comparison: components/u8g2/csrc/u8x8_d_st7528.c
components/u8g2/csrc/u8x8_d_st7528.c
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| 1 /* | |
| 2 | |
| 3 u8x8_d_st7528.c | |
| 4 | |
| 5 Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/) | |
| 6 | |
| 7 Copyright (c) 2019, 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 ST7528: 16 Graylevel Controller | |
| 35 https://github.com/olikraus/u8g2/issues/986 | |
| 36 I2C Address: 0x03f (0x7e) | |
| 37 | |
| 38 */ | |
| 39 | |
| 40 | |
| 41 #include "u8x8.h" | |
| 42 | |
| 43 | |
| 44 /* NHD C160100 */ | |
| 45 static const uint8_t u8x8_d_st7528_nhd_c160100_init_seq[] = { | |
| 46 | |
| 47 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 48 | |
| 49 | |
| 50 /* | |
| 51 I2C_out(0x48);//partial display duty ratio | |
| 52 I2C_out(0x64);// 1/100 duty | |
| 53 I2C_out(0xA0);//ADC select | |
| 54 I2C_out(0xC8);//SHL select | |
| 55 I2C_out(0x44);//initial Com0 register | |
| 56 I2C_out(0x00);//scan from Com0 | |
| 57 I2C_out(0xAB);//OSC on | |
| 58 I2C_out(0x26);// | |
| 59 I2C_out(0x81); //set electronic volume | |
| 60 I2C_out(0x15);//vopcode=0x1C | |
| 61 I2C_out(0x56);//set 1/11 bias | |
| 62 I2C_out(0x64);//3x | |
| 63 delay(2); | |
| 64 I2C_out(0x2C);// | |
| 65 I2C_out(0x66);//5x | |
| 66 delay(2); | |
| 67 I2C_out(0x2E);// | |
| 68 delay(2); | |
| 69 I2C_out(0x2F);//power control | |
| 70 I2C_out(0xF3);//bias save circuit | |
| 71 I2C_out(0x00);// | |
| 72 I2C_out(0x96);//frc and pwm | |
| 73 I2C_out(0x38);//external mode | |
| 74 I2C_out(0x75);// | |
| 75 I2C_out(0x97);//3frc, 45 pwm THIS IS A MODE0 CMD, IT IS USELESS HERE | |
| 76 I2C_out(0x80);//start 16-level grayscale settings | |
| 77 */ | |
| 78 U8X8_CA(0x048, 0x064), /* partial display duty ratio, 1/100 duty*/ | |
| 79 U8X8_C(0x0a0), /* ADC */ | |
| 80 U8X8_C(0x0c8), /* SHL */ | |
| 81 U8X8_CA(0x044, 0x000), /* initial Com0 */ | |
| 82 U8X8_C(0x0ab), /* start oscillator */ | |
| 83 U8X8_C(0x026), /* Select the internal resistance ratio of the regulator resistor */ | |
| 84 U8X8_CA(0x081, 0x015), /* volumn */ | |
| 85 U8X8_C(0x056), /* LCD Bias */ | |
| 86 U8X8_C(0x064), /* DC DC step up */ | |
| 87 U8X8_DLY(2), | |
| 88 U8X8_C(0x02c), /* Power Control */ | |
| 89 U8X8_C(0x066), /* DC DC step up */ | |
| 90 U8X8_DLY(2), | |
| 91 U8X8_C(0x02e), /* Power Control */ | |
| 92 U8X8_DLY(2), | |
| 93 U8X8_C(0x02f), /* Power Control */ | |
| 94 U8X8_CA(0x0f3, 0x000), /* bias power save */ | |
| 95 U8X8_C(0x096), /* frc and pwm */ | |
| 96 | |
| 97 U8X8_CA(0x038, 0x075), /* ext mode 1*/ | |
| 98 | |
| 99 /* graylevel setup */ | |
| 100 U8X8_CA(0x80, 0x00), U8X8_CA(0x81, 0x00), U8X8_CA(0x82, 0x00), U8X8_CA(0x83, 0x00), | |
| 101 U8X8_CA(0x84, 0x06), U8X8_CA(0x85, 0x06), U8X8_CA(0x86, 0x06), U8X8_CA(0x87, 0x06), | |
| 102 U8X8_CA(0x88, 0x0b), U8X8_CA(0x89, 0x0b), U8X8_CA(0x8a, 0x0b), U8X8_CA(0x8b, 0x0b), | |
| 103 U8X8_CA(0x8c, 0x10), U8X8_CA(0x8d, 0x10), U8X8_CA(0x8e, 0x10), U8X8_CA(0x8f, 0x10), | |
| 104 | |
| 105 U8X8_CA(0x90, 0x15), U8X8_CA(0x91, 0x15), U8X8_CA(0x92, 0x15), U8X8_CA(0x93, 0x15), | |
| 106 U8X8_CA(0x94, 0x1a), U8X8_CA(0x95, 0x1a), U8X8_CA(0x96, 0x1a), U8X8_CA(0x97, 0x1a), | |
| 107 U8X8_CA(0x98, 0x1e), U8X8_CA(0x99, 0x1e), U8X8_CA(0x9a, 0x1e), U8X8_CA(0x9b, 0x1e), | |
| 108 U8X8_CA(0x9c, 0x23), U8X8_CA(0x9d, 0x23), U8X8_CA(0x9e, 0x23), U8X8_CA(0x9f, 0x23), | |
| 109 | |
| 110 U8X8_CA(0xa0, 0x27), U8X8_CA(0xa1, 0x27), U8X8_CA(0xa2, 0x27), U8X8_CA(0xa3, 0x27), | |
| 111 U8X8_CA(0xa4, 0x2b), U8X8_CA(0xa5, 0x2b), U8X8_CA(0xa6, 0x2b), U8X8_CA(0xa7, 0x2b), | |
| 112 U8X8_CA(0xa8, 0x2f), U8X8_CA(0xa9, 0x2f), U8X8_CA(0xaa, 0x2f), U8X8_CA(0xab, 0x2f), | |
| 113 U8X8_CA(0xac, 0x32), U8X8_CA(0xad, 0x32), U8X8_CA(0xae, 0x32), U8X8_CA(0xaf, 0x32), | |
| 114 | |
| 115 U8X8_CA(0xb0, 0x35), U8X8_CA(0xb1, 0x35), U8X8_CA(0xb2, 0x35), U8X8_CA(0xb3, 0x35), | |
| 116 U8X8_CA(0xb4, 0x38), U8X8_CA(0xb5, 0x38), U8X8_CA(0xb6, 0x38), U8X8_CA(0xb7, 0x38), | |
| 117 U8X8_CA(0xb8, 0x3a), U8X8_CA(0xb9, 0x3a), U8X8_CA(0xba, 0x3a), U8X8_CA(0xbb, 0x3a), | |
| 118 U8X8_CA(0xbc, 0x3c), U8X8_CA(0xbd, 0x3c), U8X8_CA(0xbe, 0x3c), U8X8_CA(0xbf, 0x3c), | |
| 119 | |
| 120 U8X8_CA(0x038, 0x074), /* ext mode 0*/ | |
| 121 | |
| 122 U8X8_END_TRANSFER(), /* disable chip */ | |
| 123 U8X8_END() /* end of sequence */ | |
| 124 }; | |
| 125 | |
| 126 static const uint8_t u8x8_d_st7528_powersave0_seq[] = { | |
| 127 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 128 U8X8_CA(0x038, 0x074), /* ext mode 0*/ | |
| 129 U8X8_C(0x0af), /* display on */ | |
| 130 U8X8_END_TRANSFER(), /* disable chip */ | |
| 131 U8X8_END() /* end of sequence */ | |
| 132 }; | |
| 133 | |
| 134 static const uint8_t u8x8_d_st7528_powersave1_seq[] = { | |
| 135 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 136 U8X8_CA(0x038, 0x074), /* ext mode 0*/ | |
| 137 U8X8_C(0x0ae), /* display off */ | |
| 138 U8X8_END_TRANSFER(), /* disable chip */ | |
| 139 U8X8_END() /* end of sequence */ | |
| 140 }; | |
| 141 | |
| 142 static const uint8_t u8x8_d_st7528_flip0_seq[] = { | |
| 143 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 144 U8X8_END_TRANSFER(), /* disable chip */ | |
| 145 U8X8_END() /* end of sequence */ | |
| 146 }; | |
| 147 | |
| 148 static const uint8_t u8x8_d_st7528_flip1_seq[] = { | |
| 149 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */ | |
| 150 U8X8_END_TRANSFER(), /* disable chip */ | |
| 151 U8X8_END() /* end of sequence */ | |
| 152 }; | |
| 153 | |
| 154 | |
| 155 /* | |
| 156 input: | |
| 157 one tile (8 Bytes) | |
| 158 output: | |
| 159 Tile for st7528 (32 Bytes) | |
| 160 */ | |
| 161 | |
| 162 static uint8_t u8x8_st7528_8to32_dest_buf[32]; | |
| 163 | |
| 164 static uint8_t *u8x8_st7528_8to32(U8X8_UNUSED u8x8_t *u8x8, uint8_t *ptr) | |
| 165 { | |
| 166 uint8_t v; | |
| 167 uint8_t a,b; | |
| 168 uint8_t i, j; | |
| 169 uint8_t *dest; | |
| 170 | |
| 171 for( j = 0; j < 4; j++ ) | |
| 172 { | |
| 173 dest = u8x8_st7528_8to32_dest_buf; | |
| 174 dest += j; | |
| 175 a =*ptr; | |
| 176 ptr++; | |
| 177 b = *ptr; | |
| 178 ptr++; | |
| 179 for( i = 0; i < 8; i++ ) | |
| 180 { | |
| 181 v = 0; | |
| 182 if ( a&1 ) v |= 0xf0; | |
| 183 if ( b&1 ) v |= 0x0f; | |
| 184 *dest = v; | |
| 185 dest+=4; | |
| 186 a >>= 1; | |
| 187 b >>= 1; | |
| 188 } | |
| 189 } | |
| 190 | |
| 191 return u8x8_st7528_8to32_dest_buf; | |
| 192 } | |
| 193 | |
| 194 | |
| 195 | |
| 196 | |
| 197 static uint8_t u8x8_d_st7528_generic(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) | |
| 198 { | |
| 199 uint8_t x, y, c; | |
| 200 uint8_t *ptr; | |
| 201 switch(msg) | |
| 202 { | |
| 203 /* handled by the calling function | |
| 204 case U8X8_MSG_DISPLAY_SETUP_MEMORY: | |
| 205 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_st7528_display_info); | |
| 206 break; | |
| 207 */ | |
| 208 case U8X8_MSG_DISPLAY_INIT: | |
| 209 u8x8_d_helper_display_init(u8x8); | |
| 210 u8x8_cad_SendSequence(u8x8, u8x8_d_st7528_nhd_c160100_init_seq); | |
| 211 break; | |
| 212 case U8X8_MSG_DISPLAY_SET_POWER_SAVE: | |
| 213 if ( arg_int == 0 ) | |
| 214 u8x8_cad_SendSequence(u8x8, u8x8_d_st7528_powersave0_seq); | |
| 215 else | |
| 216 u8x8_cad_SendSequence(u8x8, u8x8_d_st7528_powersave1_seq); | |
| 217 break; | |
| 218 case U8X8_MSG_DISPLAY_SET_FLIP_MODE: | |
| 219 if ( arg_int == 0 ) | |
| 220 { | |
| 221 u8x8_cad_SendSequence(u8x8, u8x8_d_st7528_flip0_seq); | |
| 222 u8x8->x_offset = u8x8->display_info->default_x_offset; | |
| 223 } | |
| 224 else | |
| 225 { | |
| 226 u8x8_cad_SendSequence(u8x8, u8x8_d_st7528_flip1_seq); | |
| 227 u8x8->x_offset = u8x8->display_info->flipmode_x_offset; | |
| 228 } | |
| 229 break; | |
| 230 #ifdef U8X8_WITH_SET_CONTRAST | |
| 231 case U8X8_MSG_DISPLAY_SET_CONTRAST: | |
| 232 u8x8_cad_StartTransfer(u8x8); | |
| 233 u8x8_cad_SendCmd(u8x8, 0x081 ); | |
| 234 u8x8_cad_SendArg(u8x8, arg_int ); /* ssd1326 has range from 0 to 255 */ | |
| 235 u8x8_cad_EndTransfer(u8x8); | |
| 236 break; | |
| 237 #endif | |
| 238 case U8X8_MSG_DISPLAY_DRAW_TILE: | |
| 239 u8x8_cad_StartTransfer(u8x8); | |
| 240 x = ((u8x8_tile_t *)arg_ptr)->x_pos; | |
| 241 x *= 4; // not clear | |
| 242 | |
| 243 y = (((u8x8_tile_t *)arg_ptr)->y_pos); | |
| 244 | |
| 245 | |
| 246 | |
| 247 do | |
| 248 { | |
| 249 c = ((u8x8_tile_t *)arg_ptr)->cnt; | |
| 250 ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr; | |
| 251 | |
| 252 do | |
| 253 { | |
| 254 u8x8_cad_SendCmd(u8x8, 0xb0 | y ); /* set page address */ | |
| 255 u8x8_cad_SendCmd(u8x8, 0x10| (x>>4) ); /* set col msb*/ | |
| 256 u8x8_cad_SendCmd(u8x8, 0x00| (x&15) ); /* set col lsb*/ | |
| 257 | |
| 258 u8x8_cad_SendData(u8x8, 32, u8x8_st7528_8to32(u8x8, ptr)); | |
| 259 | |
| 260 ptr += 8; | |
| 261 x += 4; | |
| 262 c--; | |
| 263 } while( c > 0 ); | |
| 264 | |
| 265 //x += 4; | |
| 266 arg_int--; | |
| 267 } while( arg_int > 0 ); | |
| 268 | |
| 269 u8x8_cad_EndTransfer(u8x8); | |
| 270 break; | |
| 271 default: | |
| 272 return 0; | |
| 273 } | |
| 274 return 1; | |
| 275 } | |
| 276 | |
| 277 | |
| 278 static const u8x8_display_info_t u8x8_st7528_160x100_display_info = | |
| 279 { | |
| 280 /* chip_enable_level = */ 0, | |
| 281 /* chip_disable_level = */ 1, | |
| 282 | |
| 283 /* post_chip_enable_wait_ns = */ 20, | |
| 284 /* pre_chip_disable_wait_ns = */ 20, | |
| 285 /* reset_pulse_width_ms = */ 5, | |
| 286 /* post_reset_wait_ms = */ 5, /**/ | |
| 287 /* sda_setup_time_ns = */ 20, /* st7528 */ | |
| 288 /* sck_pulse_width_ns = */ 25, /* st7528 */ | |
| 289 /* sck_clock_hz = */ 8000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */ | |
| 290 /* st7528 actually allows 20MHz according to the datasheet */ | |
| 291 /* spi_mode = */ 0, /* active high, rising edge */ | |
| 292 /* i2c_bus_clock_100kHz = */ 4, | |
| 293 /* data_setup_time_ns = */ 40, | |
| 294 /* write_pulse_width_ns = */ 80, /* st7528 */ | |
| 295 /* tile_width = */ 20, | |
| 296 /* tile_hight = */ 13, | |
| 297 /* default_x_offset = */ 0, /* x_offset is used as y offset for the ssd1326 */ | |
| 298 /* flipmode_x_offset = */ 0, /* x_offset is used as y offset for the ssd1326 */ | |
| 299 /* pixel_width = */ 160, | |
| 300 /* pixel_height = */ 100 | |
| 301 }; | |
| 302 | |
| 303 uint8_t u8x8_d_st7528_nhd_c160100(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) | |
| 304 { | |
| 305 if ( msg == U8X8_MSG_DISPLAY_SETUP_MEMORY ) | |
| 306 { | |
| 307 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_st7528_160x100_display_info); | |
| 308 return 1; | |
| 309 } | |
| 310 return u8x8_d_st7528_generic(u8x8, msg, arg_int, arg_ptr); | |
| 311 } | |
| 312 | |
| 313 |
