How to handle the DFU in 51822 SDK

Question

Hi, 
 I want to know how to do the OTA,so I refer to the device_firmware_updates project in SDK.Now I can use the command
 
 line to program the bootloader.hex to 51822(The chip has no application).Then I refer to ble_dfu_send_hex project and I have downloaded the setup as "readme" say.But my computer cann't support .Net Framework 4.5 and IntelHex v1.5 cann't be installed sucessfully(see the attachment).I donn't know why,could u give me some advice?The systerm is WIN XP 32.Could I do the DFU on my computer? 
 Besides,I have read the "Chm SDK documentation",but I still don't know how to handle the DFU in SDK. Are there any detailed document about how to handle the DFU in SDK? Thanks.

Look forward to your reply.Thank you very much.
 
 Best regards,
Alice 
 intelhex-1.5.JPG

Petter Myhre · Accepted Answer

As Morten said, the zip should be used. Unzip to e.g. C:\ 
 Open cmd.exe as administrator, navigate to the folder where you unzipped IntelHex(C:\intelhex-1.5), use the following command to install IntelHex: 
 ipy setup.py install 
 If ipy is not a recognized command, add a variable named PATH with value C:\Program Files (x86)\IronPython 2.7\ to the Environment Variables. 
 We are working on improving the SDK documentation, but I will try to explain how to apply DFU OTA(BLE). 
 
 
 Open nRFgo Studio, erase the flash and program the SoftDevice. 
 
 
 Open the bootloader project in C:\Keil\ARM\Device\Nordic
rf51822\Board
rf6310\device_firmware_updates\bootloader using Keil, and load it using nrfjprog.exe(see SDK, DFU Flashing). 
 
 
 Open Master Control Panel, see that your device is advertising(DfuTarg), and remember its 12 byte device address. 
 
 
 Close Master Control Panel, the dongle needs to be available while updating. 
 
 
 Open the ble_app_hrs project, compile, and copy ble_app_hrs.hex found in C:\Keil\ARM\Device\Nordic
rf51822\Board
rf6310\ble\ble_app_hrs\arm_build to C:\NewFirmware\ 
 
 
 In cmd, navigate to C:\Keil\ARM\Device\Nordic
rf51822\Board
rf6310\device_firmware_updates\experimental\ble_dfu_send_hex. Then run the command(the last 12 bytes should be your device address): 
 
 
 ipy main.py -f C:\NewFirmware\ble_app_hrs.hex -n DfuTarg -a CDB53D6D16B6 
 
 Open Master Control Panel, and see that your device is not adverising as Nordic_HRM. 
 
 Please let me know if anything is unclear or if you have any other questions. 
 This post has been edited.