https://devzone.nordicsemi.com/f/nordic-q-a/21394/bootloader-without-softdeviceHello I am building bootloader. I do not use Softdevice and used example from this topic . Bootloader must read FW from uSD card, update flash and jump to application. uSD card is connected to SPI0 of nrf51. SPI1 is used for external LIS3DH sensoren-USTelligent Community 13Sun, 11 Jun 2017 21:23:44 GMThttps://devzone.nordicsemi.com/thread/83839?ContentTypeID=1Sun, 11 Jun 2017 21:23:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ede4b716-f5f8-4ae2-87cc-49969f2042c2Dima<p>Yes I am solved it. You must deinit all before jump to programm. Do interrupts_disable(); Deinit SPI</p> <p>Also I am corrected my programm address to 0x5400</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/83838?ContentTypeID=1Tue, 06 Jun 2017 14:06:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4ffb0bee-ef19-409d-a857-5bf77814bb66bjorn-spockeli<p>@mrengineer(Dima): Have you found out why the SPI IRQs arent forwarded?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/83837?ContentTypeID=1Fri, 05 May 2017 20:52:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:38b32919-f7eb-4d2c-9422-3134582a8aa1Dima<p>No. Just found out that in my bootloader left SPI init. I am removed init, but it was useless</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/83836?ContentTypeID=1Fri, 05 May 2017 13:04:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:296740d4-a18e-4716-a718-2f684bc848e6bjorn-spockeli<p>@Dima: Have you made any progress regarding this issue?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/83835?ContentTypeID=1Mon, 24 Apr 2017 19:54:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2a180e99-d909-4e7a-b494-bc7ddbac7fcbDima<p>Dear Hung Bui Thanks for help. My code is based on topics&amp;exaples you proposed. For this moment I have found out that <strong><em>RTC irq is redirected correctly, but SPI irqs under is not. Can&#39;t understand why.</em></strong></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/83834?ContentTypeID=1Mon, 24 Apr 2017 14:19:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2f6e8718-3a64-47bd-9baf-ba05006d638dHung Bui<p>@Dima: We have an example and some explanation <a href="https://devzone.nordicsemi.com/question/52909/nrf51-bootloader-without-softdevice-sdk-810/">here</a>.</p><div style="clear:both;"></div>