JLINKk programming header w/ tag connect

RE: JLINKk programming header w/ tag connect

jor — Tue, 25 Nov 2014 14:58:42 GMT

Which of the supply pins should be connected to the VTref? According to the figure 7,page 40 of nRF51 Series Reference Manual v2.1, there can be 3 different voltage levels, VDD,AVDD or DEC2?

RE: JLINKk programming header w/ tag connect

Bastiaan — Thu, 19 Sep 2013 15:30:20 GMT

I'm using the JLink Lite which has the same 10 pin header as the TC2030-CTX cable from TagConnect.

-c

RE: JLINKk programming header w/ tag connect

Guest — Thu, 19 Sep 2013 15:30:20 GMT

I'm using the JLink Lite which has the same 10 pin header as the TC2030-CTX cable from TagConnect.

-c

RE: JLINKk programming header w/ tag connect

andrew sauter — Thu, 19 Sep 2013 15:26:24 GMT

Chris

Did you create or buy the interconnect board between your 6pin tag, and the 20pin jlink?

RE: JLINKk programming header w/ tag connect

andrew sauter — Tue, 10 Sep 2013 18:34:56 GMT

thanks chirs and hung

RE: JLINKk programming header w/ tag connect

Hung Bui — Tue, 10 Sep 2013 07:16:31 GMT

Hi Andrew,

Christopher is correct. nReset is not needed. 12k (10k is OK) pull down needed.

If you use Segger Jlink Lite programmer, you would need to provide 3.3V input voltage for the board. And yes you need to power the board when programming.

Device firmware update over the air will be released in the next SDK (v4.4) which is scheduled for this week. Note that it's firmware update, not programming, so you need to flash the BLE stack and bootloader for the first time using SWD.

RE: JLINKk programming header w/ tag connect

Christopher Mason — Tue, 10 Sep 2013 03:16:28 GMT

Yeah, but be aware that I'm using the 6 pin version instead of 10 pin. The pinout seems to match up though.

RE: JLINKk programming header w/ tag connect

andrew sauter — Tue, 10 Sep 2013 02:19:23 GMT

like so (except for the 3.3V and 12k)?

thanks for the reply.

Capture.JPG

RE: JLINKk programming header w/ tag connect

Christopher Mason — Tue, 10 Sep 2013 00:11:09 GMT

I have a design using the TagConnect TC2030-CTX with the Segger JLink Lite (included in the Nordic Dev Kit) and the NRf51822. It seems to work ok. Addressing your specific questions:

No, I have not found nReset to be needed. I believe the NRF51822 uses the SWDCLK line for reset (making it somewhat non-standard). I'm using only the 12k resistor on SWDCLK as recommended by Nordic. Yes, I power the board externally during programming, but with 3.3V. I'm not sure about 2.5V. The power pin (1) to the Segger is for voltage reference and does not supply power from the programmer to the chip.

I use the pinout: 1: Power 2: SWDIO 4: SWDCLK 5: GND

Hope this helps!