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CONFIG_BOOT_DELAY¶
Boot delay in milliseconds
Type: int
Help¶
This option delays bootup for the specified amount of milliseconds. This is used to allow serial ports to get ready before starting to print information on them during boot, as some systems might boot to fast for a receiving endpoint to detect the new USB serial bus, enumerate it and get ready to receive before it actually gets data. A similar effect can be achieved by waiting for DCD on the serial port–however, not all serial ports have DCD.
Defaults¶
- 0
Kconfig definition¶
At kernel/Kconfig:322
Included via Kconfig:10 → Kconfig.zephyr:31
Menu path: (top menu) → General Kernel Options → Kernel Debugging and Metrics
config BOOT_DELAY
int
prompt "Boot delay in milliseconds"
default 0
help
This option delays bootup for the specified amount of
milliseconds. This is used to allow serial ports to get ready
before starting to print information on them during boot, as
some systems might boot to fast for a receiving endpoint to
detect the new USB serial bus, enumerate it and get ready to
receive before it actually gets data. A similar effect can be
achieved by waiting for DCD on the serial port--however, not
all serial ports have DCD.
(Definitions include propagated dependencies, including from if’s and menus.)