Nucleo F411RE and serial

[Kenjutsu]

Hello everyone

I dusted off my Nucleo F411RE board today to get it working again with STM32 Core. I can upload via the onboard ST-Link (after the firmware update) and Mass Storage. My question is where does Serial.print output go? There is a serial port (/dev/cu.XXXX) but no output appears there.

What am I missing?

[fpiSTM]

Hi kenjutsu

I don't remember which dev format it is on Mac, anyway it is simple to find which one it is.
List all /dev/* with the board disconnected then with the board connected and check the diff.
The port should also be listed in Arduino, if not there is a issue.
Which Arduino IDE version you used ? Did you select the right baudrate?

[Kenjutsu]

Thank you for the reply,

Under /dev are two entries related to the F411RE:

• /dev/tty.usbmodemFA13123

• /dev/cu.usbmodemFA13123

Under Arduino -> Tools I have the following settings:

Arduino_Tools_Settings.jpg (48.88 KiB) Viewed 10457 times

/dev/cu.usbmodemFA13123 is automatically selected and is also the only option available. The same happens under CoolTerm.

I create a new Blink example with the following in setup():

Code: Select all

Serial.begin(115200);

and in loop():

Code: Select all

Serial.println("Toggle LED");

I upload to the board and start the Serial Monitor and nothing is displayed. The same for CoolTerm. The connection to the serial port is fine. The ST-Link V2.1 is at firmware V2J37M26

[fpiSTM]

The Nucleo F411RE has no real USB connector.
The USB connector available is for the STLink and the VCP com port created forward the data of a real USART.

So simply set USB support to None and then this should be ok.

[Kenjutsu]

So simply set USB support to None and then this should be ok.

Thank you, that did the trick

[Sleipnir164]

Hello,

I've got the same problem about not seeing anything in the serial com port.
Setting USB support to None didn't help me.
I'm using a stm32 nucleo f411re and the latest version of ardiuno IDE on windows.
Anyone willing to help ?