printf not printing floats under mbed

[smartsystemdesign]

I have created a new VisualGDB project using the Embedded project wizard, MSBuild, mbed, and the LEDBlink sample project.  I added two printf statements to main as shown below.  I am using a Nucleo-L432KC board from ST.  The problem is that the second printf statement doesn’t print anything.  The first printf works fine and prints 1.  Please help.

 

int main()
{
for (;;)
{
printf(“%d\t”, 1);
printf(“%f\r\n”, 1.5f);

g_LED = 1;
wait_ms(500);
g_LED = 0;
wait_ms(500);
}
}

[jmkresse]

I would suggest trying

printf(“%f\r\n”, 1.5);

to see if that works for you.

[support]

Hi,

This may happen because the default implementation of printf() in the newlib-nano library does not support floating-point numbers. Please try explicitly switching to the “newlib-nano with floating-point support” via VisualGDB Project Properties.

[Author]

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