Bootloader without SoftDevice

[Dima]

Hello

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 sensor. One of sensor's pin report to gpiote about new data.

Interruptions in application

• gpiote
• spi
• rtc

Facts:

• My application, if I put it to 0x0000, operate fine
• If I put my app to 0xC000, then JUMP to appliction happens fine
• If jumped from bootloader, during init of LIS3DH in my app I see all go to hardfault.
• I see RTC interrupt is redirected correctly, but SPI is not and leed to hardfault

I can't understend whats wrong with vectors table redirection.

A. Please, advice, why hardfault happens

B. Hardfault handler in main.c of application don't work. I do not know why, please, help with it

Thank you. Projects are attached with this link

[Hung Bui]

@Dima: We have an example and some explanation here.

[Dima]

Dear Hung Bui Thanks for help. My code is based on topics&exaples you proposed. For this moment I have found out that RTC irq is redirected correctly, but SPI irqs under is not. Can't understand why.

[bjorn-spockeli]

@Dima: Have you made any progress regarding this issue?

[Dima]

No. Just found out that in my bootloader left SPI init. I am removed init, but it was useless

[bjorn-spockeli]

@mrengineer(Dima): Have you found out why the SPI IRQs arent forwarded?