-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathu8x8_d_st7567.c
executable file
·356 lines (299 loc) · 11.8 KB
/
u8x8_d_st7567.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
/*
u8x8_d_st7567.c
Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
Copyright (c) 2016, olikraus@gmail.com
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list
of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or other
materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "u8x8.h"
static const uint8_t u8x8_d_st7567_132x64_powersave0_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_C(0x0a4), /* all pixel off, issue 142 */
U8X8_C(0x0af), /* display on */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
static const uint8_t u8x8_d_st7567_132x64_powersave1_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_C(0x0ae), /* display off */
U8X8_C(0x0a5), /* enter powersafe: all pixel on, issue 142 */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
static const uint8_t u8x8_d_st7567_132x64_flip0_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_C(0x0a1), /* segment remap a0/a1*/
U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
static const uint8_t u8x8_d_st7567_132x64_flip1_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_C(0x0a0), /* segment remap a0/a1*/
U8X8_C(0x0c8), /* c0: scan dir normal, c8: reverse */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
/*=====================================================*/
static const u8x8_display_info_t u8x8_st7567_132x64_display_info =
{
/* chip_enable_level = */ 0,
/* chip_disable_level = */ 1,
/* post_chip_enable_wait_ns = */ 150, /* */
/* pre_chip_disable_wait_ns = */ 50, /* */
/* reset_pulse_width_ms = */ 1,
/* post_reset_wait_ms = */ 1,
/* sda_setup_time_ns = */ 50, /* */
/* sck_pulse_width_ns = */ 120, /* */
/* sck_clock_hz = */ 4000000UL, /* */
/* spi_mode = */ 0, /* active high, rising edge */
/* i2c_bus_clock_100kHz = */ 4,
/* data_setup_time_ns = */ 40, /* */
/* write_pulse_width_ns = */ 80, /* */
/* tile_width = */ 17, /* width of 17*8=136 pixel */
/* tile_hight = */ 8,
/* default_x_offset = */ 0,
/* flipmode_x_offset = */ 0,
/* pixel_width = */ 132,
/* pixel_height = */ 64
};
static const uint8_t u8x8_d_st7567_132x64_init_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_C(0x0e2), /* soft reset */
U8X8_C(0x0ae), /* display off */
U8X8_C(0x040), /* set display start line to 0 */
U8X8_C(0x0a1), /* ADC set to reverse */
U8X8_C(0x0c0), /* common output mode */
// Flipmode
//U8X8_C(0x0a0), /* ADC set to reverse */
//U8X8_C(0x0c8), /* common output mode */
U8X8_C(0x0a6), /* display normal, bit val 0: LCD pixel off. */
U8X8_C(0x0a3), /* LCD bias 1/7 */
/* power on sequence from paxinstruments */
U8X8_C(0x028|4), /* all power control circuits on */
U8X8_DLY(50),
U8X8_C(0x028|6), /* all power control circuits on */
U8X8_DLY(50),
U8X8_C(0x028|7), /* all power control circuits on */
U8X8_DLY(50),
U8X8_C(0x026), /* v0 voltage resistor ratio */
U8X8_CA(0x081, 0x027), /* set contrast, contrast value*/
U8X8_C(0x0ae), /* display off */
U8X8_C(0x0a5), /* enter powersafe: all pixel on, issue 142 */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
/* pax instruments 132x64 display */
uint8_t u8x8_d_st7567_pi_132x64(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
uint8_t x, c;
uint8_t *ptr;
switch(msg)
{
case U8X8_MSG_DISPLAY_SETUP_MEMORY:
u8x8_d_helper_display_setup_memory(u8x8, &u8x8_st7567_132x64_display_info);
break;
case U8X8_MSG_DISPLAY_INIT:
u8x8_d_helper_display_init(u8x8);
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_init_seq);
break;
case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
if ( arg_int == 0 )
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_powersave0_seq);
else
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_powersave1_seq);
break;
case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
if ( arg_int == 0 )
{
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_flip0_seq);
u8x8->x_offset = u8x8->display_info->default_x_offset;
}
else
{
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_flip1_seq);
u8x8->x_offset = u8x8->display_info->flipmode_x_offset;
}
break;
#ifdef U8X8_WITH_SET_CONTRAST
case U8X8_MSG_DISPLAY_SET_CONTRAST:
u8x8_cad_StartTransfer(u8x8);
u8x8_cad_SendCmd(u8x8, 0x081 );
u8x8_cad_SendArg(u8x8, arg_int >> 2 ); /* st7567 has range from 0 to 63 */
u8x8_cad_EndTransfer(u8x8);
break;
#endif
case U8X8_MSG_DISPLAY_DRAW_TILE:
u8x8_cad_StartTransfer(u8x8);
x = ((u8x8_tile_t *)arg_ptr)->x_pos;
x *= 8;
x += u8x8->x_offset;
u8x8_cad_SendCmd(u8x8, 0x010 | (x>>4) );
u8x8_cad_SendCmd(u8x8, 0x000 | ((x&15)));
u8x8_cad_SendCmd(u8x8, 0x0b0 | (((u8x8_tile_t *)arg_ptr)->y_pos));
c = ((u8x8_tile_t *)arg_ptr)->cnt;
c *= 8;
ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr;
/*
The following if condition checks the hardware limits of the st7567
controller: It is not allowed to write beyond the display limits.
This is in fact an issue within flip mode.
*/
if ( c + x > 132u )
{
c = 132u;
c -= x;
}
do
{
u8x8_cad_SendData(u8x8, c, ptr); /* note: SendData can not handle more than 255 bytes */
arg_int--;
} while( arg_int > 0 );
u8x8_cad_EndTransfer(u8x8);
break;
default:
return 0;
}
return 1;
}
/*=====================================================*/
static const u8x8_display_info_t u8x8_st7567_jlx12864_display_info =
{
/* chip_enable_level = */ 0,
/* chip_disable_level = */ 1,
/* post_chip_enable_wait_ns = */ 150, /* */
/* pre_chip_disable_wait_ns = */ 50, /* */
/* reset_pulse_width_ms = */ 1,
/* post_reset_wait_ms = */ 1,
/* sda_setup_time_ns = */ 50, /* */
/* sck_pulse_width_ns = */ 120, /* */
/* sck_clock_hz = */ 4000000UL, /* */
/* spi_mode = */ 0, /* active high, rising edge */
/* i2c_bus_clock_100kHz = */ 4,
/* data_setup_time_ns = */ 40, /* */
/* write_pulse_width_ns = */ 80, /* */
/* tile_width = */ 16, /* width of 16*8=128 pixel */
/* tile_hight = */ 8,
/* default_x_offset = */ 4,
/* flipmode_x_offset = */ 0,
/* pixel_width = */ 128,
/* pixel_height = */ 64
};
static const uint8_t u8x8_st7567_jlx12864_init_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_C(0x0e2), /* soft reset */
U8X8_C(0x0ae), /* display off */
U8X8_C(0x040), /* set display start line to 0 */
U8X8_C(0x0a1), /* ADC set to reverse */
U8X8_C(0x0c0), /* common output mode */
// Flipmode
//U8X8_C(0x0a0), /* ADC set to reverse */
//U8X8_C(0x0c8), /* common output mode */
U8X8_C(0x0a6), /* display normal, bit val 0: LCD pixel off. */
U8X8_C(0x0a3), /* LCD bias 1/7 */
/* power on sequence from paxinstruments */
U8X8_C(0x028|4), /* all power control circuits on */
U8X8_DLY(50),
U8X8_C(0x028|6), /* all power control circuits on */
U8X8_DLY(50),
U8X8_C(0x028|7), /* all power control circuits on */
U8X8_DLY(50),
U8X8_C(0x023), /* v0 voltage resistor ratio */
U8X8_CA(0x081, 42>>2), /* set contrast, contrast value*/
U8X8_C(0x0ae), /* display off */
U8X8_C(0x0a5), /* enter powersafe: all pixel on, issue 142 */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
/* JLX12864 display */
uint8_t u8x8_d_st7567_jlx12864(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
uint8_t x, c;
uint8_t *ptr;
switch(msg)
{
case U8X8_MSG_DISPLAY_SETUP_MEMORY:
u8x8_d_helper_display_setup_memory(u8x8, &u8x8_st7567_jlx12864_display_info);
break;
case U8X8_MSG_DISPLAY_INIT:
u8x8_d_helper_display_init(u8x8);
u8x8_cad_SendSequence(u8x8, u8x8_st7567_jlx12864_init_seq);
break;
case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
if ( arg_int == 0 )
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_powersave0_seq);
else
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_powersave1_seq);
break;
case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
if ( arg_int == 0 )
{
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_flip0_seq);
u8x8->x_offset = u8x8->display_info->default_x_offset;
}
else
{
u8x8_cad_SendSequence(u8x8, u8x8_d_st7567_132x64_flip1_seq);
u8x8->x_offset = u8x8->display_info->flipmode_x_offset;
}
break;
#ifdef U8X8_WITH_SET_CONTRAST
case U8X8_MSG_DISPLAY_SET_CONTRAST:
u8x8_cad_StartTransfer(u8x8);
u8x8_cad_SendCmd(u8x8, 0x081 );
u8x8_cad_SendArg(u8x8, arg_int >> 2 ); /* st7567 has range from 0 to 63 */
u8x8_cad_EndTransfer(u8x8);
break;
#endif
case U8X8_MSG_DISPLAY_DRAW_TILE:
u8x8_cad_StartTransfer(u8x8);
x = ((u8x8_tile_t *)arg_ptr)->x_pos;
x *= 8;
x += u8x8->x_offset;
u8x8_cad_SendCmd(u8x8, 0x010 | (x>>4) );
u8x8_cad_SendCmd(u8x8, 0x000 | ((x&15)));
u8x8_cad_SendCmd(u8x8, 0x0b0 | (((u8x8_tile_t *)arg_ptr)->y_pos));
c = ((u8x8_tile_t *)arg_ptr)->cnt;
c *= 8;
ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr;
/*
The following if condition checks the hardware limits of the st7567
controller: It is not allowed to write beyond the display limits.
This is in fact an issue within flip mode.
*/
if ( c + x > 132u )
{
c = 132u;
c -= x;
}
do
{
u8x8_cad_SendData(u8x8, c, ptr); /* note: SendData can not handle more than 255 bytes */
arg_int--;
} while( arg_int > 0 );
u8x8_cad_EndTransfer(u8x8);
break;
default:
return 0;
}
return 1;
}