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5 years, 5 months ago.

mbed-os-example-blinky not working

Hi,

I compiled the mbed-os-example-blinky example using the offline CLI with mbed compile -t GCC_ARM -m RBLAB_BLENANO2. The compilation and build process ran without issues, but when i copy the hex file to the board via DAPLink, the LED doesn't blink. While trying to solve the issue I modified the example to write messages through the serial port, like this:

Modified blinky

#include "mbed.h"

DigitalOut led1(LED1);
Serial usb(USBTX, USBRX);

// main() runs in its own thread in the OS
int main() {
    while (true) {
        led1 = !led1;
	usb.printf("Blinking!");
        wait(10);
    }
}

To my surprise i get the the "Blinking!" message every 10 secs, the led though won't blink.

Question relating to:

Last updated: 08 Apr 2019

1 Answer

Station Meteo Laos
4 years, 11 months ago.

Hi,

I have exactly the same problem with a nucleo L432KC. My drivers are up to date an so far I didn't find any explanation. Still trying to find a solution though.