Mercurial > co2meter / file comparison

comparison: components/u8g2/csrc/u8x8_d_st7586s_erc240160.c

components/u8g2/csrc/u8x8_d_st7586s_erc240160.c

changeset 0
88d965579617
equal deleted inserted replaced
-1:000000000000 0:88d965579617
1 /*
2 u8x8_d_st7586s_erc240160.c
3
4 Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
5
6 Copyright (c) 2018, olikraus@gmail.com
7
8 All rights reserved.
9 Redistribution and use in source and binary forms, with or without modification,
10 are permitted provided that the following conditions are met:
11 * Redistributions of source code must retain the above copyright notice, this list
12 of conditions and the following disclaimer.
13
14 * Redistributions in binary form must reproduce the above copyright notice, this
15 list of conditions and the following disclaimer in the documentation and/or other
16 materials provided with the distribution.
17 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
18 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
19 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
20 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
22 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
27 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31 */
32
33 #include "u8g2.h"
34
35
36 static const uint8_t u8x8_d_st7586s_sleep_on[] = {
37 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
38 U8X8_C(0x010), /* set power save mode */
39 U8X8_END_TRANSFER(), /* disable chip */
40 U8X8_END() /* end of sequence */
41 };
42
43 static const uint8_t u8x8_d_st7586s_sleep_off[] = {
44 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
45 U8X8_C(0x011), //Sleep out
46 U8X8_DLY(50), /* delay 50 ms */
47 U8X8_END_TRANSFER(), /* disable chip */
48 U8X8_END() /* end of sequence */
49 };
50
51 static const uint8_t u8x8_d_st7586s_erc240160_flip0_seq[] = {
52 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
53 U8X8_C(0x036), /* Scan Direction Setting */
54 U8X8_A(0x0C8), /* COM159 -> COM0 SEG383 -> SEG0 */
55 U8X8_C(0x037), /* Start line 0 */
56 U8X8_A(0x000),
57 U8X8_C(0x02A), /* Column Address Setting */
58 U8X8_A(0x000), /* COL8 -> COL127 */
59 U8X8_A(0x008),
60 U8X8_A(0x000),
61 U8X8_A(0x07F), /* 120*3=240 pixels + 120 unused */
62 U8X8_END_TRANSFER(), /* disable chip */
63 U8X8_END() /* end of sequence */
64 };
65
66 static const uint8_t u8x8_d_st7586s_erc240160_flip1_seq[] = {
67 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
68 U8X8_C(0x036), /* Scan Direction Setting */
69 U8X8_A(0x000), /* COM0 -> COM159 SEG0 -> SEG383 */
70 U8X8_C(0x037), /* Start line 0 */
71 U8X8_A(0x000),
72 U8X8_C(0x02A), /* Column Address Setting */
73 U8X8_A(0x000), /* COL0 -> COL119 */
74 U8X8_A(0x000),
75 U8X8_A(0x000),
76 U8X8_A(0x077), /* 120*3=240 pixels + 120 unused */
77 U8X8_END_TRANSFER(), /* disable chip */
78 U8X8_END() /* end of sequence */
79 };
80
81 static const uint8_t u8x8_d_st7586s_erc240160_init_seq[] = {
82 U8X8_END_TRANSFER(),/* disable chip */
83 // U8G_ESC_RST(1), /* hardware reset */
84 U8X8_DLY(60), /* Delay 60 ms */
85 U8X8_START_TRANSFER(),/* enable chip */
86
87 U8X8_C(0x001), // Soft reset
88 U8X8_DLY(60), // Delay 120 ms
89
90 U8X8_C(0x011), // Sleep Out
91 U8X8_C(0x028), // Display OFF
92 U8X8_DLY(25), // Delay 50 ms
93
94 U8X8_CAA(0x0C0,0x036,0x01),// Vop = 136h data sheet suggested 0x0145 but this caused streaks
95
96 U8X8_CA(0x0C3,0x000), // BIAS = 1/14
97
98 U8X8_CA(0x0C4,0x007), // Booster = x8
99
100 U8X8_CA(0x0D0,0x01D), // Enable Analog Circuit
101
102 U8X8_CA(0x0B3,0x000), // Set FOSC divider
103
104 U8X8_CA(0x0B5,0x000), // N-Line = 0
105
106 U8X8_C(0x039), // 0x39 Monochrome mode. 0x38 - gray Mode
107
108 U8X8_C(0x03A), // Enable DDRAM Interface
109 U8X8_A(0x002), // monochrome and 4-level
110
111 U8X8_C(0x036), // Scan Direction Setting
112 U8X8_A(0x0C8), // COM:C159->C0 SEG: SEG383->SEG0
113
114 U8X8_C(0x0B1), // First output COM
115 U8X8_A(0x000), //
116
117 U8X8_C(0x0B0), // Duty Setting (num rows - 1)
118 U8X8_A(0x09F),
119
120 U8X8_C(0x020), // Display inversion off
121
122 U8X8_C(0x02A), // Column Address Setting
123 U8X8_A(0x000), // COL0 -> COL127
124 U8X8_A(0x008), //
125 U8X8_A(0x000), //
126 U8X8_A(0x07F), // 80*3=240 pixels
127
128 U8X8_C(0x02B), // Row Address Setting
129 U8X8_A(0x000), // ROW0 -> ROW159
130 U8X8_A(0x000), //
131 U8X8_A(0x000), //
132 U8X8_A(0x09F), // 160 pixels
133
134 U8X8_C(0x029), // Display ON
135 U8X8_END() /* end of sequence */
136 };
137
138 static const u8x8_display_info_t u8x8_st7586s_erc240160_display_info =
139 {
140 /* chip_enable_level = */ 0,
141 /* chip_disable_level = */ 1,
142
143 /* post_chip_enable_wait_ns = */ 5,
144 /* pre_chip_disable_wait_ns = */ 5,
145 /* reset_pulse_width_ms = */ 1,
146 /* post_reset_wait_ms = */ 6,
147 /* sda_setup_time_ns = */ 20,
148 /* sck_pulse_width_ns = */ 100, /* datasheet ST7586S */
149 /* sck_clock_hz = */ 8000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */
150 /* ST7586+Atmega128RFA1 works with 8MHz */
151 /* spi_mode = */ 3, /* active high, rising edge */
152 /* i2c_bus_clock_100kHz = */ 4,
153 /* data_setup_time_ns = */ 20, /* datasheet suggests min 20 */
154 /* write_pulse_width_ns = */ 40,
155 /* tile_width = */ 30,
156 /* tile_height = */ 20,
157 /* default_x_offset = */ 0, /* abused as flag to know if we are flipped */
158 /* flipmode_x_offset = */ 1, /* as pixel order different for normal/flipped */
159 /* pixel_width = */ 240,
160 /* pixel_height = */ 160
161 };
162
163 /*******************************************************************************
164 * st7586s_erc240160 driver. ST7586 based display from buydisplay.com
165 ******************************************************************************/
166 uint8_t u8x8_d_st7586s_erc240160(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) {
167
168 uint8_t c;
169 uint8_t *ptr;
170 uint8_t i, byte;
171 uint32_t input;
172 uint8_t output[4];
173 switch (msg) {
174 case U8X8_MSG_DISPLAY_DRAW_TILE:
175 u8x8_cad_StartTransfer(u8x8); // OK Start transfer
176 u8x8_cad_SendCmd(u8x8, 0x02B); /* Row Address Setting */
177 u8x8_cad_SendArg(u8x8, 0x000);
178 u8x8_cad_SendArg(u8x8, 0x008 * ((u8x8_tile_t *)arg_ptr)->y_pos);
179 u8x8_cad_SendArg(u8x8, 0x000);
180 u8x8_cad_SendArg(u8x8, 0x09F); // should set end row based on display dimensions
181 u8x8_cad_SendCmd(u8x8, 0x02C); /* cmd write display data to ram */
182 c = ((u8x8_tile_t *) arg_ptr)->cnt; //
183 c *= 8;
184 ptr = ((u8x8_tile_t *) arg_ptr)->tile_ptr; //
185
186 // The ST7586S has an unusual 3 pixels per byte format the ERC240160 is even more annoying
187 // as it has every 3rd COM line disconnected for extra oddness so here we read in a byte
188 // (8 pixels) and pack that into 4 bytes of 2 pixels + 1 unused each. This has to be done
189 // in a different order for flipped, normal UUx11x22 flipped 11x22xUU
190 while (c > 0) {
191 input = ((uint8_t)ptr[0]);
192
193 for (i=0; i<4; i++)
194 {
195 byte = 0;
196 if (u8x8->x_offset ==0){
197 if (input & 0x80) // if bit 7
198 byte = byte | 0x18; //set pixel 1
199 if (input & 0x40) // if bit 6
200 byte = byte | 0x3; //set pixel 2
201 }
202 if (u8x8->x_offset ==1){
203 if (input & 0x80) // if bit 7
204 byte = byte | 0xC0; //set pixel 1
205 if (input & 0x40) // if bit 6
206 byte = byte | 0x18; //set pixel 2
207 }
208 output[i] = byte;
209 input <<= 2;
210 }
211
212 u8x8_cad_SendData(u8x8, 4, output);
213 ptr += 1;
214 c -= 1;
215 }
216 u8x8_cad_EndTransfer(u8x8);
217 break;
218 case U8X8_MSG_DISPLAY_INIT:
219 u8x8_d_helper_display_init(u8x8);
220 u8x8_cad_SendSequence(u8x8, u8x8_d_st7586s_erc240160_init_seq);
221 break;
222 case U8X8_MSG_DISPLAY_SETUP_MEMORY:
223 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_st7586s_erc240160_display_info);
224 break;
225 case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
226 if ( arg_int == 0 )
227 {
228 u8x8_cad_SendSequence(u8x8, u8x8_d_st7586s_erc240160_flip0_seq);
229 u8x8->x_offset = u8x8->display_info->default_x_offset;
230 }
231 else
232 {
233 u8x8_cad_SendSequence(u8x8, u8x8_d_st7586s_erc240160_flip1_seq);
234 u8x8->x_offset = u8x8->display_info->flipmode_x_offset;
235 }
236 break;
237 case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
238 if (arg_int == 0)
239 u8x8_cad_SendSequence(u8x8, u8x8_d_st7586s_sleep_off);
240 else
241 u8x8_cad_SendSequence(u8x8, u8x8_d_st7586s_sleep_on);
242 break;
243 #ifdef U8X8_WITH_SET_CONTRAST
244 case U8X8_MSG_DISPLAY_SET_CONTRAST:
245 u8x8_cad_StartTransfer(u8x8);
246 u8x8_cad_SendCmd(u8x8, 0x0C0);
247 u8x8_cad_SendArg(u8x8, arg_int);
248 u8x8_cad_SendArg(u8x8, 1);
249 u8x8_cad_EndTransfer(u8x8);
250 break;
251 #endif
252 default:
253 return 0;
254 }
255 return 1;
256 }

Mercurial Repository: co2meter

mercurial