diff options
| -rw-r--r-- | ports/zephyr/boards/rpi_pico.conf | 19 | ||||
| -rw-r--r-- | ports/zephyr/boards/rpi_pico.overlay | 48 |
2 files changed, 67 insertions, 0 deletions
diff --git a/ports/zephyr/boards/rpi_pico.conf b/ports/zephyr/boards/rpi_pico.conf new file mode 100644 index 000000000..6b31bc9f9 --- /dev/null +++ b/ports/zephyr/boards/rpi_pico.conf @@ -0,0 +1,19 @@ +# Disable floating point hardware. +CONFIG_FPU=n + +# Configure serial console over USB CDC ACM. +CONFIG_USB_DEVICE_STACK_NEXT=y +CONFIG_USBD_CDC_ACM_CLASS=y +CONFIG_UART_LINE_CTRL=y + +# Disable networking. +CONFIG_NETWORKING=n + +# Hardware features. +CONFIG_FLASH=y +CONFIG_FLASH_MAP=y +CONFIG_I2C=y +CONFIG_SPI=y + +# MicroPython config. +CONFIG_MICROPY_HEAP_SIZE=196608 diff --git a/ports/zephyr/boards/rpi_pico.overlay b/ports/zephyr/boards/rpi_pico.overlay new file mode 100644 index 000000000..d63ed73bd --- /dev/null +++ b/ports/zephyr/boards/rpi_pico.overlay @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2025 Damien P. George + * + * SPDX-License-Identifier: Apache-2.0 + */ + +/ { + chosen { + /* Use USB CDC ACM as the console. */ + zephyr,console = &cdc_acm_uart0; + }; +}; + +/* Delete defined partitions and make a layout matching the rp2 port RPI_PICO configuration. */ +/delete-node/ &code_partition; +&flash0 { + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + /* Code slot: 640 KiB - 0x100 placed after second-stage bootloader. */ + code_partition: partition@100 { + label = "code-partition"; + reg = <0x00000100 (DT_SIZE_K(640) - 0x100)>; + read-only; + }; + + /* Storage slot: 1408 KiB placed after code_partition. */ + storage_partition: partition@a0000 { + label = "storage"; + reg = <0x000a0000 DT_SIZE_K(1408)>; + }; + }; +}; + +&zephyr_udc0 { + cdc_acm_uart0: cdc_acm_uart0 { + compatible = "zephyr,cdc-acm-uart"; + }; +}; + +&i2c1 { + clock-frequency = <I2C_BITRATE_STANDARD>; + status = "okay"; + pinctrl-0 = <&i2c1_default>; + pinctrl-names = "default"; +}; |