diff --git a/ports/espressif/boards/lolin_s2_pico/board.c b/ports/espressif/boards/lolin_s2_pico/board.c index b3c8cb4191..e2c24bb22a 100644 --- a/ports/espressif/boards/lolin_s2_pico/board.c +++ b/ports/espressif/boards/lolin_s2_pico/board.c @@ -27,8 +27,76 @@ #include "supervisor/board.h" #include "mpconfigboard.h" #include "shared-bindings/microcontroller/Pin.h" +#include "shared-bindings/board/__init__.h" +#include "shared-bindings/displayio/I2CDisplay.h" +#include "shared-module/displayio/__init__.h" +#include "shared-module/displayio/mipi_constants.h" +#include "shared-bindings/busio/I2C.h" +#include "supervisor/shared/board.h" +#include "shared-bindings/board/__init__.h" + +uint8_t display_init_sequence[] = { // SSD1306 + 0xAE, 0, // DISPLAY_OFF + 0x20, 1, 0x00, // Set memory addressing to horizontal mode. + 0x81, 1, 0xcf, // set contrast control + 0xA1, 0, // Column 127 is segment 0 + 0xA6, 0, // Normal display + 0xc8, 0, // Normal display + 0xA8, 1, 0x1f, // Mux ratio is height-1 + 0xd5, 1, 0x80, // Set divide ratio + 0xd9, 1, 0xf1, // Set pre-charge period + 0xda, 1, 0x02, // Set com configuration to 2 if height is 32 and width not 64 + 0xdb, 1, 0x40, // Set vcom configuration + 0x8d, 1, 0x14, // Enable charge pump + 0xAF, 0, // DISPLAY_ON +}; + +static void display_init(void) { + busio_i2c_obj_t *i2c = common_hal_board_create_i2c(0); + + displayio_i2cdisplay_obj_t *bus = &displays[0].i2cdisplay_bus; + bus->base.type = &displayio_i2cdisplay_type; + common_hal_displayio_i2cdisplay_construct(bus, + i2c, + 0x3c, + &pin_GPIO18 // reset + ); + + displayio_display_obj_t *display = &displays[0].display; + display->base.type = &displayio_display_type; + common_hal_displayio_display_construct(display, + bus, + 128, // Width + 32, // Height + 0, // column start + 0, // row start + 0, // rotation + 1, // Color depth + true, // grayscale + false, // pixels in byte share row. Only used with depth < 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 + 0x21, // Set column command + 0x22, // Set row command + 44, // Write ram command + display_init_sequence, + sizeof(display_init_sequence), + NULL, // no backlight pin + 0x81, // brightness command + 1.0f, // brightness + true, // single_byte_bounds + true, // data as commands + true, // auto_refresh + 60, // native_frames_per_second + true, // backlight_on_high + false, // SH1107_addressing + 0); // backlight pwm frequency +} void board_init(void) { + // init display + display_init(); // Debug UART #ifdef DEBUG common_hal_never_reset_pin(&pin_GPIO43); diff --git a/ports/espressif/boards/lolin_s2_pico/pins.c b/ports/espressif/boards/lolin_s2_pico/pins.c index 5c3f1f4db5..1afd508f03 100644 --- a/ports/espressif/boards/lolin_s2_pico/pins.c +++ b/ports/espressif/boards/lolin_s2_pico/pins.c @@ -1,4 +1,5 @@ #include "shared-bindings/board/__init__.h" +#include "shared-module/displayio/__init__.h" STATIC const mp_rom_map_elem_t board_module_globals_table[] = { CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS @@ -52,5 +53,7 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = { { MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_GPIO36) }, // Not labelled on booard, on schematic { MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_GPIO37) },// Not labelled on booard, on schematic { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) }, + + { MP_ROM_QSTR(MP_QSTR_DISPLAY), MP_ROM_PTR(&displays[0].display)} }; MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);