How to add spis example in Secure DFU ble example

[Akshay19]

Hi Nordic Team,

                         I was doing OTA in nrf52840 using Secure DFU ble example in nrf5 sdk. Where i want add some customizations in the code.

1.I wanted to add spis example to secure dfu ble example.to send date to another ic. it is working perfectly fine when using spis example .but when i add the spis slave example to secure dfu 

code it is not working.(on stm32(other chip) side it is giving 0xffff data. but it was working fine with spis example)

2.how can we add a spis peripheral example to secure dfu.

pls help

[Vidar Berg]

OK, it's hard to say what's just wrong based on the information given. Can you attach the debugger after the reset and check if the SPIS buffer is being set? Also, does the reset button also reset the stm?

[Akshay19]

no from stm im giving reset to nrf dfu.but when i put dfu code in nrf52840 dk and pressed the boot/reset pin that is not triggering a reset to nrf in dk also..whether we need to add something in nrf dfu code

[Vidar Berg]

Have you tried to see if it works if you also reset the stm? I wonder if the CS line might being asserted by the stm while the nRF reboots.

Also, were you able to debug the bootloader like I suggested?