How could I program the BMD-300 with a nRF52 Preview Development Kit?

RE: How could I program the BMD-300 with a nRF52 Preview Development Kit?

Chris H. — Sun, 18 Sep 2016 20:43:49 GMT

Also make sure to edit your boards def file. The BMD-300 uses a resonator not an xtal. I had the same problem with my code not working and this fixed it.

Original code toward the bottom of the file: // Low frequency clock source to be used by the SoftDevice #define NRF_CLOCK_LFCLKSRC {.source = NRF_CLOCK_LF_SRC_XTAL,
.rc_ctiv = 0,
.rc_temp_ctiv = 0,
.xtal_accuracy = NRF_CLOCK_LF_XTAL_ACCURACY_20_PPM} Change this to: // Low frequency clock source to be used by the SoftDevice #define NRF_CLOCK_LFCLKSRC {.source = NRF_CLOCK_LF_SRC_RC,
.rc_ctiv = 16,
.rc_temp_ctiv = 4,
.xtal_accuracy = 0}\ accuracy ignored when using RC

RE: How could I program the BMD-300 with a nRF52 Preview Development Kit?

Nitram — Tue, 09 Aug 2016 09:29:08 GMT

OK, than there is a problem with my code. Thanks for help!

RE: How could I program the BMD-300 with a nRF52 Preview Development Kit?

Keton — Tue, 09 Aug 2016 09:23:15 GMT

could you compile your example program in keil, enter debug session (Ctrl-F5) and check that little yellow arrow is on the lefo of one of the first lines of main() function in main.c file? If there's no arrow it means that your program never completes the init. If it's there it means that errors are in your code not in the debugging setup.

RE: How could I program the BMD-300 with a nRF52 Preview Development Kit?

Nitram — Tue, 09 Aug 2016 09:16:42 GMT

When I recover the nRF52832 (DK) with nrfjprog and program it with Keil, it works. I have choose the ble_app_template_s132_pca10036. After programming the BMD-300, nRFgo Studio shows the Aplication and the SoftDevice. Do you know an example (program), which definitely works on the BMD-300?

RE: How could I program the BMD-300 with a nRF52 Preview Development Kit?

Keton — Tue, 09 Aug 2016 08:22:12 GMT

@Nitram if you preform recover on the nRF52DK does it work? Aslo make sure that you've flashed correct softdevice. Receover operation wipes all data from chip so softdevice should be reflashed i.e. using nRFGoStudio. Also check your memory map.

RE: How could I program the BMD-300 with a nRF52 Preview Development Kit?

Nitram — Tue, 09 Aug 2016 08:08:21 GMT

Thanks for your help. Now, I can program the BMD-300. But the program doesn’t start. I have also program the nrf52832 of the Dev Kit and there it works.

RE: How could I program the BMD-300 with a nRF52 Preview Development Kit?

Keton — Thu, 04 Aug 2016 08:59:18 GMT

BMD300 require performing recovery before flashing softdevice. do nrfjprog --family nrf52 --recover before you try anything else.

Also in my experience it is quite poor quality oftentimes nRFGoStudio says flash is not erased despite --recover and many attempts of full chip erase. And since I have no remedy for that I have to discard a chip and take new one. Any ideas what it may mean?

RE: How could I program the BMD-300 with a nRF52 Preview Development Kit?

Nitram — Thu, 04 Aug 2016 07:39:41 GMT

I have checked the connection of SWDIO, SWDCLK, VDD and GND with a multimeter (from P20 to the nrf52832 of the BMD-300), but I couldn’t find an error. The program, which has been on the chip since buying, works. When I connect the BMD-300 with the Dev Kit and I start the nrfgo, the current of the generator, which supplies the BMD-300, rises and the LED L05 goes off.

RE: How could I program the BMD-300 with a nRF52 Preview Development Kit?

Ole Bauck — Wed, 03 Aug 2016 13:39:31 GMT

The setup looks correct, but the error indicates that something on the interface is not connected, the debug wires are switched or the device does not have power. Can you check that everything is connected properly and include a picture in your questions if you still have problems?