LOG_INF doesn't print float numbers on RTT logs

[Bhumika]

I am using nRF_Connect_sdk and RTT logs.

In RTT logs, float numbers are not getting displayed.

I am getting just 0.00 for floating numbers.

Can you help me with how to display floating numbers on RTT logs?

[Albrecht Markus Schellenberger]

Hello Bhumika,

I am getting just 0.00 for floating numbers.

I’m not sure if I can reproduce this.

Could you provide me with a small sample code and RTT log?

Thanks & regards,

Markus

[Bhumika]

hi,

Below is the code snippet:

 #define float_num 10.234
 
 /* Print the AIN0 values */
    int ret;
    float adc_voltage = 0;
    ret = adc_read(adc_battery_voltage, &sequence);
    LOG_INF("ADC read err: %d\n", ret);
    adc_voltage = (float)(((float)m_sample_buffer[i] / 1023.0f) * 3600.0f);
    LOG_INF("ADC raw value: %d\n", m_sample_buffer[i]);
    LOG_INF("Measured voltage: %d mV\n", (int)adc_voltage);
    LOG_INF("Float Num: %0.3f \n", float_num);
    LOG_INF("Measured voltage: %0.2f mV\n", adc_voltage);

and here is RTT log:

So as you can see, when I print the value in integer format, it shows in log, else it displays 0.00 on RTT logs.