_96x16_flip0_seq); | |
| 130 u8x8->x_offset = u8x8->display_info->default_x_offset; | |
| 131 } | |
| 132 else | |
| 133 { | |
| 134 u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_96x16_flip1_seq); | |
| 135 u8x8->x_offset = u8x8->display_info->flipmode_x_offset; | |
| 136 } | |
| 137 break; | |
| 138 #ifdef U8X8_WITH_SET_CONTRAST | |
| 139 case U8X8_MSG_DISPLAY_SET_CONTRAST: | |
| 140 u8x8_cad_StartTransfer(u8x8); | |
| 141 u8x8_cad_SendCmd(u8x8, 0x081 ); | |
| 142 u8x8_cad_SendArg(u8x8, arg_int ); /* ssd1306 has range from 0 to 255 */ | |
| 143 u8x8_cad_EndTransfer(u8x8); | |
| 144 break; | |
| 145 #endif | |
| 146 case U8X8_MSG_DISPLAY_DRAW_TILE: | |
| 147 u8x8_cad_StartTransfer(u8x8); | |
| 148 x = ((u8x8_tile_t *)arg_ptr)->x_pos; | |
| 149 x *= 8; | |
| 150 x += u8x8->x_offset; | |
| 151 u8x8_cad_SendCmd(u8x8, 0x010 | (x>>4) ); | |
| 152 u8x8_cad_SendCmd(u8x8, 0x000 | ((x&15))); | |
| 153 u8x8_cad_SendCmd(u8x8, 0x0b0 | (((u8x8_tile_t *)arg_ptr)->y_pos)); | |
| 154 | |
| 155 do | |
| 156 { | |
| 157 c = ((u8x8_tile_t *)arg_ptr)->cnt; | |
| 158 ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr; | |
| 159 u8x8_cad_SendData(u8x8, c*8, ptr); /* note: SendData can not handle more than 255 bytes */ | |
| 160 arg_int--; | |
| 161 } while( arg_int > 0 ); | |
| 162 | |
| 163 u8x8_cad_EndTransfer(u8x8); | |
| 164 break; | |
| 165 default: | |
| 166 return 0; | |
| 167 } | |
| 168 return 1; | |
| 169 } | |
| 170 | |
| 171 | |
| 172 static const u8x8_display_info_t u8x8_ssd1306_96x16_display_info = | |
| 173 { | |
| 174 /* chip_enable_level = */ 0, | |
| 175 /* chip_disable_level = */ 1, | |
| 176 | |
| 177 /* post_chip_enable_wait_ns = */ 20, | |
| 178 /* pre_chip_disable_wait_ns = */ 10, | |
| 179 /* reset_pulse_width_ms = */ 100, /* SSD1306: 3 us */ | |
| 180 /* post_reset_wait_ms = */ 100, /* OLEDs need much longer setup time */ | |
| 181 /* sda_setup_time_ns = */ 50, /* SSD1306: 15ns, but cycle time is 100ns, so use 100/2 */ | |
| 182 /* sck_pulse_width_ns = */ 50, /* SSD1306: 20ns, but cycle time is 100ns, so use 100/2, AVR: below 70: 8 MHz, >= 70 --> 4MHz clock */ | |
| 183 /* 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) */ | |
| 184 /* spi_mode = */ 0, /* active high, rising edge */ | |
| 185 /* i2c_bus_clock_100kHz = */ 4, | |
| 186 /* data_setup_time_ns = */ 40, | |
| 187 /* write_pulse_width_ns = */ 150, /* SSD1306: cycle time is 300ns, so use 300/2 = 150 */ | |
| 188 /* tile_width = */ 12, | |
| 189 /* tile_hight = */ 2, | |
| 190 /* default_x_offset = */ 0, | |
| 191 /* flipmode_x_offset = */ 32, | |
| 192 /* pixel_width = */ 96, | |
| 193 /* pixel_height = */ 16 | |
| 194 }; | |
| 195 | |
| 196 /* East Rising 0.69" OLED */ | |
| 197 uint8_t u8x8_d_ssd1306_96x16_er(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) | |
| 198 { | |
| 199 if ( msg == U8X8_MSG_DISPLAY_SETUP_MEMORY ) | |
| 200 { | |
| 201 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_ssd1306_96x16_display_info); | |
| 202 return 1; | |
| 203 } | |
| 204 else if ( msg == U8X8_MSG_DISPLAY_INIT ) | |
| 205 { | |
| 206 u8x8_d_helper_display_init(u8x8); | |
| 207 u8x8_cad_SendSequence(u8x8, u8x8_d_ssd1306_96x16_er_init_seq); | |
| 208 return 1; | |
| 209 } | |
| 210 return u8x8_d_ssd1306_96x16_generic(u8x8, msg, arg_int, arg_ptr); | |
| 211 } | |
| 212 | |
| 213 |
