I upgraded to: Keil V5.11.1.0 J-Link 4.90 nRFgo Studio 1.17 S110_nrf51822_6.0.0
The blinky demo works fine, but s110 demos like the ble_app_hrs won't advertise. LED 0 doesn't blink, and MCP 3.6 using the PCA1000 dongle won't discover it. They're will discover my iBeacon demo kit so I know they're working.
My PCA10001 EK board is V2.2.0 with an nRF51822QFG0-1342AA
Keil had the IROM1 address = 0x16000, which I changed to 0x14000 per nRFgo studio and the S110 migration notes. Didn't fix it. I've tried both the Keil 4 legacy apps, and the Keil 5 apps without luck. Given blinky works, and the hrs app worked before my upgrades it doesn't seem likely my hardware has failed. But after fighting this for over a day I'm out of ideas.
Does anyone have a suggestion I could try?
Thanks in advance!
Lee