Problem with nRFgo v1.16.1 and nRF51822 SDK 6.0.0

RE: Problem with nRFgo v1.16.1 and nRF51822 SDK 6.0.0

tim — Fri, 02 May 2014 20:45:25 GMT

Chris, Following your adventure, I solved my problems.

The trick was to install keil 5 with the C:\Keil path and uninstall and reinstall the nrf51 sdk.

THX, but that was too painful.

RE: Problem with nRFgo v1.16.1 and nRF51822 SDK 6.0.0

Ole Morten — Mon, 24 Mar 2014 09:26:33 GMT

Great that you got things working! I'll definitely keep this in mind for future questions.

Feel free to accept your own answer to clear up this question, since this is what actually ended up helping you!

RE: Problem with nRFgo v1.16.1 and nRF51822 SDK 6.0.0

Chris Lovett — Fri, 21 Mar 2014 21:07:55 GMT

Found the solution. Turns out the old Keil C 5.0 projects don't "migrate" to the new Keil C 5.1. So I picked up the new HRS sample app from Nordic SDK, copied the .uvproj file, and replaced the source files with my project, and wha-la, everything started working properly, flashing, debugging, etc. Doing a "diff" I see a bunch of niggly little settings had changed which probably explains why it didn't work without this "hand-migration"...

RE: Problem with nRFgo v1.16.1 and nRF51822 SDK 6.0.0

Chris Lovett — Fri, 21 Mar 2014 19:01:49 GMT

thanks for the link and screen shots, I tried all that so my setup matches yours but I still get :

Error: Flash Download failed - "Cortex-M0"

The odd thing is it seems to succeed, my downloaded program is running, I can pair with my BLE device.

But I can't debug it. Here's the output when I try and start debugging:

JLink Info: Device "NRF51822_XXAA" selected (257 KB flash, 16 KB RAM).

JLink info:

DLL: V4.82 , compiled Mar 10 2014 19:07:45 Firmware: J-Link Lite-Cortex-M V8 compiled Aug 29 2012 15:24:23 Hardware: V8.00 S/N : 518001045 Feature(s) : GDB

JLink Info: Found SWD-DP with ID 0x0BB11477
JLink Info: Found Cortex-M0 r0p0, Little endian.
JLink Info: FPUnit: 4 code (BP) slots and 0 literal slots ROMTableAddr = 0xE00FF003

Target info:

Device: nRF51822_xxAA VTarget = 3.351V State of Pins: TCK: 0, TDI: 0, TDO: 1, TMS: 1, TRES: 1, TRST: 1 Hardware-Breakpoints: 4 Software-Breakpoints: 8192 Watchpoints: 2 JTAG speed: 1000 kHz

Erase Done. Programming Failed! Error: Flash Download failed - "Cortex-M0"

RE: Problem with nRFgo v1.16.1 and nRF51822 SDK 6.0.0

Ole Morten — Fri, 21 Mar 2014 09:57:54 GMT

Have you seen this question? Also note my comment there; if the wrong device is selected in the device selection tab, you may not see the correct flash algorithm. Also see the attached screenshots.

RE: Problem with nRFgo v1.16.1 and nRF51822 SDK 6.0.0

Chris Lovett — Fri, 21 Mar 2014 02:26:50 GMT

I got further by installing Keil C version 5.10.

But when I attempt to download the program I still get "JLink - Cortex Error: C:\Keil\ARM\flash\nrf51xxx.flm Cannot Load Flash Device Description"

And this file "nrf51xxx.flm" does not exist. but I do have the Keil pack for cortex M0. Here's the complete output:

JLink Info: Found SWD-DP with ID 0x0BB11477
JLink Info: Found Cortex-M0 r0p0, Little endian.
JLink Info: FPUnit: 4 code (BP) slots and 0 literal slots ROMTableAddr = 0xE00FF003

Target info:

Device: nRF51822_xxAA VTarget = 3.351V State of Pins: TCK: 0, TDI: 0, TDO: 1, TMS: 1, TRES: 1, TRST: 1 Hardware-Breakpoints: 4 Software-Breakpoints: 8192 Watchpoints: 2 JTAG speed: 1000 kHz

Erase Failed! Error: Flash Download failed - "Cortex-M0"