zephyr/prj.conf: Use UART for console as default, not CONSOLE_SUBSYS.

dpgeorge · dpgeorge · commit 019656bf928a · 2025-07-03T11:17:59.000+10:00
Most boards enable the UART console because it's needed for USB (where USB CDC creates a virtual UART), and for ctrl-C to work. The `prj_minimal.conf` settings still use CONSOLE_SUBSYS. Fixes issue #17608. Signed-off-by: Damien George <damien@micropython.org>
diff --git a/ports/zephyr/boards/bbc_microbit_v2.conf b/ports/zephyr/boards/bbc_microbit_v2.conf
@@ -1,4 +1,3 @@
-CONFIG_CONSOLE_SUBSYS=n
 CONFIG_NETWORKING=n
 CONFIG_BT=y
 CONFIG_BT_DEVICE_NAME_DYNAMIC=y
diff --git a/ports/zephyr/boards/nucleo_h743zi.conf b/ports/zephyr/boards/nucleo_h743zi.conf
@@ -1,6 +1,3 @@
-# disable console subsys to get REPL working
-CONFIG_CONSOLE_SUBSYS=n
-
 # flash config
 CONFIG_FLASH=y
 CONFIG_FLASH_MAP=y
diff --git a/ports/zephyr/boards/nucleo_wb55rg.conf b/ports/zephyr/boards/nucleo_wb55rg.conf
@@ -1,4 +1,3 @@
-CONFIG_CONSOLE_SUBSYS=n
 CONFIG_NETWORKING=n
 CONFIG_BT=y
 CONFIG_BT_DEVICE_NAME_DYNAMIC=y
diff --git a/ports/zephyr/boards/qemu_cortex_m3.conf b/ports/zephyr/boards/qemu_cortex_m3.conf
@@ -1,7 +1,3 @@
-# Interrupt-driven UART console has emulation artifacts under QEMU,
-# disable it
-CONFIG_CONSOLE_SUBSYS=n
-
 # This QEMU target only has 256k ROM and 64k RAM, so disable networking
 CONFIG_NETWORKING=n
 
diff --git a/ports/zephyr/boards/qemu_x86.conf b/ports/zephyr/boards/qemu_x86.conf
@@ -1,7 +1,3 @@
-# Interrupt-driven UART console has emulation artifacts under QEMU,
-# disable it
-CONFIG_CONSOLE_SUBSYS=n
-
 # Networking drivers
 # SLIP driver for QEMU
 CONFIG_NET_SLIP_TAP=y
diff --git a/ports/zephyr/prj.conf b/ports/zephyr/prj.conf
@@ -6,11 +6,6 @@ CONFIG_STDOUT_CONSOLE=y
 CONFIG_CONSOLE_HANDLER=y
 CONFIG_UART_CONSOLE_DEBUG_SERVER_HOOKS=y
 
-CONFIG_CONSOLE_SUBSYS=y
-CONFIG_CONSOLE_GETCHAR=y
-CONFIG_CONSOLE_GETCHAR_BUFSIZE=258
-CONFIG_CONSOLE_PUTCHAR_BUFSIZE=128
-
 CONFIG_NEWLIB_LIBC=y
 CONFIG_FPU=y
 CONFIG_MAIN_STACK_SIZE=4736
diff --git a/ports/zephyr/prj_minimal.conf b/ports/zephyr/prj_minimal.conf
@@ -8,8 +8,5 @@ CONFIG_CONSOLE_SUBSYS=y
 CONFIG_CONSOLE_GETCHAR=y
 CONFIG_CONSOLE_GETCHAR_BUFSIZE=258
 CONFIG_CONSOLE_PUTCHAR_BUFSIZE=32
-# TODO: Disable once https://github.com/zephyrproject-rtos/zephyr/pull/13731 is merged
-#CONFIG_CONSOLE=n
-#CONFIG_UART_CONSOLE=n
 
 CONFIG_MICROPY_HEAP_SIZE=16384

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,3 @@`
`1`		`-CONFIG_CONSOLE_SUBSYS=n`
`2`	`1`	`CONFIG_NETWORKING=n`
`3`	`2`	`CONFIG_BT=y`
`4`	`3`	`CONFIG_BT_DEVICE_NAME_DYNAMIC=y`