Timer and Multirole for PCA20006

[Tobias Hofbaur]

Hello, I have implemented the code below for my project based on switching central and peripheral role in S130. The code works fine on the Devkit PCA10028 but on porting it to PCA20006 I noticed some bugs in the final steps.

• Without line 195 and 271 to 310 everything seems to work well on the Beacon, the LED is toggling in the right frequency. However after some time the frequency seems to roughly double. I cannot solidly quantify this observation.
• Adding the above lines, the beacon does not switch on any LED at all. Only in debug mode the LEDs are switched on and the timer handler is entered. It seems there is a problem with my timer interrupt handling, but I dont know what.
• I Am unsure if this code will be capable of handling 120 interacting nodes (well, mostly only up to 20 should be in close proximity)

Does anybody have an idea what could be my problem when porting to PCA20006? I am also grateful for any ideas to improve the code.

edit1: attached file instead of code: Corrected line numbers to reflect recent changes, as I corrected functionality. edit2: For completness I attached to whole (ecplise) project folder. Putting it into /central_and_peripheral/experimental/ should work. The makefile is currently set for PCA20006.

edit2: attached updated code

edit3: final code

[tesc]

We may have different revisions of the nRF51822 chip on the beacon kit. The markings on mine is CEAAD0, what is yours? Knowing this would let me check the erratas for clues.

Also, I have been powering the beacon from a DK. The power consumption should increase slightly with temperature, may it be that you experience brownouts? You can check the RESETREAS register (See the Reference Manual, table 53 RESETREAS) to see if the chip has been reset from other sources than regular power-off or brownout.