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jeplerjepler
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Add Adafruit Floppsy RP2040
This is an early board revision, changes are anticipated up until release. However, main parts of functionality check out.
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‎ports/raspberrypi/boards/adafruit_floppsy_rp2040/board.c

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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "supervisor/board.h"
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#include "mpconfigboard.h"
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#include "shared-bindings/busio/SPI.h"
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#include "shared-bindings/fourwire/FourWire.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-module/displayio/__init__.h"
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#include "shared-module/displayio/mipi_constants.h"
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#include "shared-bindings/board/__init__.h"
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fourwire_fourwire_obj_t board_display_obj;
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#define DELAY 0x80
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uint8_t display_init_sequence[] = {
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0x01, 0 | DELAY, 120, // SWRESET
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0x11, 0 | DELAY, 5, // SLPOUT
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0x36, 1, 0b10100000, // _MADCTL for rotation 0
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0x3a, 1, 0x55, // COLMOD - 16bit color
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0x21, 0, // _INVON
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0x13, 0, // _NORON
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0x29, 0 | DELAY, 5, // _DISPON
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};
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void board_init(void) {
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busio_spi_obj_t *spi = common_hal_board_create_spi(0);
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fourwire_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
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bus->base.type = &fourwire_fourwire_type;
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common_hal_fourwire_fourwire_construct(bus,
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spi,
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&pin_GPIO25, // TFT_DC Command or data
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&pin_GPIO29, // TFT_CS Chip select
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NULL, // TFT_RESET Reset
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40000000, // Baudrate
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0, // Polarity
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0); // Phase
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busdisplay_busdisplay_obj_t *display = &allocate_display()->display;
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display->base.type = &busdisplay_busdisplay_type;
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common_hal_busdisplay_busdisplay_construct(
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display,
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bus,
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240, // Width (after rotation)
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240, // Height (after rotation)
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80, // column start
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0, // row start
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0, // rotation
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16, // Color depth
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false, // Grayscale
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false, // Pixels in a byte share a row. Only used for depth < 8
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1, // bytes per cell. Only valid for depths < 8
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false, // reverse_pixels_in_byte. Only valid for depths < 8
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true, // reverse_pixels_in_word
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MIPI_COMMAND_SET_COLUMN_ADDRESS, // Set column command
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MIPI_COMMAND_SET_PAGE_ADDRESS, // Set row command
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MIPI_COMMAND_WRITE_MEMORY_START, // Write memory command
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display_init_sequence,
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sizeof(display_init_sequence),
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&pin_GPIO28, // backlight pin
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NO_BRIGHTNESS_COMMAND,
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1.0f, // brightness
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false, // single_byte_bounds
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false, // data_as_commands
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true, // auto_refresh
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60, // native_frames_per_second
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true, // backlight_on_high
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false, // not SH1107
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50000); // backlight pwm frequency
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}
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void board_deinit(void) {
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common_hal_displayio_release_displays();
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}
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// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.

‎ports/raspberrypi/boards/adafruit_floppsy_rp2040/mpconfigboard.h

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#define MICROPY_HW_BOARD_NAME "Adafruit Floppsy RP2040"
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#define MICROPY_HW_MCU_NAME "rp2040"
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#define MICROPY_HW_NEOPIXEL (&pin_GPIO15)
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#define DEFAULT_I2C_BUS_SCL (&pin_GPIO17)
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#define DEFAULT_I2C_BUS_SDA (&pin_GPIO16)
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#define CIRCUITPY_BOARD_SPI (1)
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#define CIRCUITPY_BOARD_SPI_PIN {{.clock = &pin_GPIO26, .mosi = &pin_GPIO27}}

‎ports/raspberrypi/boards/adafruit_floppsy_rp2040/mpconfigboard.mk

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USB_VID = 0x239A
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USB_PID = 0x8152
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USB_PRODUCT = "Floppsy RP2040"
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USB_MANUFACTURER = "Adafruit"
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CHIP_VARIANT = RP2040
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CHIP_FAMILY = rp2
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EXTERNAL_FLASH_DEVICES = "GD25Q64C,W25Q64JVxQ,W25Q128JV"

‎ports/raspberrypi/boards/adafruit_floppsy_rp2040/pico-sdk-configboard.h

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// Put board-specific pico-sdk definitions here. This file must exist.
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// Allow extra time for xosc to start.
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#define PICO_XOSC_STARTUP_DELAY_MULTIPLIER 64

‎ports/raspberrypi/boards/adafruit_floppsy_rp2040/pins.c

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#include "shared-bindings/board/__init__.h"
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STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
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CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
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{ MP_OBJ_NEW_QSTR(MP_QSTR_DENSITY), MP_ROM_PTR(&pin_GPIO0) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SELECT), MP_ROM_PTR(&pin_GPIO1) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_MOTOR), MP_ROM_PTR(&pin_GPIO2) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_DIRECTION), MP_ROM_PTR(&pin_GPIO3) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_STEP), MP_ROM_PTR(&pin_GPIO4) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_WRDATA), MP_ROM_PTR(&pin_GPIO5) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_WRGATE), MP_ROM_PTR(&pin_GPIO6) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SIDE), MP_ROM_PTR(&pin_GPIO7) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_FLOPPY_DIRECTION), MP_ROM_PTR(&pin_GPIO8) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_INDEX), MP_ROM_PTR(&pin_GPIO9) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_TRACK0), MP_ROM_PTR(&pin_GPIO10) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_WRPROT), MP_ROM_PTR(&pin_GPIO11) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_RDDATA), MP_ROM_PTR(&pin_GPIO12) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_READY), MP_ROM_PTR(&pin_GPIO13) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_GPIO16) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_GPIO17) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_NEOPIXEL), MP_ROM_PTR(&pin_GPIO14) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SD_CD), MP_ROM_PTR(&pin_GPIO24) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SD_SCK), MP_ROM_PTR(&pin_GPIO18) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SDIO_CLK), MP_ROM_PTR(&pin_GPIO18) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SD_MOSI), MP_ROM_PTR(&pin_GPIO19) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SDIO_COMMAND), MP_ROM_PTR(&pin_GPIO19) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SD_MISO), MP_ROM_PTR(&pin_GPIO20) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SDIO_DATA0), MP_ROM_PTR(&pin_GPIO20) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SDIO_DATA1), MP_ROM_PTR(&pin_GPIO21) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SDIO_DATA2), MP_ROM_PTR(&pin_GPIO22) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SD_CS), MP_ROM_PTR(&pin_GPIO23) },
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{ MP_OBJ_NEW_QSTR(MP_QSTR_SDIO_DATA3), MP_ROM_PTR(&pin_GPIO23) },
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{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
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{ MP_ROM_QSTR(MP_QSTR_STEMMA_I2C), MP_ROM_PTR(&board_i2c_obj) },
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{ MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
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};
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MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);

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