micropython · initdc · Feb 4, 2023
diff --git a/ports/rp2/boards/VCC_GND_RP2040/README.md b/ports/rp2/boards/VCC_GND_RP2040/README.md
@@ -0,0 +1,34 @@
+# VCC-GND Studio YD-RP2040
+
+The VCC-GND Studio YD-RP2040 Board is based on the Raspberry Pi RP2040 and can be
+purchased with 4/8/16 MiB of flash.
+
+These boards are available from a number of resellers and often have the name
+"YD-RP2040". initdc maintain the [YD-RP2040](https://github.com/initdc/YD-RP2040/tree/master)
+repository containing information on the board.
+
+## Build notes
+
+Builds can be configured with the `BOARD_VARIANT` parameter. Valid variants
+can be displayed with the `query-variant` target. An example:
+
+```bash
+> cd ports/rp2
+> make BOARD=VCC_GND_RP2040 query-variants
+VARIANTS: flash_4mb flash_8mb flash_16mb
+> make BOARD=VCC_GND_RP2040 BOARD_VARIANT=flash_8mb submodules all  # Build the 8 MiB variant
+```
+
+`flash_4mb` is the default if `BOARD_VARIANT` is not supplied.
+
+## Board-specific modules
+
+The `board` module contains definitions for the onboard LED, onboard WS2812B and user button.
+
+Example:
+
+```python
+> import board
+> board.led.toggle()  # Toggles the state of the on-board LED
+> board.key.value()  # Returns 0 or 1 corresponding to the state of the user key
+```
diff --git a/ports/rp2/boards/VCC_GND_RP2040/board.json b/ports/rp2/boards/VCC_GND_RP2040/board.json
@@ -0,0 +1,24 @@
+{
+    "deploy": [
+        "deploy.md"
+    ],
+    "docs": "",
+    "features": [
+        "Breadboard Friendly",
+        "SPI Flash",
+        "USB-C",
+        "WS2812B"
+    ],
+    "images": [
+        "YD-RP2040.jpg"
+    ],
+    "mcu": "rp2040",
+    "product": "YD-RP2040",
+    "url": "http://vcc-gnd.com/",
+    "variants": {
+        "flash_4mb": "4 MiB Flash",
+        "flash_8mb": "8 MiB Flash",
+        "flash_16mb": "16 MiB Flash"
+    },
+    "vendor": "VCC-GND Studio"
+}
diff --git a/ports/rp2/boards/VCC_GND_RP2040/deploy.md b/ports/rp2/boards/VCC_GND_RP2040/deploy.md
@@ -0,0 +1,8 @@
+### Flashing via UF2 bootloader
+
+To get the board in bootloader mode ready for the firmware update, execute
+`machine.bootloader()` at the MicroPython REPL.  Alternatively, hold
+down the BOOTSEL button while pressing reset (NRST).  The uf2 file below
+should then be copied to the USB mass storage device that appears.  Once
+programming of the new firmware is complete the device will automatically reset
+and be ready for use.
diff --git a/ports/rp2/boards/VCC_GND_RP2040/manifest.py b/ports/rp2/boards/VCC_GND_RP2040/manifest.py
@@ -0,0 +1,2 @@
+include("$(PORT_DIR)/boards/manifest.py")
+freeze("./modules")
diff --git a/ports/rp2/boards/VCC_GND_RP2040/modules/board.py b/ports/rp2/boards/VCC_GND_RP2040/modules/board.py
@@ -0,0 +1,4 @@
+from machine import Pin
+
+led = Pin(25, Pin.OUT)
+key = Pin(24, Pin.IN, Pin.PULL_UP)
diff --git a/ports/rp2/boards/VCC_GND_RP2040/mpconfigboard.cmake b/ports/rp2/boards/VCC_GND_RP2040/mpconfigboard.cmake
@@ -0,0 +1,22 @@
+# CMake file for VCC-GND Studio YD-RP2040 boards
+
+# The VCC-GND Studio boards don't have official pico-sdk support so we define it
+# See also: https://github.com/raspberrypi/pico-sdk/tree/master/src/boards/include/boards
+list(APPEND PICO_BOARD_HEADER_DIRS ${MICROPY_BOARD_DIR})
+
+# Freeze board.py
+set(MICROPY_FROZEN_MANIFEST ${MICROPY_BOARD_DIR}/manifest.py)
+
+# Provide different variants for the downloads page
+set(BOARD_VARIANTS "flash_4mb flash_8mb flash_16mb")
+
+# Select the 4MB variant as the default
+set(PICO_BOARD "vccgndstudio_4mb")
+
+if("${BOARD_VARIANT}" STREQUAL "flash_8mb")
+set(PICO_BOARD "vccgndstudio_8mb")
+endif()
+
+if("${BOARD_VARIANT}" STREQUAL "flash_16mb")
+set(PICO_BOARD "vccgndstudio_16mb")
+endif()
diff --git a/ports/rp2/boards/VCC_GND_RP2040/mpconfigboard.h b/ports/rp2/boards/VCC_GND_RP2040/mpconfigboard.h
@@ -0,0 +1,7 @@
+#define MICROPY_HW_BOARD_NAME "VCC-GND Studio YD-RP2040"
+
+// Allow 1MB for the firmware image itself, allocate the remainder to the filesystem
+#define MICROPY_HW_FLASH_STORAGE_BYTES (PICO_FLASH_SIZE_BYTES - (1 * 1024 * 1024))
+
+// https://github.com/adafruit/circuitpython/blob/main/ports/raspberrypi/boards/vcc_gnd_yd_rp2040/mpconfigboard.h#L4
+#define MICROPY_HW_NEOPIXEL (&pin_GPIO23)
diff --git a/ports/rp2/boards/VCC_GND_RP2040/pins.csv b/ports/rp2/boards/VCC_GND_RP2040/pins.csv
@@ -0,0 +1,4 @@
+RGB,GPIO23
+NEOPIXEL,GPIO23
+BUTTON,GPIO24
+LED,GPIO25
diff --git a/ports/rp2/boards/VCC_GND_RP2040/vccgndstudio_16mb.h b/ports/rp2/boards/VCC_GND_RP2040/vccgndstudio_16mb.h
@@ -0,0 +1,18 @@
+// A pico-sdk board definition is required since the WeAct Studio boards are
+// not officially supported.
+//
+// Officially supported boards:
+//     https://github.com/raspberrypi/pico-sdk/tree/master/src/boards/include/boards
+
+#ifndef _BOARDS_VCCGNDSTUDIO_16MB_H
+#define _BOARDS_VCCGNDSTUDIO_16MB_H
+
+#include "vccgndstudio_common.h"
+
+#define VCCGNDSTUDIO_16MB
+
+#ifndef PICO_FLASH_SIZE_BYTES
+#define PICO_FLASH_SIZE_BYTES (16 * 1024 * 1024)
+#endif
+
+#endif
diff --git a/ports/rp2/boards/VCC_GND_RP2040/vccgndstudio_4mb.h b/ports/rp2/boards/VCC_GND_RP2040/vccgndstudio_4mb.h
@@ -0,0 +1,18 @@
+// A pico-sdk board definition is required since the WeAct Studio boards are
+// not officially supported.
+//
+// Officially supported boards:
+//     https://github.com/raspberrypi/pico-sdk/tree/master/src/boards/include/boards
+
+#ifndef _BOARDS_VCCGNDSTUDIO_4MB_H
+#define _BOARDS_VCCGNDSTUDIO_4MB_H
+
+#include "vccgndstudio_common.h"
+
+#define VCCGNDSTUDIO_4MB
+
+#ifndef PICO_FLASH_SIZE_BYTES
+#define PICO_FLASH_SIZE_BYTES (4 * 1024 * 1024)
+#endif
+
+#endif
diff --git a/ports/rp2/boards/VCC_GND_RP2040/vccgndstudio_8mb.h b/ports/rp2/boards/VCC_GND_RP2040/vccgndstudio_8mb.h
@@ -0,0 +1,18 @@
+// A pico-sdk board definition is required since the WeAct Studio boards are
+// not officially supported.
+//
+// Officially supported boards:
+//     https://github.com/raspberrypi/pico-sdk/tree/master/src/boards/include/boards
+
+#ifndef _BOARDS_VCCGNDSTUDIO_8MB_H
+#define _BOARDS_VCCGNDSTUDIO_8MB_H
+
+#include "vccgndstudio_common.h"
+
+#define VCCGNDSTUDIO_8MB
+
+#ifndef PICO_FLASH_SIZE_BYTES
+#define PICO_FLASH_SIZE_BYTES (8 * 1024 * 1024)
+#endif
+
+#endif
diff --git a/ports/rp2/boards/VCC_GND_RP2040/vccgndstudio_common.h b/ports/rp2/boards/VCC_GND_RP2040/vccgndstudio_common.h
@@ -0,0 +1,62 @@
+// Common configuration to all WeAct Studio boards (only flash size differs)
+
+#ifndef _BOARDS_VCCGNDSTUDIO_COMMON_H
+#define _BOARDS_VCCGNDSTUDIO_COMMON_H
+
+// --- UART ---
+#ifndef PICO_DEFAULT_UART
+#define PICO_DEFAULT_UART 0
+#endif
+#ifndef PICO_DEFAULT_UART_TX_PIN
+#define PICO_DEFAULT_UART_TX_PIN 0
+#endif
+#ifndef PICO_DEFAULT_UART_RX_PIN
+#define PICO_DEFAULT_UART_RX_PIN 1
+#endif
+
+// --- LED ---
+#ifndef PICO_DEFAULT_LED_PIN
+#define PICO_DEFAULT_LED_PIN 25
+#endif
+
+// --- I2C ---
+#ifndef PICO_DEFAULT_I2C
+#define PICO_DEFAULT_I2C 0
+#endif
+#ifndef PICO_DEFAULT_I2C_SDA_PIN
+#define PICO_DEFAULT_I2C_SDA_PIN 4
+#endif
+#ifndef PICO_DEFAULT_I2C_SCL_PIN
+#define PICO_DEFAULT_I2C_SCL_PIN 5
+#endif
+
+// --- SPI ---
+#ifndef PICO_DEFAULT_SPI
+#define PICO_DEFAULT_SPI 0
+#endif
+#ifndef PICO_DEFAULT_SPI_SCK_PIN
+#define PICO_DEFAULT_SPI_SCK_PIN 18
+#endif
+#ifndef PICO_DEFAULT_SPI_TX_PIN
+#define PICO_DEFAULT_SPI_TX_PIN 19
+#endif
+#ifndef PICO_DEFAULT_SPI_RX_PIN
+#define PICO_DEFAULT_SPI_RX_PIN 16
+#endif
+#ifndef PICO_DEFAULT_SPI_CSN_PIN
+#define PICO_DEFAULT_SPI_CSN_PIN 17
+#endif
+
+// --- FLASH ---
+#define PICO_BOOT_STAGE2_CHOOSE_W25Q080 1
+
+#ifndef PICO_FLASH_SPI_CLKDIV
+#define PICO_FLASH_SPI_CLKDIV 2
+#endif
+
+// All boards have B1 RP2040
+#ifndef PICO_RP2040_B0_SUPPORTED
+#define PICO_RP2040_B0_SUPPORTED 0
+#endif
+
+#endif
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,2 @@
		include("$(PORT_DIR)/boards/manifest.py")
		freeze("./modules")