Board specific configuration for the Seeed Studio XIAO nRF52840. More...

Detailed Description

Board specific configuration for the Seeed Studio XIAO nRF52840.

Author: Mikolai Gütschow mikol.nosp@m.ai.g.nosp@m.uetsc.nosp@m.how@.nosp@m.tu-dr.nosp@m.esde.nosp@m.n.de

Definition in file board.h.

#include "cpu.h"
#include "board_common.h"
#include "periph/gpio.h"

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LED pin configuration
#define	LED0_PIN GPIO_PIN(0, 26)

#define	LED1_PIN GPIO_PIN(0, 30)

#define	LED2_PIN GPIO_PIN(0, 6)

#define	LED_PORT (NRF_P0)

#define	LED0_MASK (1 << 26)

#define	LED1_MASK (1 << 30)

#define	LED2_MASK (1 << 6)

#define	LED_MASK (LED0_MASK \| LED1_MASK \| LED2_MASK)

#define	LED0_ON (LED_PORT->OUTCLR = LED0_MASK)

#define	LED0_OFF (LED_PORT->OUTSET = LED0_MASK)

#define	LED0_TOGGLE (LED_PORT->OUT ^= LED0_MASK)

#define	LED1_ON (LED_PORT->OUTCLR = LED1_MASK)

#define	LED1_OFF (LED_PORT->OUTSET = LED1_MASK)

#define	LED1_TOGGLE (LED_PORT->OUT ^= LED1_MASK)

#define	LED2_ON (LED_PORT->OUTCLR = LED2_MASK)

#define	LED2_OFF (LED_PORT->OUTSET = LED2_MASK)

#define	LED2_TOGGLE (LED_PORT->OUT ^= LED2_MASK)

SPI NOR flash hardware configuration
A 2MB P25Q16H flash is present on the board. See also https://files.seeedstudio.com/wiki/github_weiruanexample/Flash_P25Q16H-UXH-IR_Datasheet.pdf
#define	XIAO_NRF52840_NOR_PAGE_SIZE (256)

#define	XIAO_NRF52840_NOR_PAGES_PER_SECTOR (16)

#define	XIAO_NRF52840_NOR_SECTOR_COUNT (512)

#define	XIAO_NRF52840_NOR_FLAGS (SPI_NOR_F_SECT_4K \| SPI_NOR_F_SECT_32K \| SPI_NOR_F_SECT_64K)

#define	XIAO_NRF52840_NOR_SPI_DEV SPI_DEV(1)

#define	XIAO_NRF52840_NOR_SPI_CLK SPI_CLK_10MHZ

#define	XIAO_NRF52840_NOR_SPI_CS GPIO_PIN(0, 25)

#define	XIAO_NRF52840_NOR_SPI_WP GPIO_PIN(0, 22)

#define	XIAO_NRF52840_NOR_SPI_HOLD GPIO_PIN(0, 23)

#define	XIAO_NRF52840_NOR_SPI_MODE SPI_MODE_0

ztimer configuration values
#define	CONFIG_ZTIMER_USEC_ADJUST_SET 7

#define	CONFIG_ZTIMER_USEC_ADJUST_SLEEP 22

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