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dhalbertdhalbert
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Merge pull request #9456 from bradanlane/bls_explorer_displays_support
extend board driver support for SSD1681
2 parents 004b677 + e398c1d commit 0900984

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  • ports/raspberrypi/boards/bradanlanestudio_explorer_rp2040

1 file changed

+43
-21
lines changed

‎ports/raspberrypi/boards/bradanlanestudio_explorer_rp2040/board.c

Lines changed: 43 additions & 21 deletions
Original file line numberDiff line numberDiff line change
@@ -146,32 +146,33 @@ static int _set_vid(void) {
146146
vid_setting = value;
147147
/*
148148
Voltage Divider with 3.3V: (1241 * V)
149-
10K/ 15K = 1.98V = 2458
150-
15K/ 10K = 1.32V = 1638
151-
15K/4.7K = 0.79V = 980
152-
15K/ 2K = 1.32V = 482
153-
15K/ 1K = 1.32V = 256
149+
10K/ 15K = 1.98V = 2458 GT 2000 = TBD
150+
15K/ 10K = 1.32V = 1638 GT 1200 = Explorer with SSD1681 BW
151+
15K/4.7K = 0.79V = 980 GT 600 = Explorer with SSD1681 BWR
152+
15K/ 2K = 0.39V = 482 GT 300 = Explorer with SSD1608 BW
153+
100K/ 10K = 0.30V = 372 ditto
154+
15K/ 1K = 0.21V = 256 GT 150 = DCNextGen with SSD1681 BWR
154155
Note: extreme values (using 100K or greater) will not create a strong enough current for the ADC to read accurately
155156
Note: we do not get a usable value when the voltage divider is missing
156157
*/
157158

158159
// TODO change to min/max to tighten up the ranges (requires sampling of the initial boards)
159160
if (value > 2800) {
160-
vid_setting = 9;
161+
vid_setting = 9; // invalid
161162
} else if (value > 2000) {
162-
vid_setting = 5;
163+
vid_setting = 5; // future
163164
} else if (value > 1200) {
164-
vid_setting = 4;
165+
vid_setting = 4; // Explorer SSD1681 BW
165166
} else if (value > 600) {
166-
vid_setting = 3;
167+
vid_setting = 3; // Explorer SSD1681 BWR
167168
} else if (value > 300) {
168-
vid_setting = 2;
169+
vid_setting = 2; // Explorer SSD1608 BW
169170
} else if (value > 150) {
170-
vid_setting = 1;
171+
vid_setting = 1; // DCNextGen SSD1681 BWR
171172
} else {
172-
vid_setting = 0;
173-
}
173+
vid_setting = 0; // invalid
174174

175+
}
175176
return vid_setting;
176177
}
177178

@@ -227,8 +228,29 @@ void board_init(void) {
227228
display = &allocate_display()->epaper_display;
228229
display->base.type = &epaperdisplay_epaperdisplay_type;
229230

230-
// VID codes: 1 = tricolor ePaper (BWR), 2 = monochrome ePaper (BW), other codes are TBD
231+
// default to no rotation
232+
int rotation = 0;
231233
if (vid_setting == 1) {
234+
// DCNextGen SSD1681 BWR rotated 270
235+
rotation = 270;
236+
}
237+
238+
// default to BWR refresh rates
239+
float refresh_time = 15.0;
240+
float seconds_per_frame = 20.0;
241+
if ((vid_setting == 2) || (vid_setting == 4)) {
242+
// BW displays have faster refresh rates
243+
refresh_time = 1.0;
244+
seconds_per_frame = 5.0;
245+
}
246+
247+
// VID 1, 3, and 4 = SSD1681 display driver
248+
// VID 2 = SSD1608 display driver
249+
250+
// VID codes: see above
251+
if ((vid_setting == 1) || // DCNextGen SSD1681 BWR rotated 270
252+
(vid_setting == 3) || // Explorer SSD1681 BW rotated 0
253+
(vid_setting == 4)) { // Explorer SSD1681 BWR rotated 0
232254
common_hal_epaperdisplay_epaperdisplay_construct(
233255
display,
234256
bus,
@@ -241,7 +263,7 @@ void board_init(void) {
241263
HEIGHT + 0x60, // ram_height RAM is actually only 200 bits high but we use 296 to match the 9 bits
242264
0, // colstart
243265
0, // rowstart
244-
270, // rotation
266+
rotation, // rotation
245267
SSD_SET_RAMXPOS, // set_column_window_command
246268
SSD_SET_RAMYPOS, // set_row_window_command
247269
SSD_SET_RAMXCOUNT, // set_current_column_command
@@ -252,16 +274,16 @@ void board_init(void) {
252274
false, // color_bits_inverted
253275
0xFF0000, // highlight_color (RED for tri-color display)
254276
_refresh_sequence_ssd1681, sizeof(_refresh_sequence_ssd1681), // refresh_display_command
255-
15.0, // refresh_time
277+
refresh_time, // refresh_time
256278
&pin_GPIO9, // DEFAULT_SPI_BUS_BUSY, // busy_pin
257279
true, // busy_state
258-
20.0, // seconds_per_frame (does not seem the user can change this)
280+
seconds_per_frame, // seconds_per_frame (does not seem the user can change this)
259281
true, // always_toggle_chip_select
260282
false, // not grayscale
261283
false, // not acep
262284
false, // not two_byte_sequence_length
263285
true); // address_little_endian
264-
} else if (vid_setting == 2) {
286+
} else if (vid_setting == 2) { // Explorer SSD1608 BW
265287
common_hal_epaperdisplay_epaperdisplay_construct(
266288
display,
267289
bus,
@@ -274,7 +296,7 @@ void board_init(void) {
274296
HEIGHT /* + 0x60 */, // ram_height RAM is actually only 200 bits high but we use 296 to match the 9 bits
275297
0, // colstart
276298
0, // rowstart
277-
0, // rotation
299+
rotation, // rotation
278300
SSD_SET_RAMXPOS, // set_column_window_command
279301
SSD_SET_RAMYPOS, // set_row_window_command
280302
SSD_SET_RAMXCOUNT, // set_current_column_command
@@ -285,10 +307,10 @@ void board_init(void) {
285307
false, // color_bits_inverted
286308
0x000000, // highlight_color (RED for tri-color display)
287309
_refresh_sequence_ssd1608, sizeof(_refresh_sequence_ssd1608), // refresh_display_command
288-
1.0, // refresh_time
310+
refresh_time, // refresh_time
289311
&pin_GPIO9, // DEFAULT_SPI_BUS_BUSY, // busy_pin
290312
true, // busy_state
291-
5.0, // seconds_per_frame (does not seem the user can change this)
313+
seconds_per_frame, // seconds_per_frame (does not seem the user can change this)
292314
true, // always_toggle_chip_select
293315
false, // not grayscale
294316
false, // not acep

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