Issue with merge file when uploaded over BLE dfu

[BIPIN]

Hi,

I have developed two different application on nRF51822 with two different location. One is start from 0x1D000 with max size of 16 KB and another start from 0x21000 with max size of 60 KB. I have merge two hex file generated from these two application using mergehex. my first application jump on second application depending on some condition.

When i download this merge file using nRFgo studio then it works fine. Application 1 jump on application2 successfully.

But When i upload this merge file over BLE DFU using nRF Toolbox, then only Application 1 work ok but it doesn't jump on Application 2.

when I have checked from keil memory window during debug then i found that nRF Toolbox has uploaded merge file without filling gap by 0xFF in between hex file1 and 2.

Is any solution is available to fill used space by 0xFF for hex file with max size?

Thanks Bipin Patel

[BIPIN]

Hi Wojtek,

Actually I know problem and it is with nRF Toolbox. when i pass merge hex file to toolbox for DFU it doesn't fill 0xff into space between end of first hex file and start on next hex file. so memory location of second hex file going to change in nordic flash. So only first application execute not second.

So is that any way so i can fill 0xff for remaining space in hex file?

Thanks Bipin Patel