Merge remote-tracking branch 'origin/main' into synthio-lfo-dag

locale/circuitpython.pot

@@ -207,11 +207,11 @@ msgstr ""
 
 #: ports/raspberrypi/bindings/cyw43/__init__.c py/argcheck.c py/objexcept.c
 #: shared-bindings/canio/CAN.c shared-bindings/digitalio/Pull.c
-#: shared-module/synthio/LFO.c shared-module/synthio/Synthesizer.c
+#: shared-module/synthio/Synthesizer.c
 msgid "%q must be of type %q or %q, not %q"
 msgstr ""
 
-#: py/argcheck.c py/obj.c py/objstrunicode.c
+#: py/argcheck.c py/obj.c py/objstrunicode.c shared-module/synthio/__init__.c
 msgid "%q must be of type %q, not %q"
 msgstr ""
 
@@ -1430,6 +1430,10 @@ msgstr ""
 msgid "Nimble out of memory"
 msgstr ""
 
+#: ports/atmel-samd/common-hal/busio/UART.c
+msgid "No %q pin"
+msgstr ""
+
 #: ports/espressif/common-hal/_bleio/Characteristic.c
 #: ports/nrf/common-hal/_bleio/Characteristic.c
 msgid "No CCCD for this Characteristic"
@@ -1478,14 +1482,12 @@ msgstr ""
 msgid "No MOSI pin"
 msgstr ""
 
-#: ports/atmel-samd/common-hal/busio/UART.c
 #: ports/espressif/common-hal/busio/UART.c
 #: ports/mimxrt10xx/common-hal/busio/UART.c ports/nrf/common-hal/busio/UART.c
 #: ports/raspberrypi/common-hal/busio/UART.c ports/stm/common-hal/busio/UART.c
 msgid "No RX pin"
 msgstr ""
 
-#: ports/atmel-samd/common-hal/busio/UART.c
 #: ports/espressif/common-hal/busio/UART.c
 #: ports/mimxrt10xx/common-hal/busio/UART.c ports/nrf/common-hal/busio/UART.c
 #: ports/raspberrypi/common-hal/busio/UART.c ports/stm/common-hal/busio/UART.c
@@ -2112,8 +2114,8 @@ msgstr ""
 msgid "UART de-init"
 msgstr ""
 
-#: ports/atmel-samd/common-hal/busio/UART.c ports/cxd56/common-hal/busio/UART.c
+#: ports/cxd56/common-hal/busio/UART.c ports/espressif/common-hal/busio/UART.c
-#: ports/espressif/common-hal/busio/UART.c ports/stm/common-hal/busio/UART.c
+#: ports/stm/common-hal/busio/UART.c
 msgid "UART init"
 msgstr ""
 

locale/es.po

@@ -8,8 +8,8 @@ msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2021-01-04 12:55-0600\n"
-"PO-Revision-Date: 2023-04-22 15:51+0000\n"
+"PO-Revision-Date: 2023-05-16 19:50+0000\n"
-"Last-Translator: Jose David M <jquintana202020@gmail.com>\n"
+"Last-Translator: Luis Ruiz San Segundo <luisan00@hotmail.com>\n"
 "Language-Team: \n"
 "Language: es\n"
 "MIME-Version: 1.0\n"
@@ -206,7 +206,7 @@ msgstr "%q debe ser un bytearray o array de tipo 'H' o 'B'"
 
 #: shared-bindings/audiocore/RawSample.c
 msgid "%q must be a bytearray or array of type 'h', 'H', 'b', or 'B'"
-msgstr "%q debe ser un byte-matriz o matriz de tipo 'h', 'H', 'b', o 'B'"
+msgstr "%q debe ser un bytearray o array de tipo 'h', 'H', 'b', o 'B'"
 
 #: ports/espressif/common-hal/analogbufio/BufferedIn.c
 msgid "%q must be array of type 'H'"
@@ -601,8 +601,7 @@ msgstr "Por debajo de la tasa mínima de refrescamiento"
 
 #: ports/raspberrypi/common-hal/audiobusio/I2SOut.c
 msgid "Bit clock and word select must be sequential pins"
-msgstr ""
+msgstr "Los pines \"clock\" y \"word-select\" deben ser consecutivos"
-"Los pines de reloj de bit y de selector de palabra deben ser secuenciales"
 
 #: ports/atmel-samd/common-hal/audiobusio/I2SOut.c
 msgid "Bit clock and word select must share a clock unit"

ports/atmel-samd/common-hal/busio/UART.c

@@ -241,7 +241,7 @@ void common_hal_busio_uart_construct(busio_uart_obj_t *self,
     }
 
     if (usart_async_init(usart_desc_p, sercom, self->buffer, self->buffer_length, NULL) != ERR_NONE) {
-        mp_raise_RuntimeError(translate("UART init"));
+        mp_raise_RuntimeError(NULL);
     }
 
     // usart_async_init() sets a number of defaults based on a prototypical SERCOM
@@ -396,7 +396,7 @@ void common_hal_busio_uart_deinit(busio_uart_obj_t *self) {
 // Read characters.
 size_t common_hal_busio_uart_read(busio_uart_obj_t *self, uint8_t *data, size_t len, int *errcode) {
     if (self->rx_pin == NO_PIN) {
-        mp_raise_ValueError(translate("No RX pin"));
+        mp_raise_ValueError_varg(translate("No %q pin"), MP_QSTR_rx);
     }
 
     // This assignment is only here because the usart_async routines take a *const argument.
@@ -453,7 +453,7 @@ size_t common_hal_busio_uart_read(busio_uart_obj_t *self, uint8_t *data, size_t
 // Write characters.
 size_t common_hal_busio_uart_write(busio_uart_obj_t *self, const uint8_t *data, size_t len, int *errcode) {
     if (self->tx_pin == NO_PIN) {
-        mp_raise_ValueError(translate("No TX pin"));
+        mp_raise_ValueError_varg(translate("No %q pin"), MP_QSTR_tx);
     }
 
     // This assignment is only here because the usart_async routines take a *const argument.

ports/espressif/Makefile

@@ -120,8 +120,14 @@ CFLAGS += -DSTACK_CANARY_VALUE=0xa5a5a5a5
 
 #Debugging/Optimization
 ifeq ($(DEBUG), 1)
-  CFLAGS += -DDEBUG -ggdb
+	CFLAGS += -ggdb
+	ifeq ($(IDF_TARGET_ARCH),riscv)
+		OPTIMIZATION_FLAGS ?= -Os
+		CFLAGS += -DNDEBUG
+	else
 		OPTIMIZATION_FLAGS ?= -Og
+		CFLAGS += -DDEBUG
+	endif
 	# You may want to enable these flags to make setting breakpoints easier.
 	# CFLAGS += -fno-inline -fno-ipa-sra
 else

ports/espressif/boards/m5stack_timer_camera_x/board.c

@@ -0,0 +1,49 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2023 Bill Sideris, independently providing these changes.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "supervisor/board.h"
+#include "mpconfigboard.h"
+#include "shared-bindings/microcontroller/Pin.h"
+#include "components/driver/include/driver/gpio.h"
+#include "components/hal/include/hal/gpio_hal.h"
+#include "common-hal/microcontroller/Pin.h"
+
+bool espressif_board_reset_pin_number(gpio_num_t pin_number) {
+    if (pin_number == 33) {
+        /*
+         * Turn on BAT_HOLD by default,
+         * so that the board does not power off
+         * when usb is disconnected or
+         * the power button is released.
+         */
+        gpio_set_direction(pin_number, GPIO_MODE_DEF_OUTPUT);
+        gpio_set_level(pin_number, true);
+        return true;
+    }
+    return false;
+}
+
+// Use the MP_WEAK supervisor/shared/board.c versions of routines not defined here.

ports/espressif/boards/m5stack_timer_camera_x/mpconfigboard.h

@@ -0,0 +1,48 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2023 Bill Sideris, independently providing these changes.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#define MICROPY_HW_BOARD_NAME       "M5Stack Timer Camera X"
+#define MICROPY_HW_MCU_NAME         "ESP32"
+
+#define MICROPY_HW_LED_STATUS       (&pin_GPIO2)
+
+#define CIRCUITPY_BOARD_I2C         (3)
+#define CIRCUITPY_BOARD_I2C_PIN     {{.scl = &pin_GPIO13, .sda = &pin_GPIO4}, \
+                                     {.scl = &pin_GPIO14, .sda = &pin_GPIO12}, \
+                                     {.scl = &pin_GPIO23, .sda = &pin_GPIO25}}
+
+// Ext. Port
+// BM8563
+// Camera sensor
+
+// UART pins attached to the USB-serial converter chip
+#define CIRCUITPY_CONSOLE_UART_TX (&pin_GPIO1)
+#define CIRCUITPY_CONSOLE_UART_RX (&pin_GPIO3)
+
+#define CIRCUITPY_I2C_ALLOW_INTERNAL_PULL_UP (1)
+
+// espcamera.FrameSize.QXGA, half a megabyte result image.jpeg
+#define DEFAULT_RESERVED_PSRAM      (1572864)

ports/espressif/boards/m5stack_timer_camera_x/mpconfigboard.mk

@@ -0,0 +1,8 @@
+CIRCUITPY_CREATOR_ID =  0x10151015
+CIRCUITPY_CREATION_ID = 0x00320009
+
+IDF_TARGET = esp32
+
+CIRCUITPY_ESP_FLASH_MODE = qio
+CIRCUITPY_ESP_FLASH_FREQ = 80m
+CIRCUITPY_ESP_FLASH_SIZE = 4MB

ports/espressif/boards/m5stack_timer_camera_x/pins.c

@@ -0,0 +1,87 @@
+#include "py/objtuple.h"
+#include "shared-bindings/board/__init__.h"
+#include "shared-module/displayio/__init__.h"
+
+CIRCUITPY_BOARD_BUS_SINGLETON(bm8563_i2c, i2c, 1) // RTC
+CIRCUITPY_BOARD_BUS_SINGLETON(sscb_i2c, i2c, 2) // Camera sensor
+
+STATIC const mp_rom_obj_tuple_t camera_data_tuple = {
+    // The order matters.
+    // They must be ordered from low to high (Y2, Y3 .. Y9).
+
+    // Do not include any of the control pins in here.
+    {&mp_type_tuple},
+    8,
+    {
+        MP_ROM_PTR(&pin_GPIO32), // Y2
+        MP_ROM_PTR(&pin_GPIO35), // Y3
+        MP_ROM_PTR(&pin_GPIO34), // Y4
+        MP_ROM_PTR(&pin_GPIO5),  // Y5
+        MP_ROM_PTR(&pin_GPIO39), // Y6
+        MP_ROM_PTR(&pin_GPIO18), // Y7
+        MP_ROM_PTR(&pin_GPIO36), // Y8
+        MP_ROM_PTR(&pin_GPIO19)  // Y9
+    }
+};
+
+STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
+    CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
+
+    { MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_GPIO2) },
+
+    // "Ext. Port", the label says [G, V, SDA/G4, SCL/G13]
+    { MP_ROM_QSTR(MP_QSTR_G4), MP_ROM_PTR(&pin_GPIO4) },
+    { MP_ROM_QSTR(MP_QSTR_G13), MP_ROM_PTR(&pin_GPIO13) },
+    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_GPIO4) },
+    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_GPIO13) },
+    { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
+
+    /* Battery
+     *
+     * No alternative names as they are not broken out
+     * and cannot be used for anything else.
+     */
+    { MP_ROM_QSTR(MP_QSTR_BAT_HOLD), MP_ROM_PTR(&pin_GPIO33) },
+    { MP_ROM_QSTR(MP_QSTR_BAT_ADC), MP_ROM_PTR(&pin_GPIO38) },
+
+    /* BM8563 I2C bus
+     *
+     * No alternative names as they are not broken out
+     * and cannot be used for anything else.
+     */
+    { MP_ROM_QSTR(MP_QSTR_BM8563_SCL), MP_ROM_PTR(&pin_GPIO14) },
+    { MP_ROM_QSTR(MP_QSTR_BM8563_SDA), MP_ROM_PTR(&pin_GPIO12) },
+    { MP_ROM_QSTR(MP_QSTR_BM8563_I2C), MP_ROM_PTR(&board_bm8563_i2c_obj) },
+
+    // Camera control
+    { MP_ROM_QSTR(MP_QSTR_VSYNC), MP_ROM_PTR(&pin_GPIO22) },
+    { MP_ROM_QSTR(MP_QSTR_HREF), MP_ROM_PTR(&pin_GPIO26) },
+    { MP_ROM_QSTR(MP_QSTR_PCLK), MP_ROM_PTR(&pin_GPIO21) },
+    { MP_ROM_QSTR(MP_QSTR_XCLK), MP_ROM_PTR(&pin_GPIO27) }, // xclk_freq_hz = 20000000
+    { MP_ROM_QSTR(MP_QSTR_RESET), MP_ROM_PTR(&pin_GPIO15) },
+
+    // Camera sensor I2C bus
+    { MP_ROM_QSTR(MP_QSTR_SSCB_SDA), MP_ROM_PTR(&pin_GPIO25) },
+    { MP_ROM_QSTR(MP_QSTR_SSCB_SCL), MP_ROM_PTR(&pin_GPIO23) },
+    { MP_ROM_QSTR(MP_QSTR_SSCB_I2C), MP_ROM_PTR(&board_sscb_i2c_obj) },
+
+    /*
+     * Camera data
+     *
+     * We don't really need to individually name each one,
+     * but they look cool in the tuple listing if we do.
+     *
+     * These are also not broken out.
+     */
+    { MP_ROM_QSTR(MP_QSTR_D), MP_ROM_PTR(&camera_data_tuple) },
+
+    { MP_ROM_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_GPIO19) },
+    { MP_ROM_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_GPIO36) },
+    { MP_ROM_QSTR(MP_QSTR_D7), MP_ROM_PTR(&pin_GPIO18) },
+    { MP_ROM_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_GPIO39) },
+    { MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_GPIO5) },
+    { MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_GPIO34) },
+    { MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_GPIO35) },
+    { MP_ROM_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_GPIO32) }
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);

ports/espressif/boards/m5stack_timer_camera_x/sdkconfig

@@ -0,0 +1,27 @@
+# ESP32-D0WDQ6-V3 (revision 3)
+CONFIG_ESP32_SPIRAM_SUPPORT=y
+CONFIG_ESP32_ECO3_CACHE_LOCK_FIX=y
+CONFIG_ESP32_REV_MIN_3=y
+
+# PSRAM
+CONFIG_D0WD_PSRAM_CLK_IO=17
+CONFIG_D0WD_PSRAM_CS_IO=16
+
+CONFIG_SPIRAM_MODE_OCT=y
+CONFIG_SPIRAM_TYPE_ESPPSRAM64=y
+CONFIG_SPIRAM_SIZE=8388608
+CONFIG_SPIRAM_SPEED_80M=y
+
+CONFIG_SPIRAM=y
+CONFIG_SPIRAM_BOOT_INIT=y
+CONFIG_SPIRAM_USE_MEMMAP=y
+CONFIG_SPIRAM_MEMTEST=y
+
+# Hostname
+CONFIG_LWIP_LOCAL_HOSTNAME="M5StackTimerX"
+
+# Camera
+CONFIG_OV3660_SUPPORT=y
+CONFIG_GC_SENSOR_SUBSAMPLE_MODE=y
+CONFIG_CAMERA_CORE0=y
+CONFIG_CAMERA_DMA_BUFFER_SIZE_MAX=32768

ports/espressif/common-hal/microcontroller/Pin.c

@@ -62,6 +62,11 @@ static const uint64_t pin_mask_reset_forbidden =
     GPIO_SEL_18 |         // USB D-
     GPIO_SEL_19 |         // USB D+
     #endif
+    #if defined(CONFIG_ESP_CONSOLE_UART_DEFAULT) && CONFIG_ESP_CONSOLE_UART_DEFAULT && CONFIG_ESP_CONSOLE_UART_NUM == 0
+    // Never reset debug UART/console pins.
+    GPIO_SEL_20 |
+    GPIO_SEL_21 |
+    #endif
     #endif // ESP32C3
 
     #if defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32S3)

ports/espressif/supervisor/usb_serial_jtag.c

@@ -101,21 +101,28 @@ bool usb_serial_jtag_connected(void) {
 }
 
 char usb_serial_jtag_read_char(void) {
-    if (ringbuf_num_filled(&ringbuf) == 0) {
+    if (ringbuf_num_filled(&ringbuf) == 0 && !usb_serial_jtag_ll_rxfifo_data_available()) {
         return -1;
     }
-    char c = ringbuf_get(&ringbuf);
+    char c = -1;
+    if (ringbuf_num_filled(&ringbuf) > 0) {
+        c = ringbuf_get(&ringbuf);
+    }
     // Maybe re-enable the recv interrupt if we've emptied the ringbuf.
     if (ringbuf_num_filled(&ringbuf) == 0) {
         usb_serial_jtag_ll_disable_intr_mask(USB_SERIAL_JTAG_INTR_SERIAL_OUT_RECV_PKT);
         _copy_out_of_fifo();
         usb_serial_jtag_ll_ena_intr_mask(USB_SERIAL_JTAG_INTR_SERIAL_OUT_RECV_PKT);
+        // May have only been ctrl-c.
+        if (c == -1 && ringbuf_num_filled(&ringbuf) > 0) {
+            c = ringbuf_get(&ringbuf);
+        }
     }
     return c;
 }
 
 bool usb_serial_jtag_bytes_available(void) {
-    return ringbuf_num_filled(&ringbuf) > 0;
+    return ringbuf_num_filled(&ringbuf) > 0 || usb_serial_jtag_ll_rxfifo_data_available();
 }
 
 void usb_serial_jtag_write(const char *text, uint32_t length) {

ports/raspberrypi/boards/adafruit_feather_rp2040/pins.c

@@ -26,8 +26,11 @@ STATIC const mp_rom_map_elem_t board_module_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_GPIO10) },
     { MP_ROM_QSTR(MP_QSTR_D11), MP_ROM_PTR(&pin_GPIO11) },
     { MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_GPIO12) },
-    { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_GPIO13) },
     { MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_GPIO13) },
+    { MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_GPIO13) },
+
+    { MP_ROM_QSTR(MP_QSTR_BUTTON), MP_ROM_PTR(&pin_GPIO4) },
+    { MP_ROM_QSTR(MP_QSTR_BOOT), MP_ROM_PTR(&pin_GPIO4) },
 
     { MP_ROM_QSTR(MP_QSTR_NEOPIXEL), MP_ROM_PTR(&pin_GPIO16) },
 

ports/raspberrypi/boards/lilygo_t_display_rp2040/board.c

@@ -0,0 +1,151 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#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
+#define LCD_POWER 22
+
+// display init sequence according to LilyGO example app
+uint8_t display_init_sequence[] = {
+    // sw reset
+    0x01, 0 | DELAY, 150,
+    // sleep out
+    0x11, 0 | DELAY, 255,
+    // normal display mode on
+    0x13, 0,
+    // display and color format settings
+    0x36, 1, 0x08,
+    0xB6, 2, 0x0A, 0x82,
+    0x3A, 1 | DELAY,  0x55, 10,
+    // ST7789V frame rate setting
+    0xB2, 5, 0x0C, 0x0C, 0x00, 0x33, 0x33,
+    // voltages: VGH / VGL
+    0xB7, 1, 0x35,
+    // ST7789V power setting
+    0xBB, 1, 0x28,
+    0xC0, 1, 0x0C,
+    0xC2, 2, 0x01, 0xFF,
+    0xC3, 1, 0x10,
+    0xC4, 1, 0x20,
+    0xC6, 1, 0x0F,
+    0xD0, 2, 0xA4, 0xA1,
+    // ST7789V gamma setting
+    0xE0, 14, 0xD0, 0x00, 0x02, 0x07, 0x0A, 0x28, 0x32, 0x44, 0x42, 0x06, 0x0E, 0x12, 0x14, 0x17,
+    0xE1, 14, 0xD0, 0x00, 0x02, 0x07, 0x0A, 0x28, 0x31, 0x54, 0x47, 0x0E, 0x1C, 0x17, 0x1B, 0x1E,
+    0x21, 0,
+    // display on
+    0x29, 0 | DELAY, 255,
+};
+
+static void display_init(void) {
+    displayio_fourwire_obj_t *bus = &allocate_display_bus()->fourwire_bus;
+    busio_spi_obj_t *spi = &bus->inline_bus;
+
+    common_hal_busio_spi_construct(
+        spi,
+        &pin_GPIO2,     // CLK
+        &pin_GPIO3,     // MOSI
+        NULL,           // MISO not connected
+        false);         // Not half-duplex
+
+    common_hal_busio_spi_never_reset(spi);
+
+    bus->base.type = &displayio_fourwire_type;
+
+    common_hal_displayio_fourwire_construct(
+        bus,
+        spi,
+        &pin_GPIO1,     // DC
+        &pin_GPIO5,     // CS
+        NULL,           // RST (Reset pin tie to 0, do not set here)
+        40000000,       // baudrate
+        1,              // polarity
+        0               // phase
+        );
+
+    displayio_display_obj_t *display = &allocate_display()->display;
+    display->base.type = &displayio_display_type;
+
+    common_hal_displayio_display_construct(
+        display,
+        bus,
+        240,            // width (after rotation)
+        135,            // height (after rotation)
+        52,             // column start
+        40,             // row start
+        90,             // 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_GPIO4,     // backlight pin
+        NO_BRIGHTNESS_COMMAND,
+        1.0f,           // brightness (ignored)
+        false,          // auto_brightness
+        false,          // single_byte_bounds
+        false,          // data_as_commands
+        true,           // auto_refresh
+        60,             // native_frames_per_second
+        true,           // backlight_on_high
+        false           // SH1107_addressing
+        );
+
+    common_hal_never_reset_pin(&pin_GPIO4); // backlight pin
+}
+
+void board_init(void) {
+    // Pin 22 has to be pulled high to turn on the LCD
+    const uint PWR_PIN = LCD_POWER;
+    gpio_init(PWR_PIN);
+    gpio_set_dir(PWR_PIN, GPIO_OUT);
+    gpio_put(PWR_PIN, 1);
+    common_hal_never_reset_pin(&pin_GPIO22);
+
+    // Display
+    display_init();
+}
+
+bool board_requests_safe_mode(void) {
+    return false;
+}
+
+void reset_board(void) {
+}
+
+void board_deinit(void) {
+}

ports/raspberrypi/boards/lilygo_t_display_rp2040/mpconfigboard.h

@@ -0,0 +1,2 @@
+#define MICROPY_HW_BOARD_NAME "LILYGO T-DISPLAY"
+#define MICROPY_HW_MCU_NAME "rp2040"

ports/raspberrypi/boards/lilygo_t_display_rp2040/mpconfigboard.mk

@@ -0,0 +1,11 @@
+USB_VID = 0x1209
+USB_PID = 0x2023
+USB_PRODUCT = "T-Display"
+USB_MANUFACTURER = "Lilygo"
+
+CHIP_VARIANT = RP2040
+CHIP_FAMILY = rp2
+
+EXTERNAL_FLASH_DEVICES = "W25Q32JVxQ"
+
+CIRCUITPY__EVE = 1

ports/raspberrypi/boards/lilygo_t_display_rp2040/pico-sdk-configboard.h

@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.

ports/raspberrypi/boards/lilygo_t_display_rp2040/pins.c

@@ -0,0 +1,65 @@
+#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
+
+    { MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_GPIO1) },
+    { MP_ROM_QSTR(MP_QSTR_GP1), MP_ROM_PTR(&pin_GPIO1) },
+
+    { MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_GPIO2) },
+    { MP_ROM_QSTR(MP_QSTR_GP2), MP_ROM_PTR(&pin_GPIO2) },
+
+    { MP_ROM_QSTR(MP_QSTR_BUTTON_L), MP_ROM_PTR(&pin_GPIO6) },
+    { MP_ROM_QSTR(MP_QSTR_GP6), MP_ROM_PTR(&pin_GPIO6) },
+
+    { MP_ROM_QSTR(MP_QSTR_BUTTON_R), MP_ROM_PTR(&pin_GPIO6) },
+    { MP_ROM_QSTR(MP_QSTR_GP7), MP_ROM_PTR(&pin_GPIO7) },
+
+    { MP_ROM_QSTR(MP_QSTR_GP8), MP_ROM_PTR(&pin_GPIO8) },
+    { MP_ROM_QSTR(MP_QSTR_GP9), MP_ROM_PTR(&pin_GPIO9) },
+
+    { MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_GPIO10) },
+    { MP_ROM_QSTR(MP_QSTR_GP10), MP_ROM_PTR(&pin_GPIO10) },
+
+    { MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_GPIO11) },
+    { MP_ROM_QSTR(MP_QSTR_GP11), MP_ROM_PTR(&pin_GPIO11) },
+
+    { MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_GPIO12) },
+    { MP_ROM_QSTR(MP_QSTR_GP12), MP_ROM_PTR(&pin_GPIO12) },
+
+    { MP_ROM_QSTR(MP_QSTR_GP13), MP_ROM_PTR(&pin_GPIO13) },
+
+    { MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_GPIO14) },
+    { MP_ROM_QSTR(MP_QSTR_GP14), MP_ROM_PTR(&pin_GPIO14) },
+
+    { MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_GPIO15) },
+    { MP_ROM_QSTR(MP_QSTR_GP15), MP_ROM_PTR(&pin_GPIO15) },
+
+    { MP_ROM_QSTR(MP_QSTR_GP16), MP_ROM_PTR(&pin_GPIO16) },
+
+    { MP_ROM_QSTR(MP_QSTR_GP18), MP_ROM_PTR(&pin_GPIO18) },
+
+    { MP_ROM_QSTR(MP_QSTR_GP21), MP_ROM_PTR(&pin_GPIO21) },
+
+    { MP_ROM_QSTR(MP_QSTR_TFT_POWER), MP_ROM_PTR(&pin_GPIO22) },
+    { MP_ROM_QSTR(MP_QSTR_GP22), MP_ROM_PTR(&pin_GPIO22) },
+
+    { MP_ROM_QSTR(MP_QSTR_LED), MP_ROM_PTR(&pin_GPIO25) },
+    { MP_ROM_QSTR(MP_QSTR_GP25), MP_ROM_PTR(&pin_GPIO25) },
+
+    // 1.14 inch LCD ST7789
+    { MP_ROM_QSTR(MP_QSTR_LCD_MOSI), MP_ROM_PTR(&pin_GPIO3) },
+    { MP_ROM_QSTR(MP_QSTR_LCD_CLK), MP_ROM_PTR(&pin_GPIO2) },
+    { MP_ROM_QSTR(MP_QSTR_LCD_CS), MP_ROM_PTR(&pin_GPIO5) },
+    { MP_ROM_QSTR(MP_QSTR_LCD_RESET), MP_ROM_PTR(&pin_GPIO0) },
+    { MP_ROM_QSTR(MP_QSTR_LCD_BACKLIGHT), MP_ROM_PTR(&pin_GPIO4) },
+    { MP_ROM_QSTR(MP_QSTR_LCD_DC), MP_ROM_PTR(&pin_GPIO1) },
+    { MP_ROM_QSTR(MP_QSTR_DISPLAY), MP_ROM_PTR(&displays[0].display) },
+
+    { MP_ROM_QSTR(MP_QSTR_VOLTAGE_MONITOR), MP_ROM_PTR(&pin_GPIO29) },
+
+    { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
+    { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&board_spi_obj) },
+};
+MP_DEFINE_CONST_DICT(board_module_globals, board_module_globals_table);

ports/raspberrypi/common-hal/wifi/Radio.c

@@ -48,6 +48,8 @@
 #include "lwip/raw.h"
 #include "lwip_src/ping.h"
 
+#include "shared/netutils/dhcpserver.h"
+
 #define MAC_ADDRESS_LENGTH 6
 
 #define NETIF_STA (&cyw43_state.netif[CYW43_ITF_STA])
@@ -161,7 +163,15 @@ void common_hal_wifi_radio_stop_station(wifi_radio_obj_t *self) {
     // (by tcpip_link_status). However since ap disconnection isn't working
     // either, this is not an issue.
     cyw43_wifi_leave(&cyw43_state, CYW43_ITF_AP);
-
+    const size_t timeout_ms = 500;
+    uint64_t start = port_get_raw_ticks(NULL);
+    uint64_t deadline = start + timeout_ms;
+    while (port_get_raw_ticks(NULL) < deadline && (cyw43_tcpip_link_status(&cyw43_state, CYW43_ITF_STA) != CYW43_LINK_DOWN)) {
+        RUN_BACKGROUND_TASKS;
+        if (mp_hal_is_interrupted()) {
+            break;
+        }
+    }
     bindings_cyw43_wifi_enforce_pm();
 }
 
@@ -359,11 +369,14 @@ void common_hal_wifi_radio_stop_dhcp_client(wifi_radio_obj_t *self) {
 }
 
 void common_hal_wifi_radio_start_dhcp_server(wifi_radio_obj_t *self) {
-    mp_raise_NotImplementedError(NULL);
+    ip4_addr_t ipv4_addr, netmask_addr;
+    ipaddress_ipaddress_to_lwip(common_hal_wifi_radio_get_ipv4_address_ap(self), &ipv4_addr);
+    ipaddress_ipaddress_to_lwip(common_hal_wifi_radio_get_ipv4_subnet_ap(self), &netmask_addr);
+    dhcp_server_init(&cyw43_state.dhcp_server, &ipv4_addr, &netmask_addr);
 }
 
 void common_hal_wifi_radio_stop_dhcp_server(wifi_radio_obj_t *self) {
-    mp_raise_NotImplementedError(NULL);
+    dhcp_server_deinit(&cyw43_state.dhcp_server);
 }
 
 void common_hal_wifi_radio_set_ipv4_address(wifi_radio_obj_t *self, mp_obj_t ipv4, mp_obj_t netmask, mp_obj_t gateway, mp_obj_t ipv4_dns) {
@@ -380,7 +393,15 @@ void common_hal_wifi_radio_set_ipv4_address(wifi_radio_obj_t *self, mp_obj_t ipv
 }
 
 void common_hal_wifi_radio_set_ipv4_address_ap(wifi_radio_obj_t *self, mp_obj_t ipv4, mp_obj_t netmask, mp_obj_t gateway) {
-    mp_raise_NotImplementedError(NULL);
+    common_hal_wifi_radio_stop_dhcp_server(self);
+
+    ip4_addr_t ipv4_addr, netmask_addr, gateway_addr;
+    ipaddress_ipaddress_to_lwip(ipv4, &ipv4_addr);
+    ipaddress_ipaddress_to_lwip(netmask, &netmask_addr);
+    ipaddress_ipaddress_to_lwip(gateway, &gateway_addr);
+    netif_set_addr(NETIF_AP, &ipv4_addr, &netmask_addr, &gateway_addr);
+
+    common_hal_wifi_radio_start_dhcp_server(self);
 }
 
 volatile bool ping_received;

ports/unix/main.c

@@ -716,7 +716,7 @@ MP_NOINLINE int main_(int argc, char **argv) {
 }
 
 #if !MICROPY_VFS
-uint mp_import_stat(const char *path) {
+mp_import_stat_t mp_import_stat(const char *path) {
     struct stat st;
     if (stat(path, &st) == 0) {
         if (S_ISDIR(st.st_mode)) {

py/gc.c

@@ -1013,6 +1013,7 @@ bool gc_never_free(void *ptr) {
     // Pointers are stored in a linked list where each block is BYTES_PER_BLOCK long and the first
     // pointer is the next block of pointers.
     void **current_reference_block = MP_STATE_MEM(permanent_pointers);
+    void **last_reference_block = NULL;
     while (current_reference_block != NULL) {
         for (size_t i = 1; i < BYTES_PER_BLOCK / sizeof(void *); i++) {
             if (current_reference_block[i] == NULL) {
@@ -1020,6 +1021,7 @@ bool gc_never_free(void *ptr) {
                 return true;
             }
         }
+        last_reference_block = current_reference_block; // keep a record of last "proper" reference block
         current_reference_block = current_reference_block[0];
     }
     void **next_block = gc_alloc(BYTES_PER_BLOCK, false, true);
@@ -1029,7 +1031,7 @@ bool gc_never_free(void *ptr) {
     if (MP_STATE_MEM(permanent_pointers) == NULL) {
         MP_STATE_MEM(permanent_pointers) = next_block;
     } else {
-        current_reference_block[0] = next_block;
+        last_reference_block[0] = next_block;
     }
     next_block[1] = ptr;
     return true;

py/objarray.c

@@ -254,12 +254,14 @@ STATIC mp_obj_t memoryview_make_new(const mp_obj_type_t *type_in, size_t n_args,
 STATIC mp_obj_t memoryview_cast(const mp_obj_t self_in, const mp_obj_t typecode_in) {
     mp_obj_array_t *self = MP_OBJ_TO_PTR(self_in);
     const char *typecode = mp_obj_str_get_str(typecode_in);
-    size_t element_size = mp_binary_get_size('@', typecode[0], NULL);
+    size_t new_element_size = mp_binary_get_size('@', typecode[0], NULL);
-    size_t bytelen = self->len * mp_binary_get_size('@', self->typecode & ~MP_OBJ_ARRAY_TYPECODE_FLAG_RW, NULL);
+    size_t old_element_size = mp_binary_get_size('@', self->typecode & ~MP_OBJ_ARRAY_TYPECODE_FLAG_RW, NULL);
-    if (bytelen % element_size != 0) {
+    size_t bytelen = self->len * old_element_size;
+    if (bytelen % new_element_size != 0) {
         mp_raise_TypeError(MP_ERROR_TEXT("memoryview: length is not a multiple of itemsize"));
     }
-    mp_obj_array_t *result = MP_OBJ_TO_PTR(mp_obj_new_memoryview(*typecode, bytelen / element_size, self->items));
+    mp_obj_array_t *result = MP_OBJ_TO_PTR(mp_obj_new_memoryview(*typecode, bytelen / new_element_size, self->items));
+    result->memview_offset = (self->memview_offset * old_element_size) / new_element_size;
 
     // test if the object can be written to
     if (self->typecode & MP_OBJ_ARRAY_TYPECODE_FLAG_RW) {

tests/basics/memoryview_cast.py

@@ -0,0 +1,21 @@
+try:
+    memoryview(b'a').cast
+except:
+    print("SKIP")
+    raise SystemExit
+
+b = bytearray(range(16))
+
+def print_memview(mv):
+    print(", ".join(hex(v) for v in mv))
+
+mv = memoryview(b)
+print_memview(mv)
+print_memview(mv[4:])
+
+words = mv.cast("I")
+print_memview(words)
+print_memview(mv[4:].cast("I"))
+print_memview(words[1:])
+
+print_memview(words.cast("B"))