[nRF51822] How to merge software device and application code to one hex file

[Jeffery]

Hi sir In order to simplify the flow of programming hex file to nRF51, we want to merge Softdevice hex file with application hex file. Then, generate a new hex file. Could "mergehex" tool make it? If yes, please make a instance how to work it. Thanks.

[andy2003hunan]

yeah,it is a good ideal.i hope someone can help you.also i want to know the solution too.

[Jeffery]

Dear Nordic Could you tell me how to do it? Thanks.

[Martijn]

I don't think that is desireable ... The softdevice ram and code is placed in a protected region, and by generating a single file this will not be possible. The softdevice ram will be available to application code.

We created our own softdevice and we do not want anyone to be able to read our ram data, this causes some really bad security issues!

[Jeffery]

Dears It would be a big problem for us. So, it's no use to combine protected SoftDev hex and application hex by mergehex? nRFgo is not suitable for programing nRF51822 in production line. In mass production, the job to program nRF51822 is charged by outsourcing vendor. We shall provide them only hex file to program. They program nRF51822 in chip level but not in PCB level. Do you have any idea to solve this problem? I appreciate it.

[andy2003hunan]

i think it is easy to do.you just reserve some pins for programming and power supply on your PCBA,then you provide programmer for your supplier. in production line the worker can use nRF STUDIO to program the nrf51822 on the PCBA .