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board/stm32f401rc-rs485: Add USB console support

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This commit adds support to use NSH over USB without
connecting an external USB/Serial adapter.

Signed-off-by: Rodrigo Sim <rcsim10@gmail.com>
This commit is contained in:
Rodrigo Sim
2024-02-17 10:33:33 -03:00
committed by Xiang Xiao
parent c1e81c348d
commit b871783889
5 changed files with 183 additions and 0 deletions
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Documentation/platforms/arm/stm32f4/boards/stm32f401rc-rs485/index.rst
+21
View File
@@ -224,6 +224,27 @@ nsh
Configures the NuttShell (nsh) located at apps/examples/nsh. This
configuration enables a serial console on USART6.
usbnsh
------
Configures the NuttShell (nsh) located at apps/examples/nsh. This
configuration enables a serial console over USB.
After flasing and reboot your board you should see in your dmesg logs::
[ 2638.948089] usb 1-1.4: new full-speed USB device number 16 using xhci_hcd
[ 2639.054432] usb 1-1.4: New USB device found, idVendor=0525, idProduct=a4a7, bcdDevice= 1.01
[ 2639.054437] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2639.054438] usb 1-1.4: Product: CDC/ACM Serial
[ 2639.054440] usb 1-1.4: Manufacturer: NuttX
[ 2639.054441] usb 1-1.4: SerialNumber: 0
[ 2639.074861] cdc_acm 1-1.4:1.0: ttyACM0: USB ACM device
[ 2639.074886] usbcore: registered new interface driver cdc_acm
[ 2639.074887] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
You may need to press **ENTER** 3 times before the NSH show up.
sdcard
------