espress0 board definition

3-42-mpconfigboard.h

#define MICROPY_HW_BOARD_NAME "Espress0"
#define MICROPY_HW_MCU_NAME "samd21e18"

// Rev B - Black
#define MICROPY_HW_APA102_MOSI   (&pin_PA00)
#define MICROPY_HW_APA102_SCK    (&pin_PA01)

// Salae reads 12mhz which is the limit even though we set it to the
// safer 8mhz.
#define SPI_FLASH_BAUDRATE (8000000)

#define SPI_FLASH_MOSI_PIN          PIN_PA16
#define SPI_FLASH_MISO_PIN          PIN_PA19
#define SPI_FLASH_SCK_PIN           PIN_PA17
#define SPI_FLASH_CS_PIN            PIN_PA11
#define SPI_FLASH_MOSI_PIN_FUNCTION PINMUX_PA16D_SERCOM3_PAD0
#define SPI_FLASH_MISO_PIN_FUNCTION PINMUX_PA19D_SERCOM3_PAD3
#define SPI_FLASH_SCK_PIN_FUNCTION  PINMUX_PA17D_SERCOM3_PAD1
#define SPI_FLASH_SERCOM            SERCOM3
#define SPI_FLASH_SERCOM_INDEX      3
#define SPI_FLASH_MOSI_PAD          0
#define SPI_FLASH_MISO_PAD          3
#define SPI_FLASH_SCK_PAD           1
// <o> Transmit Data Pinout
// <0x0=>PAD[0,1]_DO_SCK
// <0x1=>PAD[2,3]_DO_SCK
// <0x2=>PAD[3,1]_DO_SCK
// <0x3=>PAD[0,3]_DO_SCK
#define SPI_FLASH_DOPO              0
#define SPI_FLASH_DIPO              3   // same as MISO pad

#define SPI_FLASH_CS PIN_PA11

// These are pins not to reset.
#define MICROPY_PORT_A        (PORT_PA00 | PORT_PA01 | PORT_PA11 | PORT_PA16 |\
                               PORT_PA17 | PORT_PA18 | PORT_PA19 | PORT_PA24 |\
                               PORT_PA25)
#define MICROPY_PORT_B        (0)
#define MICROPY_PORT_C        (0)

#define CALIBRATE_CRYSTALLESS 1

#include "external_flash/external_flash.h"

// If you change this, then make sure to update the linker scripts as well to
// make sure you don't overwrite code.
#define CIRCUITPY_INTERNAL_NVM_SIZE 256

#define BOARD_FLASH_SIZE (0x00040000 - 0x2000 - CIRCUITPY_INTERNAL_NVM_SIZE)

#include "external_flash/devices.h"

#define EXTERNAL_FLASH_DEVICE_COUNT 3
#define EXTERNAL_FLASH_DEVICES W25Q32BV, \
                               W25Q16FW, \
                               W25Q16JV


#include "external_flash/external_flash.h"

#define DEFAULT_I2C_BUS_SCL (&pin_PA09)
#define DEFAULT_I2C_BUS_SDA (&pin_PA08)

#define DEFAULT_SPI_BUS_SCK (&pin_PA07)
#define DEFAULT_SPI_BUS_MOSI (&pin_PA06)
#define DEFAULT_SPI_BUS_MISO (&pin_PA09)

#define DEFAULT_UART_BUS_RX (&pin_PA07)
#define DEFAULT_UART_BUS_TX (&pin_PA06)

// USB is always used internally so skip the pin objects for it.
#define IGNORE_PIN_PA24     1
#define IGNORE_PIN_PA25     1

3-42-mpconfigboard.mk

LD_FILE = boards/samd21x18-bootloader-external-flash-crystalless.ld
USB_VID = 0x1209
USB_PID = 0xCEDE
USB_PRODUCT="Espress0"
USB_MANUFACTURER="Timothy Garcia"

SPI_FLASH_FILESYSTEM = 1
LONGINT_IMPL = MPZ

CHIP_VARIANT = SAMD21E18A
CHIP_FAMILY = samd21

43-mpconfigboard.h

#define MICROPY_HW_BOARD_NAME "Espress0"
#define MICROPY_HW_MCU_NAME "samd21e18"

// Rev B - Black
#define MICROPY_HW_APA102_MOSI   (&pin_PA00)
#define MICROPY_HW_APA102_SCK    (&pin_PA01)

// Salae reads 12mhz which is the limit even though we set it to the
// safer 8mhz.
#define SPI_FLASH_BAUDRATE (8000000)

#define SPI_FLASH_MOSI_PIN          &pin_PA16
#define SPI_FLASH_MISO_PIN          &pin_PA19
#define SPI_FLASH_SCK_PIN           &pin_PA17
#define SPI_FLASH_CS_PIN            &pin_PA11

// These are pins not to reset.
#define MICROPY_PORT_A        (PORT_PA00 | PORT_PA01 | PORT_PA11 | PORT_PA16 |\
                               PORT_PA17 | PORT_PA18 | PORT_PA19 | PORT_PA24 |\
                               PORT_PA25)
#define MICROPY_PORT_B        (0)
#define MICROPY_PORT_C        (0)

#define CALIBRATE_CRYSTALLESS 1


// If you change this, then make sure to update the linker scripts as well to
// make sure you don't overwrite code.
#define CIRCUITPY_INTERNAL_NVM_SIZE 256

#define BOARD_FLASH_SIZE (0x00040000 - 0x2000 - CIRCUITPY_INTERNAL_NVM_SIZE)


#define DEFAULT_I2C_BUS_SCL (&pin_PA09)
#define DEFAULT_I2C_BUS_SDA (&pin_PA08)

#define DEFAULT_SPI_BUS_SCK (&pin_PA07)
#define DEFAULT_SPI_BUS_MOSI (&pin_PA06)
#define DEFAULT_SPI_BUS_MISO (&pin_PA09)

#define DEFAULT_UART_BUS_RX (&pin_PA07)
#define DEFAULT_UART_BUS_TX (&pin_PA06)

// USB is always used internally so skip the pin objects for it.
#define IGNORE_PIN_PA24     1
#define IGNORE_PIN_PA25     1

43-mpconfigboard.mk

LD_FILE = boards/samd21x18-bootloader-external-flash-crystalless.ld
USB_VID = 0x1209
USB_PID = 0xCEDE
USB_PRODUCT="Espress0"
USB_MANUFACTURER="Timothy Garcia"

SPI_FLASH_FILESYSTEM = 1
EXTERNAL_FLASH_DEVICE_COUNT = 3
EXTERNAL_FLASH_DEVICES = "W25Q32BV, W25Q16FW, W25Q16JV_IQ"
LONGINT_IMPL = MPZ

CHIP_VARIANT = SAMD21E18A
CHIP_FAMILY = samd21