/* * This file is part of the libopencm3 project. * * Copyright (C) 2010 Thomas Otto * * This library is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this library. If not, see . */ #include "./dogm128.h" u8 dogm128_ram[1024]; u8 dogm128_cursor_x; u8 dogm128_cursor_y; void dogm128_send_command(u8 command) { u32 i; gpio_clear(DOGM128_A0_PORT, DOGM128_A0_PIN); /* A0 low for commands */ spi_send(DOGM128_SPI, command); for (i = 0; i <= 500; i++) /* Wait a bit. */ ; } void dogm128_send_data(u8 data) { u32 i; gpio_set(DOGM128_A0_PORT, DOGM128_A0_PIN); /* A0 high for data */ spi_send(DOGM128_SPI, data); for (i = 0; i <= 500; i++) /* Wait a bit. */ ; } void dogm128_init(void) { u32 i; /* Reset the display (reset low for dogm128). */ gpio_clear(DOGM128_RESET_PORT, DOGM128_RESET_PIN); for (i = 0; i <= 60000; i++) /* Wait a bit. */ ; /* Get the display out of reset (reset high for dogm128). */ gpio_set(DOGM128_RESET_PORT, DOGM128_RESET_PIN); for (i = 0; i <= 60000; i++) /* Wait a bit. */ ; gpio_clear(DOGM128_A0_PORT, DOGM128_A0_PIN); /* A0 low for init */ /* Tell the display that we want to start. */ spi_set_nss_low(DOGM128_SPI); /* Init sequence. */ dogm128_send_command(DOGM128_DISPLAY_START_ADDRESS_BASE + 0); dogm128_send_command(DOGM128_ADC_REVERSE); dogm128_send_command(DOGM128_COM_OUTPUT_SCAN_NORMAL); dogm128_send_command(DOGM128_DISPLAY_NORMAL); dogm128_send_command(DOGM128_BIAS_19); dogm128_send_command(DOGM128_POWER_CONTROL_BASE + 0x07); dogm128_send_command(DOGM128_BOOSTER_RATIO_SET); dogm128_send_command(0x00); /* Booster x4 */ dogm128_send_command(DOGM128_V0_OUTPUT_RESISTOR_BASE + 0x07); dogm128_send_command(DOGM128_ELECTRONIC_VOLUME_MODE_SET); dogm128_send_command(0x16); /* Contrast */ dogm128_send_command(DOGM128_STATIC_INDICATOR_OFF); dogm128_send_command(0x00); /* Flashing OFF */ dogm128_send_command(DOGM128_DISPLAY_ON); /* End transfer. */ spi_set_nss_high(DOGM128_SPI); } void dogm128_print_char(u8 data) { u8 i, page, shift, xcoord, ycoord; xcoord = dogm128_cursor_x; ycoord = dogm128_cursor_y; /* The display consists of 8 lines a 8 dots each. */ page = (63 - ycoord) / 8; shift = (7 -((63 - ycoord) % 8)); /* vertical shift */ /* Font is 8x5 so iterate each column of the character. */ for (i = 0; i <= 5; i++) { /* Right border reached? */ if ((xcoord + i) > 127) return; dogm128_cursor_x++; /* 0xAA = end of character - no dots in this line. */ if (dogm128_font[data - 0x20][i] == 0xAA) { dogm128_ram[(page * 128) + xcoord + i] &= ~(0xFF >> shift); /* Clear area. */ if ((shift > 0) && (page > 0)) dogm128_ram[((page - 1) * 128) + xcoord + i] &= ~(0xFF << (8 - shift)); /* Clear area. */ return; } /* Lower part. */ dogm128_ram[(page * 128) + xcoord + i] &= ~(0xFF >> shift); /* Clear area. */ dogm128_ram[(page * 128) + xcoord + i] = (dogm128_font[data - 0x20][i] >> shift); /* Higher part if needed. */ if ((shift > 0) && (page > 0)) { dogm128_ram[((page - 1) * 128) + xcoord + i] &= ~(0xFF << (8 - shift)); /* Clear area. */ dogm128_ram[((page - 1) * 128) + xcoord + i] = (dogm128_font[data - 0x20][i] << (8 - shift)); } } } void dogm128_set_cursor(u8 xcoord, u8 ycoord) { dogm128_cursor_x = xcoord; dogm128_cursor_y = ycoord; } void dogm128_print_string(char *s) { while (*s != 0) { dogm128_print_char(*s); s++; } } void dogm128_set_dot(u8 xcoord, u8 ycoord) { dogm128_ram[(((63 - ycoord) / 8) * 128) + xcoord] |= (1 << ((63 - ycoord) % 8)); } void dogm128_clear_dot(u8 xcoord, u8 ycoord) { dogm128_ram[(((63 - ycoord) / 8) * 128) + xcoord] &= ~(1 << ((63 - ycoord) % 8)); } void dogm128_update_display(void) { u8 page, column; /* Tell the display that we want to start. */ spi_set_nss_low(DOGM128_SPI); for (page = 0; page <= 7; page++) { dogm128_send_command(0xB0 + page); /* Set page. */ dogm128_send_command(0x10); /* Set column upper address to 0. */ dogm128_send_command(0x00); /* Set column lower address to 0. */ for (column = 0; column <= 127; column++) dogm128_send_data(dogm128_ram[(page * 128) + column]); } spi_set_nss_high(DOGM128_SPI); } void dogm128_clear(void) { int i; for (i = 0; i <= 1023; i++) dogm128_ram[i] = 0; dogm128_update_display(); } /* * This is a non-monospace font definition (upside down for better handling). * 0xAA is the end of the character so it's not space efficient in your memory, * but on your display. * * We are starting with " " as the first printable character at 0x20, so we * have to substract 0x20 later. * * Its the only defined to 127/0x7F so if you have German umlauts or other * special characters from above you have to expand this definition a * little bit. */ const u8 dogm128_font[96][6] = { /* 20 SPACE */ {0x00, 0x00, 0x00, 0xAA, 0xAA, 0xAA}, /* 21 ! */ {0x5E, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, /* 22 " */ {0x66, 0x00, 0x66, 0xAA, 0xAA, 0xAA}, /* 23 # */ {0x28, 0x7C, 0x28, 0x7C, 0x28, 0xAA}, /* 24 $ */ {0x24, 0x2A, 0x7F, 0x2A, 0x10, 0xAA}, /* 25 % */ {0x62, 0x18, 0x46, 0xAA, 0xAA, 0xAA}, /* 26 & */ {0x30, 0x4C, 0x5A, 0x24, 0x50, 0xAA}, /* 27 ' */ {0x06, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, /* 28 ( */ {0x3E, 0x41, 0xAA, 0xAA, 0xAA, 0xAA}, /* 29 ) */ {0x41, 0x3E, 0xAA, 0xAA, 0xAA, 0xAA}, /* 2A * */ {0x28, 0x10, 0x7C, 0x10, 0x28, 0xAA}, /* 2B + */ {0x10, 0x38, 0x10, 0xAA, 0xAA, 0xAA}, /* 2C , */ {0xC0, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, /* 2D - */ {0x10, 0x10, 0x10, 0xAA, 0xAA, 0xAA}, /* 2E . */ {0x40, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, /* 2F / */ {0x60, 0x18, 0x06, 0xAA, 0xAA, 0xAA}, /* 30 0 */ {0x3C, 0x42, 0x42, 0x3C, 0xAA, 0xAA}, /* 31 1 */ {0x44, 0x7E, 0x40, 0xAA, 0xAA, 0xAA}, /* 32 2 */ {0x44, 0x62, 0x52, 0x4C, 0xAA, 0xAA}, /* 33 3 */ {0x4A, 0x4A, 0x34, 0xAA, 0xAA, 0xAA}, /* 34 4 */ {0x1E, 0x10, 0x78, 0x10, 0xAA, 0xAA}, /* 35 5 */ {0x4E, 0x4A, 0x32, 0xAA, 0xAA, 0xAA}, /* 36 6 */ {0x3C, 0x4A, 0x4A, 0x30, 0xAA, 0xAA}, /* 37 7 */ {0x62, 0x12, 0x0E, 0xAA, 0xAA, 0xAA}, /* 38 8 */ {0x34, 0x4A, 0x4A, 0x34, 0xAA, 0xAA}, /* 39 9 */ {0x0C, 0x52, 0x52, 0x3C, 0xAA, 0xAA}, /* 3A : */ {0x28, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, /* 3B ; */ {0xC8, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, /* 3C < */ {0x10, 0x28, 0x44, 0xAA, 0xAA, 0xAA}, /* 3D = */ {0x28, 0x28, 0x28, 0xAA, 0xAA, 0xAA}, /* 3E > */ {0x44, 0x28, 0x10, 0xAA, 0xAA, 0xAA}, /* 3F ? */ {0x02, 0x52, 0x0C, 0xAA, 0xAA, 0xAA}, /* 40 @ */ {0x3C, 0x42, 0x12, 0x2A, 0x3C, 0xAA}, /* 41 A */ {0x7C, 0x12, 0x12, 0x7C, 0xAA, 0xAA}, /* 42 B */ {0x7E, 0x4A, 0x4A, 0x34, 0xAA, 0xAA}, /* 43 C */ {0x3C, 0x42, 0x42, 0x24, 0xAA, 0xAA}, /* 44 D */ {0x7E, 0x42, 0x42, 0x3C, 0xAA, 0xAA}, /* 45 E */ {0x7E, 0x4A, 0x4A, 0xAA, 0xAA, 0xAA}, /* 46 F */ {0x7E, 0x0A, 0x0A, 0xAA, 0xAA, 0xAA}, /* 47 G */ {0x3C, 0x42, 0x52, 0x34, 0xAA, 0xAA}, /* 48 H */ {0x7E, 0x08, 0x08, 0x7E, 0xAA, 0xAA}, /* 49 I */ {0x42, 0x7E, 0x42, 0xAA, 0xAA, 0xAA}, /* 4A J */ {0x42, 0x42, 0x3E, 0xAA, 0xAA, 0xAA}, /* 4B K */ {0x7E, 0x08, 0x14, 0x62, 0xAA, 0xAA}, /* 4C L */ {0x7E, 0x40, 0x40, 0xAA, 0xAA, 0xAA}, /* 4D M */ {0x7E, 0x04, 0x08, 0x04, 0x7E, 0xAA}, /* 4E N */ {0x7E, 0x04, 0x18, 0x20, 0x7E, 0xAA}, /* 4F O */ {0x3C, 0x42, 0x42, 0x3C, 0xAA, 0xAA}, /* 50 P */ {0x7E, 0x12, 0x12, 0x0C, 0xAA, 0xAA}, /* 51 Q */ {0x3C, 0x42, 0x42, 0xBC, 0xAA, 0xAA}, /* 52 R */ {0x7E, 0x12, 0x12, 0x6C, 0xAA, 0xAA}, /* 53 S */ {0x44, 0x4A, 0x4A, 0x30, 0xAA, 0xAA}, /* 54 T */ {0x02, 0x7E, 0x02, 0xAA, 0xAA, 0xAA}, /* 55 U */ {0x3E, 0x40, 0x40, 0x3E, 0xAA, 0xAA}, /* 56 V */ {0x06, 0x18, 0x60, 0x18, 0x06, 0xAA}, /* 57 W */ {0x3E, 0x40, 0x3E, 0x40, 0x3E, 0xAA}, /* 58 X */ {0x42, 0x24, 0x18, 0x24, 0x42, 0xAA}, /* 59 Y */ {0x9E, 0xA0, 0xA0, 0x7E, 0xAA, 0xAA}, /* 5A Z */ {0x62, 0x52, 0x4A, 0x46, 0xAA, 0xAA}, /* 5B [ */ {0x7E, 0x42, 0xAA, 0xAA, 0xAA, 0xAA}, /* 5C \ */ {0x06, 0x18, 0x60, 0xAA, 0xAA, 0xAA}, /* 5D ] */ {0x42, 0x7E, 0xAA, 0xAA, 0xAA, 0xAA}, /* 5E ^ */ {0x04, 0x02, 0x04, 0xAA, 0xAA, 0xAA}, /* 5F _ */ {0x40, 0x40, 0x40, 0xAA, 0xAA, 0xAA}, /* 60 ` */ {0x02, 0x04, 0xAA, 0xAA, 0xAA, 0xAA}, /* 61 a */ {0x20, 0x54, 0x54, 0x78, 0xAA, 0xAA}, /* 62 b */ {0x7E, 0x44, 0x44, 0x38, 0xAA, 0xAA}, /* 63 c */ {0x38, 0x44, 0x44, 0x28, 0xAA, 0xAA}, /* 64 d */ {0x38, 0x44, 0x44, 0x7E, 0xAA, 0xAA}, /* 65 e */ {0x38, 0x54, 0x54, 0x58, 0xAA, 0xAA}, /* 66 f */ {0x7C, 0x0A, 0xAA, 0xAA, 0xAA, 0xAA}, /* 67 g */ {0x98, 0xA4, 0xA4, 0x7C, 0xAA, 0xAA}, /* 68 h */ {0x7E, 0x04, 0x04, 0x78, 0xAA, 0xAA}, /* 69 i */ {0x7A, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, /* 6A j */ {0x40, 0x3A, 0xAA, 0xAA, 0xAA, 0xAA}, /* 6B k */ {0x7E, 0x10, 0x28, 0x44, 0xAA, 0xAA}, /* 6C l */ {0x7E, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, /* 6D m */ {0x7C, 0x04, 0x78, 0x04, 0x78, 0xAA}, /* 6E n */ {0x7C, 0x04, 0x04, 0x78, 0xAA, 0xAA}, /* 6F o */ {0x38, 0x44, 0x44, 0x38, 0xAA, 0xAA}, /* 70 p */ {0xFC, 0x24, 0x24, 0x18, 0xAA, 0xAA}, /* 71 q */ {0x18, 0x24, 0x24, 0xFC, 0xAA, 0xAA}, /* 72 r */ {0x78, 0x04, 0xAA, 0xAA, 0xAA, 0xAA}, /* 73 s */ {0x48, 0x54, 0x54, 0x20, 0xAA, 0xAA}, /* 74 t */ {0x04, 0x3E, 0x44, 0xAA, 0xAA, 0xAA}, /* 75 u */ {0x3C, 0x40, 0x40, 0x3C, 0xAA, 0xAA}, /* 76 v */ {0x0C, 0x30, 0x40, 0x30, 0x0C, 0xAA}, /* 77 w */ {0x3C, 0x40, 0x3C, 0x40, 0x3C, 0xAA}, /* 78 x */ {0x44, 0x28, 0x10, 0x28, 0x44, 0xAA}, /* 79 y */ {0x1C, 0xA0, 0xA0, 0x7C, 0xAA, 0xAA}, /* 7A z */ {0x64, 0x54, 0x4C, 0xAA, 0xAA, 0xAA}, /* 7B { */ {0x08, 0x36, 0x41, 0xAA, 0xAA, 0xAA}, /* 7C | */ {0x7E, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, /* 7D } */ {0x41, 0x36, 0x08, 0xAA, 0xAA, 0xAA}, /* 7E ~ */ {0x20, 0x10, 0x20, 0x10, 0xAA, 0xAA}, /* 7F DEL */ {0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA}, };