circuitpython/ports/atmel-samd/boards/itsybitsy_m0_express/mpconfigboard.h
Scott Shawcroft e7fc0b6aa7 Use DMA for long SPI transactions including those to the SPI Flash.
QSPI is not currently working so its commented out.

This is progress on #652.
2018-03-09 12:45:46 -08:00

49 lines
1.8 KiB
C

#define MICROPY_HW_BOARD_NAME "Adafruit Itsy Bitsy M0 Express"
#define MICROPY_HW_MCU_NAME "samd21g18"
#define CIRCUITPY_BITBANG_APA102
#define MICROPY_HW_APA102_MOSI (&pin_PA01)
#define MICROPY_HW_APA102_SCK (&pin_PA00)
// Saleae 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_PB22
#define SPI_FLASH_MISO_PIN PIN_PB03
#define SPI_FLASH_SCK_PIN PIN_PB23
#define SPI_FLASH_CS_PIN PIN_PA27
#define SPI_FLASH_MOSI_PIN_FUNCTION PINMUX_PB22D_SERCOM5_PAD2
#define SPI_FLASH_MISO_PIN_FUNCTION PINMUX_PB03D_SERCOM5_PAD1
#define SPI_FLASH_SCK_PIN_FUNCTION PINMUX_PB23D_SERCOM5_PAD3
#define SPI_FLASH_SERCOM SERCOM5
#define SPI_FLASH_SERCOM_INDEX 5
#define SPI_FLASH_MOSI_PAD 2
#define SPI_FLASH_MISO_PAD 1
#define SPI_FLASH_SCK_PAD 3
// <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 1
#define SPI_FLASH_DIPO 1 // same as MISO pad
// These are pins not to reset.
#define MICROPY_PORT_A (PORT_PA00 | PORT_PA01 | PORT_PA27 | PORT_PA24 | PORT_PA25)
#define MICROPY_PORT_B (PORT_PB22 | PORT_PB23 | PORT_PB03 )
#define MICROPY_PORT_C (0)
// 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 CIRCUITPY_INTERNAL_NVM_SIZE 0
#define BOARD_FLASH_SIZE (0x00040000 - 0x2000 - CIRCUITPY_INTERNAL_NVM_SIZE)
#include "external_flash/devices.h"
#define EXTERNAL_FLASH_DEVICE_COUNT 2
#define EXTERNAL_FLASH_DEVICES W25Q16FW, \
GD25Q16C
#include "external_flash/external_flash.h"