Inaccurate wait() on LPC1768

[sstelian]

I'm using mbed-cli with arm-none-eabi-g++ version 7.1.0 on Fedora 28. I tested the project setup on a LPC1768 and I noticed the blink code blinks about 10 times slower when compiled with mbed-cli than compiled with the web-based mbed compiler. The correct timing is the one in the online compiler, of course. Here is the code :

#include "mbed.h"

DigitalOut dbgLed(LED4);

int main()
{
  dbgLed = 1;
  while(1)
  {
    wait(0.1);
    dbgLed = !dbgLed;
  }
}

[ciarmcom]

ARM Internal Ref: MBOTRIAGE-1467

[cmonr]

Hi @sstelian. This is actualyl a duplicate of ARMmbed/mbed-os#7381, and will be closing this. If you have more information to provide, please post it in that issue.

Also, for reference, we don't currently support GCC 7 yet.