More questions then answers;) What do you mean by "BLE dongle"? What is running on "NRF51822 device" which you want to upgrade? In general: if your target supports OTA DFU then it doeson't matter which devices is doing it. However depending on what OTA DFU mechanism your target supports you need to design FW or upper layer APP on that magic devices which conducts the upgrade.
More questions then answers;) What do you mean by "BLE dongle"? What is running on "NRF51822 device" which you want to upgrade? In general: if your target supports OTA DFU then it doeson't matter which devices is doing it. However depending on what OTA DFU mechanism your target supports you need to design FW or upper layer APP on that magic devices which conducts the upgrade.
