Segger Embedded Studio and Bootloader

[RichieJH]

Continuing with my attempts to get this to work on SES I'm not sure if I'm missing something simple or not.

So using the excellent RKNRFGO (which by the way is much quicker for adding the softdevice than linking it in with SES, highly recommended for any Mac users) when I attempt to add the Bootloader the bootloader nor any app appears to be working. I have tried adding a Code hex which has been compiled linking in bootloader_settings_nrf52.hex and I have tried just the softdevice and the bootloader themselves without any Code hex.

How are other people using SES managing to achieve this?

Thanks

[UPDATE] These are the settings for RKNRFGO and this is the log after flashing.

screenshot.png

Reset delay: 0 ms
Reset type NORMAL: Resets core & peripherals via SYSRESETREQ & VECTRESET bit.

Writing 00000001 -> 4001E504

Reset delay: 0 ms
Reset type NORMAL: Resets core & peripherals via SYSRESETREQ & VECTRESET bit.

Sleep(1000)

Downloading file [Section0.0vOdqsDF.bin]...Comparing flash   [000%]000%]050%]100%] Done.
Erasing flash     [000%]100%] Done.
Programming flash [000%]000%]005%]005%]010%]010%]020%]020%]025%]025%]035%]035%]040%]040%]045%]045%]055%]055%]060%]100%] Done.
Verifying flash   [000%]000%]100%] Done.
J-Link: Flash download: Flash programming performed for 1 range (4096 bytes)
J-Link: Flash download: Total time needed: 0.164s (Prepare: 0.089s, Compare: 0.003s, Erase: 0.000s, Program: 0.061s, Verify: 0.000s, Restore: 0.009s)
O.K.

Downloading file [Section1.lCJ9YuF5.bin]...Comparing flash   [000%]000%]050%]100%] Done.
Erasing flash     [000%]100%] Done.
Programming flash [000%]000%]000%]000%]000%]000%]005%]005%]005%]005%]005%]005%]010%]010%]010%]010%]010%]010%]015%]015%]015%]015%]020%]020%]020%]020%]020%]020%]025%]025%]025%]025%]025%]025%]030%]030%]030%]030%]035%]035%]035%]035%]035%]035%]040%]040%]040%]040%]040%]040%]045%]045%]045%]045%]050%]050%]050%]050%]050%]050%]055%]055%]055%]055%]055%]055%]060%]060%]060%]060%]060%]060%]065%]065%]065%]065%]070%]070%]070%]070%]070%]070%]075%]075%]075%]075%]075%]075%]080%]080%]080%]080%]085%]085%]085%]085%]085%]085%]090%]090%]090%]090%]090%]090%]095%]095%]095%]100%] Done.
Verifying flash   [000%]000%]100%] Done.
J-Link: Flash download: Flash programming performed for 1 range (110592 bytes)
J-Link: Flash download: Total time needed: 2.169s (Prepare: 0.162s, Compare: 0.012s, Erase: 0.000s, Program: 1.905s, Verify: 0.002s, Restore: 0.086s)
O.K.

Downloading file [Section2.j6YAf9Gp.bin]...Comparing flash   [000%]000%]050%]100%] Done.
Erasing flash     [000%]100%] Done.
Programming flash [000%]000%]005%]100%] Done.
Verifying flash   [000%]000%]100%] Done.
J-Link: Flash download: Flash programming performed for 1 range (4096 bytes)
J-Link: Flash download: Total time needed: 0.169s (Prepare: 0.115s, Compare: 0.003s, Erase: 0.000s, Program: 0.011s, Verify: 0.000s, Restore: 0.038s)
O.K.

Downloading file [Section3.RxSJH8nW.bin]...Comparing flash   [000%]000%]050%]050%]100%] Done.
Verifying flash   [000%]100%] Done.
J-Link: Flash download: Flash download skipped. Flash contents already match
O.K.

Downloading file [Section4.qpm37Mkh.bin]...Comparing flash   [000%]000%]050%]050%]100%] Done.
Verifying flash   [000%]100%] Done.
J-Link: Flash download: Flash download skipped. Flash contents already match
O.K.

Downloading file [Section5.CQi0rkWg.bin]...Comparing flash   [000%]000%]040%]040%]050%]050%]090%]100%] Done.
Erasing flash     [000%]000%]100%] Done.
Programming flash [000%]000%]010%]010%]025%]025%]035%]035%]050%]050%]060%]060%]075%]075%]085%]085%]100%] Done.
Verifying flash   [000%]000%]100%] Done.
J-Link: Flash download: Flash programming performed for 1 range (16384 bytes)
J-Link: Flash download: Total time needed: 0.662s (Prepare: 0.162s, Compare: 0.099s, Erase: 0.031s, Program: 0.282s, Verify: 0.000s, Restore: 0.086s)
O.K.

Downloading file [Section6.W0fSYpr8.bin]...Comparing flash   [000%]000%]050%]100%] Done.
Erasing flash     [000%]000%]100%] Done.
Programming flash [000%]000%]005%]100%] Done.
Verifying flash   [000%]000%]100%] Done.
J-Link: Flash download: Flash programming performed for 1 range (4096 bytes)
J-Link: Flash download: Total time needed: 0.171s (Prepare: 0.115s, Compare: 0.004s, Erase: 0.007s, Program: 0.004s, Verify: 0.000s, Restore: 0.038s)
O.K.

Downloading file [Section7.LMfV07KW.bin]...Comparing flash   [000%]000%]050%]100%] Done.
Erasing flash     [000%]000%]100%] Done.
Programming flash [000%]000%]005%]100%] Done.
Verifying flash   [000%]000%]100%] Done.
J-Link: Flash download: Flash programming performed for 1 range (4096 bytes)
J-Link: Flash download: Total time needed: 0.171s (Prepare: 0.114s, Compare: 0.004s, Erase: 0.007s, Program: 0.004s, Verify: 0.000s, Restore: 0.038s)
O.K.

Sleep(1000)

Reset delay: 0 ms
Reset type NORMAL: Resets core & peripherals via SYSRESETREQ & VECTRESET bit.


Script processing completed.

[RK]

yes with an erased chip with just the bootloader and softdevice it should jump to the bootloader. I didn't know there was a pre-built bootloader.hex, so I never tried it.

So possible issues are it's not actually getting downloaded, I'm sure you selected nrf52 mode in RKNRFGO, or the special bootloader area of the UICR isn't being set with the correct data, so there's no knowledge of there being a bootloader for it to jump to. It certainly works with the version of the bootloader I built, probably before Nordic started shipping a precompiled hex plus the 132 softdevice and with the bootloader I built for nrf51 before that.

I'd suggest taking a look at the memory after the programming to make sure the bootloader and SD are where you expect and 0x1000104 has the bootloader address etc. What's the log say?

also try with the nordic nrfjprog too, then we can play spot the difference.