Hi Nordic's community,
I have a "stupid" question; i search a programmer for programming a nrf51822 module, and i see everywhere : " flash SD + BL + DFU"... i know Sd =softdevice, BL= bootloader and DFU is for device firmware upgrade but i don't understand if this is my firmware or something else ?
I don't understand what DFU really mean ? Sorry for my "noob" question and thanks for your answer , Yacire.
