nRF52 single bank: REMOTE DFU INVALID CRC ERROR

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Gordon — Wed, 24 Aug 2016 14:17:21 GMT

Found it. In pstorage_platform.h, there should be a typedef uint32_t pstorage_size_t;. However in 95% of the examples in the SDK, the file actually contains typedef uint16_t pstorage_size_t;

Since I was trying to use the same build system with the same _platform.h files for my app and bootloader, I got hit with this.

I hit another similar problem when trying to get NFC working. A simple #error if the typedef is wrong for the bootloader could save a lot of people a lot of time.

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Petter Myhre — Wed, 24 Aug 2016 14:05:19 GMT

It should start in bootloader mode:

nrfjprog -f nrf52 -e
nrfjprog -f nrf52 --program s132_nrf52_2.0.0_softdevice.hex
nrfjprog -f nrf52 --program gcc_bootloader_nrf52.hex
nrfjprog -f nrf52 -r

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Gordon — Wed, 24 Aug 2016 14:01:00 GMT

And just to add, Michael Dietz had provided a pre-compiled single bank bootloader hex file, and that seems to work fine with the larger binary, so it's something to do with the way the bootloader is compiled... But what could be causing it to upload corrupted data without any warnings being produced?

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Gordon — Wed, 24 Aug 2016 13:55:45 GMT

Yes, I'm using s132_nrf52_2.0.0_softdevice too (it's the one used for Espruino), but your hex file doesn't appear to work (no LEDs, no advertising). Do I have to do something special to get into bootloader mode? I tried dfu_dual_bank_ble_s132_pca10040.hex from Nordic's own SDK, and my _sml image does upload fine though (I'll edit my answer, i'd got the wrong binary).

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Petter Myhre — Wed, 24 Aug 2016 13:34:36 GMT

Just to confirm, you got my bootloader to work and you are using s132_nrf52_2.0.0_softdevice.hex as well?

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Gordon — Wed, 24 Aug 2016 13:17:08 GMT

Interesting - I just tried and yes, your small zip works. The bootloader fails with the _sml zip from the link I gave though. It's not as small, but would still fit in 1 bank. I also took the _sml bin file and just truncated it to 40kB. It uploads file too... So it looks like it's to do with firmware size

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Petter Myhre — Wed, 24 Aug 2016 12:20:23 GMT

I'm using s132_nrf52_2.0.0_softdevice.hex Please have a look at my edit.

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Gordon — Wed, 24 Aug 2016 12:01:30 GMT

And your bootloader doesn't work for me. What SoftDevice are you using? (the hex file I supplied above should contain bootloader + sd + app - if you flashed just the bootloader + app it almost certainly wouldn't have worked)

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Gordon — Wed, 24 Aug 2016 11:59:21 GMT

Really? I just saved the file espruino_1v86.90_nrf52832_full.hex linked above onto the board and it works great, appearing as Espruino NRF52832DK normally, and DfuTarg when reset with BTN1 held down. You can also connect via Serial at 9600 baud. Do you not get that? I've provided similar firmwares to others and they haven't had any trouble.

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Petter Myhre — Wed, 24 Aug 2016 11:51:27 GMT

I tried to flash your full hex file. I can't get it to advertise. Tried to reset and holding down buttons.

I tested the gcc compiled bootloader in SDK 11.0.0. Seems to be working fine. Could you test it?

Edit: Sorry. Got it working now. I got the REMOTE DFU INVALID CRC ERROR when doing DFU with espruino_1v86.90_nrf52832_dfu.zip. Then I tried with with ble_app_hrs, this zip, and that worked fine. No error.

But you got the error witha smaller image as well? And with the unmodified dual bootloader from the SDK?

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Gordon — Mon, 22 Aug 2016 13:22:33 GMT

Yes, it happens with the dual bank. It wasn't modified past recompiling it in GCC, changing LED/BTN pins, and nudging it back in memory (as GCC doesn't get the code size down as far as Keil).

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Petter Myhre — Mon, 22 Aug 2016 13:04:22 GMT

It happens with the unmodified dual bank bootloader as well? Or did you modify it?

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Gordon — Fri, 19 Aug 2016 10:32:21 GMT

Just to add: I compiled with the dual bank bootloader and the smaller image. Same problem with the CRC error...

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Gordon — Fri, 19 Aug 2016 10:22:18 GMT

Looks like I can't upload ZIPs anyway, so I put everything (compiled for nRF52 DK) here: www.espruino.com/.../

Just upload the 'full' hex file, reset the board with BTN1 held down, and then use the Nordic updater app with the zip file, and you should get the same problem.

All the source code is at github.com/.../Espruino

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Gordon — Thu, 18 Aug 2016 14:31:43 GMT

I tried with 117kB and 240k instead of 330k but no luck (however corruption is up to the exact same place). Any thoughts about how this could be debugged, given I can't easily connect the debugger while BLE is in use. I can supply binaries for nRF52DK...

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Petter Myhre — Thu, 18 Aug 2016 13:49:33 GMT

Does it work with smaller example? Could you also upload the two memory images?

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Gordon — Thu, 18 Aug 2016 13:04:00 GMT

Unfortunately I can't test it because the binary file is too large (hence the single bank loader). I just checked the bin file, and the crc in the manifest is definitely correct... I did a firmware update using Android (which failed), then dumped the contents of memory and compared the two memory areas. Everything after 0x10010 in the binary (so absolute address 0x2c010 as the binary starts at 0x1c000) seems to be correct, but everything before is trashed - mostly 0x00, with some 0x10, 0x20, 0x40 and few very occasional other values.

RE: nRF52 single bank: REMOTE DFU INVALID CRC ERROR

Petter Myhre — Thu, 18 Aug 2016 11:53:15 GMT

I'm not sure what is causing this. Does dfu.zip work with the dual bank bootloader?