add: display initialisation

This commit is contained in:
Jacques Supcik 2023-11-13 22:26:00 +01:00
parent 4654f9c304
commit 471ee6f8c9
2 changed files with 170 additions and 0 deletions

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@ -25,5 +25,90 @@
*/
#include "supervisor/board.h"
#include "mpconfigboard.h"
#include "shared-bindings/microcontroller/Pin.h"
#include "shared-module/displayio/__init__.h"
#include "shared-module/displayio/mipi_constants.h"
#define DELAY 0x80
// display init sequence
uint8_t display_init_sequence[] = {
0x01, DELAY, 0x96, // _SWRESET and Delay 150ms
0x11, DELAY, 0xFF, // _SLPOUT and Delay 500ms
0x3A, DELAY | 1, 0x55, 0x0A, // _COLMOD (65K of RGB, 16 bits/pixel) and Delay 10ms
0x36, 0x01, 0x00, // _MADCTL
0x2A, 0x04, 0x00, 0x00, 0x00, 0xF0, // _CASET (0..240)
0x2B, 0x04, 0x00, 0x00, 0x00, 0xF0, // _RASET (0..240)
0x21, DELAY, 0x0A, // _INVON Hack and Delay 10ms
0x13, DELAY, 0x0A, // _NORON and Delay 10ms
0x29, DELAY, 0xFF, // _DISPON and Delay 500ms
};
static void display_init(void) {
fourwire_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
busio_spi_obj_t *spi = &bus->inline_bus;
common_hal_busio_spi_construct(
spi,
&pin_GPIO14, // CLK
&pin_GPIO13, // MOSI
&pin_GPIO12, // MISO
false); // Not half-duplex
common_hal_busio_spi_never_reset(spi);
bus->base.type = &fourwire_fourwire_type;
common_hal_fourwire_fourwire_construct(
bus,
spi,
&pin_GPIO27, // DC
&pin_GPIO15, // CS
&pin_GPIO4, // RST
24000000, // baudrate
0, // polarity
0 // phase
);
busdisplay_busdisplay_obj_t *display = &allocate_display()->display;
display->base.type = &busdisplay_busdisplay_type;
common_hal_busdisplay_busdisplay_construct(
display,
bus,
240, // width (after rotation)
240, // height (after rotation)
0, // column start
80, // row start
0, // rotation
16, // color depth
false, // grayscale
false, // pixels in a byte share a row. Only valid for depths < 8
1, // bytes per cell. Only valid for depths < 8
false, // reverse_pixels_in_byte. Only valid for depths < 8
true, // reverse_pixels_in_word
MIPI_COMMAND_SET_COLUMN_ADDRESS, // set column command
MIPI_COMMAND_SET_PAGE_ADDRESS, // set row command
MIPI_COMMAND_WRITE_MEMORY_START, // write memory command
display_init_sequence,
sizeof(display_init_sequence),
&pin_GPIO19, // backlight pin
NO_BRIGHTNESS_COMMAND,
1.0f, // brightness
false, // single_byte_bounds
false, // data_as_commands
true, // auto_refresh
60, // native_frames_per_second
true, // backlight_on_high
false, // SH1107_addressing
50000 // backlight pwm frequency
);
}
void board_init(void) {
// Display
display_init();
}
// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.

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@ -25,5 +25,90 @@
*/
#include "supervisor/board.h"
#include "mpconfigboard.h"
#include "shared-bindings/microcontroller/Pin.h"
#include "shared-module/displayio/__init__.h"
#include "shared-module/displayio/mipi_constants.h"
#define DELAY 0x80
// display init sequence
uint8_t display_init_sequence[] = {
0x01, DELAY, 0x96, // _SWRESET and Delay 150ms
0x11, DELAY, 0xFF, // _SLPOUT and Delay 500ms
0x3A, DELAY | 1, 0x55, 0x0A, // _COLMOD (65K of RGB, 16 bits/pixel) and Delay 10ms
0x36, 0x01, 0x00, // _MADCTL
0x2A, 0x04, 0x00, 0x00, 0x00, 0xF0, // _CASET (0..240)
0x2B, 0x04, 0x00, 0x00, 0x00, 0xF0, // _RASET (0..240)
0x21, DELAY, 0x0A, // _INVON Hack and Delay 10ms
0x13, DELAY, 0x0A, // _NORON and Delay 10ms
0x29, DELAY, 0xFF, // _DISPON and Delay 500ms
};
static void display_init(void) {
fourwire_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
busio_spi_obj_t *spi = &bus->inline_bus;
common_hal_busio_spi_construct(
spi,
&pin_GPIO14, // CLK
&pin_GPIO13, // MOSI
&pin_GPIO12, // MISO
false); // Not half-duplex
common_hal_busio_spi_never_reset(spi);
bus->base.type = &fourwire_fourwire_type;
common_hal_fourwire_fourwire_construct(
bus,
spi,
&pin_GPIO27, // DC
&pin_GPIO15, // CS
&pin_GPIO4, // RST
24000000, // baudrate
0, // polarity
0 // phase
);
busdisplay_busdisplay_obj_t *display = &allocate_display()->display;
display->base.type = &busdisplay_busdisplay_type;
common_hal_busdisplay_busdisplay_construct(
display,
bus,
240, // width (after rotation)
240, // height (after rotation)
0, // column start
80, // row start
0, // rotation
16, // color depth
false, // grayscale
false, // pixels in a byte share a row. Only valid for depths < 8
1, // bytes per cell. Only valid for depths < 8
false, // reverse_pixels_in_byte. Only valid for depths < 8
true, // reverse_pixels_in_word
MIPI_COMMAND_SET_COLUMN_ADDRESS, // set column command
MIPI_COMMAND_SET_PAGE_ADDRESS, // set row command
MIPI_COMMAND_WRITE_MEMORY_START, // write memory command
display_init_sequence,
sizeof(display_init_sequence),
&pin_GPIO19, // backlight pin
NO_BRIGHTNESS_COMMAND,
1.0f, // brightness
false, // single_byte_bounds
false, // data_as_commands
true, // auto_refresh
60, // native_frames_per_second
true, // backlight_on_high
false, // SH1107_addressing
50000 // backlight pwm frequency
);
}
void board_init(void) {
// Display
display_init();
}
// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.