Program S120 over Keil

[Mike]

Hi

I want to program the S120 softdevice over an mbed HRM1017 ([link text] that uses nrf51822. I can program only with CMSIS-DAP or drag and drop over the drive. I am using KEIl Uvision free version (32k limit). I first flashed the softdevice with this settings:

Then I programmed the heart collector example with this settings:

But my program hangs at sd_softdevice_enable. I loaded S120 v2.00 and work with examples of sdk v8.00. What am I doing wrong?

[Hung Bui]

@Mike: I'm testing here and seeing no problem. Have you made sure you followed this instruction correctly : http://www.keil.com/support/man/docs/uv4/uv4_fl_hexdownload.htm ?

Note that the HRM1017 module doesn't have 32kHz crystal, so you need to use the 32kHz RC (NRF_CLOCK_LFCLKSRC_RC_250_PPM_250MS_CALIBRATION) when calling SOFTDEVICE_HANDLER_INIT() instead of NRF_CLOCK_LFCLKSRC_XTAL_20_PPM.

[Mike]

Really a big thank you! Now it works! It was the 32kHz crystal.