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comparison: components/u8g2/csrc/u8x8_d_max7219.c

components/u8g2/csrc/u8x8_d_max7219.c

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1 /*
2
3 u8x8_d_max7219.c
4
5 Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
6
7 Copyright (c) 2017, 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 static const uint8_t u8x8_d_max7219_init_seq[] = {
42
43 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
44 U8X8_CA(15, 0), /* test mode off */
45 U8X8_CA(15, 0), /* test mode off */
46 U8X8_CA(15, 0), /* test mode off */
47 U8X8_CA(15, 0), /* test mode off */
48 U8X8_END_TRANSFER(), /* disable chip */
49
50 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
51 U8X8_CA(12, 0), /* */
52 U8X8_CA(12, 0), /* */
53 U8X8_CA(12, 0), /* */
54 U8X8_CA(12, 0), /* */
55 U8X8_END_TRANSFER(), /* disable chip */
56
57 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
58 U8X8_CA(9, 0), /* decode mode: graphics */
59 U8X8_CA(9, 0), /* decode mode: graphics */
60 U8X8_CA(9, 0), /* decode mode: graphics */
61 U8X8_CA(9, 0), /* decode mode: graphics */
62 U8X8_END_TRANSFER(), /* disable chip */
63
64 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
65 U8X8_CA(10, 10), /* medium high intensity */
66 U8X8_CA(10, 10), /* medium high intensity */
67 U8X8_CA(10, 10), /* medium high intensity */
68 U8X8_CA(10, 10), /* medium high intensity */
69 U8X8_END_TRANSFER(), /* disable chip */
70
71 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
72 U8X8_CA(11, 7), /* scan limit: display all digits (assuming a 8x8 matrix) */
73 U8X8_CA(11, 7), /* scan limit: display all digits (assuming a 8x8 matrix) */
74 U8X8_CA(11, 7), /* scan limit: display all digits (assuming a 8x8 matrix) */
75 U8X8_CA(11, 7), /* scan limit: display all digits (assuming a 8x8 matrix) */
76 U8X8_END_TRANSFER(), /* disable chip */
77
78
79 //U8X8_CA(12, 0), /* shutdown */
80
81 //U8X8_END_TRANSFER(), /* disable chip */
82 U8X8_END() /* end of sequence */
83 };
84
85 static const uint8_t u8x8_d_max7219_powersave0_seq[] = {
86 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
87 U8X8_CA(12, 1), /* display on */
88 U8X8_CA(12, 1), /* display on */
89 U8X8_CA(12, 1), /* display on */
90 U8X8_CA(12, 1), /* display on */
91 U8X8_END_TRANSFER(), /* disable chip */
92 U8X8_END() /* end of sequence */
93 };
94
95 static const uint8_t u8x8_d_max7219_powersave1_seq[] = {
96 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
97 U8X8_CA(12, 0), /* shutdown */
98 U8X8_CA(12, 0), /* shutdown */
99 U8X8_CA(12, 0), /* shutdown */
100 U8X8_CA(12, 0), /* shutdown */
101 U8X8_END_TRANSFER(), /* disable chip */
102 U8X8_END() /* end of sequence */
103 };
104
105
106 static uint8_t u8x8_d_max7219_generic(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
107 {
108 uint8_t c, j, i;
109 uint8_t *ptr;
110 switch(msg)
111 {
112 /* handled by the calling function
113 case U8X8_MSG_DISPLAY_SETUP_MEMORY:
114 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_pcf8812_96x65_display_info);
115 break;
116 case U8X8_MSG_DISPLAY_INIT:
117 u8x8_d_helper_display_init(u8x8);
118 u8x8_cad_SendSequence(u8x8, u8x8_d_max7219_init_seq);
119 break;
120 case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
121 if ( arg_int == 0 )
122 u8x8_cad_SendSequence(u8x8, u8x8_d_max7219_powersave0_seq);
123 else
124 u8x8_cad_SendSequence(u8x8, u8x8_d_max7219_powersave1_seq);
125 break;
126 */
127 /* not supported by MAX7219
128 case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
129 break;
130 */
131 #ifdef U8X8_WITH_SET_CONTRAST
132 case U8X8_MSG_DISPLAY_SET_CONTRAST:
133 u8x8_cad_StartTransfer(u8x8);
134 for( i = 0; i < u8x8->display_info->tile_width; i++ )
135 {
136 u8x8_cad_SendCmd(u8x8, 10 ); /* brightness */
137 u8x8_cad_SendArg(u8x8, (arg_int>>4) ); /* 0..15 for contrast */
138 }
139 u8x8_cad_EndTransfer(u8x8);
140 break;
141 #endif
142 case U8X8_MSG_DISPLAY_DRAW_TILE:
143 /* transfer always has to start at x pos 0 (u8x8 is not supported) */
144 /* also y pos has to be 0 */
145 /* arg_int is ignored */
146 //x = ((u8x8_tile_t *)arg_ptr)->x_pos;
147
148 c = ((u8x8_tile_t *)arg_ptr)->cnt; /* number of tiles */
149 ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr; /* data ptr to the tiles */
150 for( i = 0; i < 8; i++ )
151 {
152 u8x8_cad_StartTransfer(u8x8);
153 for( j = 0; j < c; j++ )
154 {
155 u8x8_cad_SendCmd(u8x8, i+1);
156 u8x8_cad_SendArg(u8x8, *ptr );
157 ptr++;
158 }
159 u8x8_cad_EndTransfer(u8x8);
160 }
161
162 break;
163 default:
164 return 0;
165 }
166 return 1;
167 }
168
169 /*==============================*/
170
171 static const u8x8_display_info_t u8x8_max7219_32x8_display_info =
172 {
173 /* chip_enable_level = */ 0,
174 /* chip_disable_level = */ 1,
175
176 /* post_chip_enable_wait_ns = */ 100,
177 /* pre_chip_disable_wait_ns = */ 100,
178 /* reset_pulse_width_ms = */ 100,
179 /* post_reset_wait_ms = */ 100,
180 /* sda_setup_time_ns = */ 100,
181 /* sck_pulse_width_ns = */ 100,
182 /* sck_clock_hz = */ 4000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */
183 /* spi_mode = */ 0, /* active high, rising edge */
184 /* i2c_bus_clock_100kHz = */ 4,
185 /* data_setup_time_ns = */ 40,
186 /* write_pulse_width_ns = */ 150,
187 /* tile_width = */ 4,
188 /* tile_hight = */ 1,
189 /* default_x_offset = */ 0,
190 /* flipmode_x_offset = */ 0,
191 /* pixel_width = */ 32,
192 /* pixel_height = */ 8
193 };
194
195 uint8_t u8x8_d_max7219_32x8(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
196 {
197 switch(msg)
198 {
199 case U8X8_MSG_DISPLAY_SETUP_MEMORY :
200 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_max7219_32x8_display_info);
201 return 1;
202 case U8X8_MSG_DISPLAY_INIT:
203 u8x8_d_helper_display_init(u8x8);
204 u8x8_cad_SendSequence(u8x8, u8x8_d_max7219_init_seq);
205 return 1;
206 case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
207 if ( arg_int == 0 )
208 u8x8_cad_SendSequence(u8x8, u8x8_d_max7219_powersave0_seq);
209 else
210 u8x8_cad_SendSequence(u8x8, u8x8_d_max7219_powersave1_seq);
211 return 1;
212 }
213 return u8x8_d_max7219_generic(u8x8, msg, arg_int, arg_ptr);
214 }
215
216 /*==============================*/
217
218 static const u8x8_display_info_t u8x8_max7219_8x8_display_info =
219 {
220 /* chip_enable_level = */ 0,
221 /* chip_disable_level = */ 1,
222
223 /* post_chip_enable_wait_ns = */ 100,
224 /* pre_chip_disable_wait_ns = */ 100,
225 /* reset_pulse_width_ms = */ 100,
226 /* post_reset_wait_ms = */ 100,
227 /* sda_setup_time_ns = */ 100,
228 /* sck_pulse_width_ns = */ 100,
229 /* sck_clock_hz = */ 4000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */
230 /* spi_mode = */ 0, /* active high, rising edge */
231 /* i2c_bus_clock_100kHz = */ 4,
232 /* data_setup_time_ns = */ 40,
233 /* write_pulse_width_ns = */ 150,
234 /* tile_width = */ 1,
235 /* tile_hight = */ 1,
236 /* default_x_offset = */ 0,
237 /* flipmode_x_offset = */ 0,
238 /* pixel_width = */ 8,
239 /* pixel_height = */ 8
240 };
241
242 uint8_t u8x8_d_max7219_8x8(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
243 {
244 switch(msg)
245 {
246 case U8X8_MSG_DISPLAY_SETUP_MEMORY :
247 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_max7219_8x8_display_info);
248 return 1;
249 case U8X8_MSG_DISPLAY_INIT:
250 u8x8_d_helper_display_init(u8x8);
251 u8x8_cad_SendSequence(u8x8, u8x8_d_max7219_init_seq);
252 return 1;
253 case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
254 if ( arg_int == 0 )
255 u8x8_cad_SendSequence(u8x8, u8x8_d_max7219_powersave0_seq);
256 else
257 u8x8_cad_SendSequence(u8x8, u8x8_d_max7219_powersave1_seq);
258 return 1;
259 }
260 return u8x8_d_max7219_generic(u8x8, msg, arg_int, arg_ptr);
261 }
262
263
264 /*==============================*/
265
266 static const uint8_t u8x8_d_max7219_8_init_seq[] = {
267
268 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
269 U8X8_CA(15, 0), /* test mode off */
270 U8X8_CA(15, 0), /* test mode off */
271 U8X8_CA(15, 0), /* test mode off */
272 U8X8_CA(15, 0), /* test mode off */
273 U8X8_CA(15, 0), /* test mode off */
274 U8X8_CA(15, 0), /* test mode off */
275 U8X8_CA(15, 0), /* test mode off */
276 U8X8_CA(15, 0), /* test mode off */
277 U8X8_END_TRANSFER(), /* disable chip */
278
279 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
280 U8X8_CA(12, 0), /* */
281 U8X8_CA(12, 0), /* */
282 U8X8_CA(12, 0), /* */
283 U8X8_CA(12, 0), /* */
284 U8X8_CA(12, 0), /* */
285 U8X8_CA(12, 0), /* */
286 U8X8_CA(12, 0), /* */
287 U8X8_CA(12, 0), /* */
288 U8X8_END_TRANSFER(), /* disable chip */
289
290 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
291 U8X8_CA(9, 0), /* decode mode: graphics */
292 U8X8_CA(9, 0), /* decode mode: graphics */
293 U8X8_CA(9, 0), /* decode mode: graphics */
294 U8X8_CA(9, 0), /* decode mode: graphics */
295 U8X8_CA(9, 0), /* decode mode: graphics */
296 U8X8_CA(9, 0), /* decode mode: graphics */
297 U8X8_CA(9, 0), /* decode mode: graphics */
298 U8X8_CA(9, 0), /* decode mode: graphics */
299 U8X8_END_TRANSFER(), /* disable chip */
300
301 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
302 U8X8_CA(10, 10), /* medium high intensity */
303 U8X8_CA(10, 10), /* medium high intensity */
304 U8X8_CA(10, 10), /* medium high intensity */
305 U8X8_CA(10, 10), /* medium high intensity */
306 U8X8_CA(10, 10), /* medium high intensity */
307 U8X8_CA(10, 10), /* medium high intensity */
308 U8X8_CA(10, 10), /* medium high intensity */
309 U8X8_CA(10, 10), /* medium high intensity */
310 U8X8_END_TRANSFER(), /* disable chip */
311
312 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
313 U8X8_CA(11, 7), /* scan limit: display all digits (assuming a 8x8 matrix) */
314 U8X8_CA(11, 7), /* scan limit: display all digits (assuming a 8x8 matrix) */
315 U8X8_CA(11, 7), /* scan limit: display all digits (assuming a 8x8 matrix) */
316 U8X8_CA(11, 7), /* scan limit: display all digits (assuming a 8x8 matrix) */
317 U8X8_CA(11, 7), /* scan limit: display all digits (assuming a 8x8 matrix) */
318 U8X8_CA(11, 7), /* scan limit: display all digits (assuming a 8x8 matrix) */
319 U8X8_CA(11, 7), /* scan limit: display all digits (assuming a 8x8 matrix) */
320 U8X8_CA(11, 7), /* scan limit: display all digits (assuming a 8x8 matrix) */
321 U8X8_END_TRANSFER(), /* disable chip */
322
323
324 //U8X8_CA(12, 0), /* shutdown */
325
326 //U8X8_END_TRANSFER(), /* disable chip */
327 U8X8_END() /* end of sequence */
328 };
329
330 static const uint8_t u8x8_d_max7219_8_powersave0_seq[] = {
331 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
332 U8X8_CA(12, 1), /* display on */
333 U8X8_CA(12, 1), /* display on */
334 U8X8_CA(12, 1), /* display on */
335 U8X8_CA(12, 1), /* display on */
336 U8X8_CA(12, 1), /* display on */
337 U8X8_CA(12, 1), /* display on */
338 U8X8_CA(12, 1), /* display on */
339 U8X8_CA(12, 1), /* display on */
340 U8X8_END_TRANSFER(), /* disable chip */
341 U8X8_END() /* end of sequence */
342 };
343
344 static const uint8_t u8x8_d_max7219_8_powersave1_seq[] = {
345 U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
346 U8X8_CA(12, 0), /* shutdown */
347 U8X8_CA(12, 0), /* shutdown */
348 U8X8_CA(12, 0), /* shutdown */
349 U8X8_CA(12, 0), /* shutdown */
350 U8X8_CA(12, 0), /* shutdown */
351 U8X8_CA(12, 0), /* shutdown */
352 U8X8_CA(12, 0), /* shutdown */
353 U8X8_CA(12, 0), /* shutdown */
354 U8X8_END_TRANSFER(), /* disable chip */
355 U8X8_END() /* end of sequence */
356 };
357
358
359 static const u8x8_display_info_t u8x8_max7219_64x8_display_info =
360 {
361 /* chip_enable_level = */ 0,
362 /* chip_disable_level = */ 1,
363
364 /* post_chip_enable_wait_ns = */ 100,
365 /* pre_chip_disable_wait_ns = */ 100,
366 /* reset_pulse_width_ms = */ 100,
367 /* post_reset_wait_ms = */ 100,
368 /* sda_setup_time_ns = */ 100,
369 /* sck_pulse_width_ns = */ 100,
370 /* sck_clock_hz = */ 4000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */
371 /* spi_mode = */ 0, /* active high, rising edge */
372 /* i2c_bus_clock_100kHz = */ 4,
373 /* data_setup_time_ns = */ 40,
374 /* write_pulse_width_ns = */ 150,
375 /* tile_width = */ 8,
376 /* tile_hight = */ 1,
377 /* default_x_offset = */ 0,
378 /* flipmode_x_offset = */ 0,
379 /* pixel_width = */ 64,
380 /* pixel_height = */ 8
381 };
382
383 uint8_t u8x8_d_max7219_64x8(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
384 {
385 switch(msg)
386 {
387 case U8X8_MSG_DISPLAY_SETUP_MEMORY :
388 u8x8_d_helper_display_setup_memory(u8x8, &u8x8_max7219_64x8_display_info);
389 return 1;
390 case U8X8_MSG_DISPLAY_INIT:
391 u8x8_d_helper_display_init(u8x8);
392 u8x8_cad_SendSequence(u8x8, u8x8_d_max7219_8_init_seq);
393 return 1;
394 case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
395 if ( arg_int == 0 )
396 u8x8_cad_SendSequence(u8x8, u8x8_d_max7219_8_powersave0_seq);
397 else
398 u8x8_cad_SendSequence(u8x8, u8x8_d_max7219_8_powersave1_seq);
399 return 1;
400 }
401 return u8x8_d_max7219_generic(u8x8, msg, arg_int, arg_ptr);
402 }
403
404

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