# # For a description of the syntax of this configuration file, # see the file kconfig-language.txt in the NuttX tools repository. # if ARCH_BOARD_METRO_M4 choice prompt "Execution memory" default METRO_M4_RUNFROMFLASH config METRO_M4_RUNFROMFLASH bool "Run from FLASH" select BOOT_RUNFROMFLASH ---help--- This is the normal configuration for building METRO M4 code. config METRO_M4_RUNFROMSRAM bool "Run from SRAM" select BOOT_RUNFROMISRAM ---help--- During early bring-up, it is safer to execute entirely from SRAM until you are confident in the initialization logic. Then you can safely switch to FLASH. REVISIT: This auto-selects CONFIG_BOOT_RUNFROMISRAM but I have found, with some difficulty, that that choice still defaults to CONFIG_BOOT_RUNFROMFLASH, causing link-time failures when running from SRAM. endchoice # Execution memory config METRO_M4_32KHZXTAL bool "32.768 KHz XTAL" default n ---help--- According to the schematic, a 32.768 KHz crystal is installed on board. However, I have been unable to use this crystal and thought perhaps it is missing or defective on my board (there is a metal package that could be a crystal on board, but I am not certain). Another, more likely option is that there is a coding error on my part that prevents the 32.768 KHz crystal from usable(?) The configuration defaults to using the always-on OSCULP32 as the slow clock source. This option will select instead XOSC32 as the slow clock source. config METRO_M4_AT24_BLOCKMOUNT bool "AT24 Serial EEPROM auto-mount" default n depends on MTD_AT24XX ---help--- Automatically initialize the AT24 I2C EEPROM driver when NSH starts. choice prompt "AT24 serial EPPROM configuration" default METRO_M4_AT24_FTL depends on METRO_M4_AT24_BLOCKMOUNT config METRO_M4_AT24_FTL bool "Create AT24 block driver" ---help--- Create the MTD driver for the AT24 and "wrap" the AT24 as a standard block driver that could then, for example, be mounted using FAT or any other file system. Any file system may be used, but there will be no wear-leveling. config METRO_M4_AT24_NXFFS bool "Create AT24 NXFFS file system" depends on FS_NXFFS ---help--- Create the MTD driver for the AT24 and mount the AT24 device as a wear-leveling, NuttX FLASH file system (NXFFS). The downside of NXFFS is that it can be very slow. endchoice # AT24 serial EPPROM configuration if FS_AUTOMOUNTER config METRO_M4_USB_AUTOMOUNT bool "USB automounter" default n if METRO_M4_USB_AUTOMOUNT config METRO_M4_USB_AUTOMOUNT_FSTYPE string "USB file system type" default "vfat" config METRO_M4_USB_AUTOMOUNT_BLKDEV string "USB block device" default "/dev/sda" config METRO_M4_USB_AUTOMOUNT_MOUNTPOINT string "USB mount point" default "/mnt/usb" config METRO_M4_USB_AUTOMOUNT_DDELAY int "USB debounce delay (milliseconds)" default 1000 config METRO_M4_USB_AUTOMOUNT_UDELAY int "USB unmount retry delay (milliseconds)" default 2000 endif # METRO_M4_USB_AUTOMOUNT endif # FS_AUTOMOUNTER endif # ARCH_BOARD_METRO_M4