https://devzone.nordicsemi.com/f/nordic-q-a/14122/high-adc-sampling-nrf51-development-kitHi, I have an NRF 51 DK and vs. 11 of the SDK and just recently learned how to write some basic code and now I am trying to learn how to use ADC on NRF51. I am trying to sample signals at a frequency of at least 1kHz (1ms). I am trying to use the NRF_DRV_ADC_DEFAULT_CONFIGen-USTelligent Community 13Fri, 27 May 2016 17:06:22 GMThttps://devzone.nordicsemi.com/thread/53968?ContentTypeID=1Fri, 27 May 2016 17:06:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:75bf9b13-49a0-41d1-b752-26ac60c388a4Sri_guy<p>Awesome!, I didn&#39;t realize you had to go into the header file itself and change the ADC_ENABLED 0 to ADC_ENABLED 1.</p> <p>Thanks</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/53967?ContentTypeID=1Fri, 27 May 2016 09:28:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9034a44d-189a-4253-beb7-4da1ccd02dacOle Bauck<p>Hi,</p> <p><code>ADC_CONFIG_IRQ_PRIORTY</code> is defined in <code>nrf_drv_config.h</code>, which is normally placed under <code>your_project\config</code>. You can just copy the one from the ADC example. If <code>ADC_ENABLE</code> is defined as 1, <code>ADC_CONFIG_IRQ_PRIORITY</code> will be defined.</p> <p>About the -&gt; symbol, it is the normal syntax for accessing variables in a structure via a pointer, see for example <a href="http://www.programiz.com/c-programming/c-structures-pointers">this</a> tutorial on structures and pointers.</p> <p>Ole</p><div style="clear:both;"></div>