Difference between revisions of "Kconfig"
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Revision as of 18:05, 8 December 2022
Zephyr RTOS building blocks :: Device Tree Source :: Kconfig :: cmake :: `west` manifest files
This Neela Nurseries page dedicated to notes on Kconfig configuration system, and language. Agood starting point is at Zephyr's latest documentation as of Zephyr 3.2.99. The following link is itself one of five Zephyr docs pages linked from a parent doc page:
Need to revisit this link to identify its specific topics . . .
Some more useful articles on Kconfig, hosted at Nordic Semi:
Above Kconfig articles linked to from https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/build/index.html#kconfig.
^ Kconfig Interactive Use To Enable IIS2DH
Following messages do not show the interactive, ncurses based Kconfig configuration program. But these do show where Kconfig stores a modified configuration file in a given project:
ted@localhost:~/projects/zephyr-based/z4-sandbox-kionix-work/kionix-driver-demo$ west build -t menuconfig -- west build: running target menuconfig [0/1] cd /home/ted/projects/zephyr-based/z4-sandbox-kionix-work/kionix-dri...ed/projects/zephyr-based/z4-sandbox-kionix-work/kionix-driver-demo/Kconfig Loaded configuration '/home/ted/projects/zephyr-based/z4-sandbox-kionix-work/kionix-driver-demo/build/zephyr/.config' Configuration saved to '/home/ted/projects/zephyr-based/z4-sandbox-kionix-work/kionix-driver-demo/build/zephyr/.config' ted@localhost:~/projects/zephyr-based/z4-sandbox-kionix-work/kionix-driver-demo$
^ Kconfig NXP dual core setting
ted@localhost1:~/projects-sandbox/workspace-out-of-tree/zephyr$ grep -nr SECOND_CORE_BOOT_ADDRESS_MCUX ./*
./boards/arm/lpcxpresso55s69/CMakeLists.txt:25: -offset ${CONFIG_SECOND_CORE_BOOT_ADDRESS_MCUX}
./soc/arm/nxp_lpc/lpc54xxx/Kconfig.soc:54:config SECOND_CORE_BOOT_ADDRESS_MCUX
./soc/arm/nxp_lpc/lpc54xxx/soc.c:134:#define CORE_M0_BOOT_ADDRESS ((void *)CONFIG_SECOND_CORE_BOOT_ADDRESS_MCUX)
./soc/arm/nxp_lpc/lpc55xxx/Kconfig.soc:135:config SECOND_CORE_BOOT_ADDRESS_MCUX
ted@localhost1:~/projects-sandbox/workspace-out-of-tree/zephyr$
From file `zephyr/soc/arm/nxp_lpc/lpc55xxx/Kconfig.soc`:
118 119 config SECOND_CORE_MCUX 120 bool "LPC55xxx's second core" 121 depends on HAS_MCUX 122 help 123 Driver for second core startup 124 125 config SECOND_IMAGE_MCUX 126 depends on SECOND_CORE_MCUX 127 string "Binary image of second core's code" 128 help 129 This points to the image file for the the binary code that will be 130 used by the second core. 131 132 # Workaround for not being able to have commas in macro arguments 133 DT_CHOSEN_Z_CODE_CPU1_PARTITION := zephyr,code-cpu1-partition 134 135 config SECOND_CORE_BOOT_ADDRESS_MCUX 136 depends on SECOND_CORE_MCUX 137 hex "Address the second core will boot at" 138 default $(dt_chosen_reg_addr_hex,$(DT_CHOSEN_Z_CODE_CPU1_PARTITION)) 139 help 140 This is the address the second core will boot from. 141 142 endif # SOC_SERIES_LPC55XXX
