PCA10000 and SDK 11

RE: PCA10000 and SDK 11

Vidar Berg — Tue, 22 Mar 2016 12:39:45 GMT

All SDK examples from SDK 7.x.x and later are by default configured for the xxAC variant which has 32K of RAM instead of 16K. So since you are working on a 16K RAM variant you need to adjust the linker settings accordingly if you haven't done so already?

E.g., correct settings for the \nRF5_SDK_11.0.0\examples\peripheral\blinky\pca10028\blank\armgcc example:

/* Linker script to configure memory regions. */

SEARCH_DIR(.)GROUP(-lgcc -lc -lnosys)

MEMORY{

FLASH (rx) : ORIGIN = 0x0, LENGTH = 0x40000

RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x4000  //changed from 0x8000

}

SECTIONS{

.fs_data : { PROVIDE(__start_fs_data = .);

KEEP(*(.fs_data)) PROVIDE(__stop_fs_data = .);

} > RAM} INSERT AFTER .data;

INCLUDE "nrf5x_common.ld"

RE: PCA10000 and SDK 11

Lee — Fri, 18 Mar 2016 09:10:38 GMT

I will try it, but I am only changing:

nrf_delay_ms(500); to nrf_delay_ms(250);

RE: PCA10000 and SDK 11

Torsten Robitzki — Fri, 18 Mar 2016 09:03:10 GMT

Take the original source, build the hex file from source and try to run it. Just to make sure, that your code changes are not the reason, for the failure.

RE: PCA10000 and SDK 11

Lee — Fri, 18 Mar 2016 08:56:07 GMT

What do you mean by run a self build hex file?

RE: PCA10000 and SDK 11

Torsten Robitzki — Fri, 18 Mar 2016 08:43:02 GMT

You first loadfile and then you erase the chip? Have you tried to run a self build hex file, without modifying the source? (just to make sure, that your process is working)

RE: PCA10000 and SDK 11

Lee — Fri, 18 Mar 2016 08:17:49 GMT

Thanks for responding. My dev machine is running Ubuntu 15.04. I have downloaded and installed the SDK11, J-Link tools, and the armgcc tools and I am using the PCA10000. My aim is to use the blinky example to make sure that my dev environment is working correctly and also program the PCA10000. In the SDK, I navigate down to:

~/SDK11/examples/peripheral/blinky/hex

I then run:

JLinkExe -device nRF51

This allows me to connect to the PCA10000.

I then:

loadfile blinky_blank_pca10031.hex

I then run erase, then enter r, then g (as per devzone.nordicsemi.com/.../7). The LED on my PCA10000 changes colour as I would expect so I can see that ~/SDK11/examples/peripheral/blinky/hex/blinky_blank_pca10031.hex and my steps to program it to my board and run it are working correctly. I exit JLinkExe.

I then navigate to: ~/SDK11/examples/peripheral/blinky

I modify main.c to change the delay in order to get the LED to flash quicker (again, this is merely to prove my dev environment).

I save the file then navigate to:

~/SDK11/examples/peripheral/blinky/pca10031/blank/armgcc

I then run:

make

This generates a directory called _build and everything appears to build correctly. This contains .hex .out .bin .map and some other files from the make process. I navigate to:

~/SDK11/examples/peripheral/blinky/pca10031/blank/armgcc/_build

I then run:

JLinkExe -device nRF51

I then:

loadfile nrf51422_xxac.hex

I then erase, enter r, then enter g. Nothing happens. No flashing LED, flames, sparks or explosions.

I assume that blinky_blank_pca10031.hex was generated using IAR or Keil and so can't really tell much from comparing the .hex files other than to say that they're both very similar in size.

I have tried to copy:

~/SDK11/examples/peripheral/blinky/pca10031 to ~/SDK11/examples/peripheral/blinky/pca10000

I have changed any references of pca10031 to pca10000 and rerun the make file but with no success.

Am I missing a step or am I not editing the correct files? Any help is much appreciated.

Thanks.

RE: PCA10000 and SDK 11

RK — Fri, 18 Mar 2016 00:39:47 GMT

Not really - because there's far too little information in your question. You say you are trying to build the example, but you don't say what the problem is, is it not building at all, does it not work, in what way does it not work if it doesn't work, are there make errors, run errors, does the chip burst into flames?