How can I check if the nrf52832 in my custom board is working?

RE: How can I check if the nrf52832 in my custom board is working?

Ander GB — Wed, 20 Feb 2019 09:36:23 GMT

Sorry for the delay. Here is the log:

--------------------------------------------------------------------------------
nrfjprog.exe --recover --log
nrfjprog verion 9.7.1
--------------------------------------------------------------------------------
FUNCTION: open_dll.
FUNCTION: open_dll.
FUNCTION: enum_emu_snr.
FUNCTION: enum_emu_snr.
FUNCTION: enum_emu_snr.
FUNCTION: enum_emu_snr.
FUNCTION: connect_to_emu_with_snr.
FUNCTION: connect_to_emu_with_snr.
FUNCTION: connect_to_emu_without_snr.
FUNCTION: enum_emu_snr.
Device "NRF52832_XXAA" selected.
FUNCTION: read_connected_emu_snr.
FUNCTION: read_connected_emu_snr.
FUNCTION: read_device_family.
FUNCTION: read_device_family.
FUNCTION: close_dll.
FUNCTION: close_dll.
FUNCTION: open_dll.
FUNCTION: open_dll.
FUNCTION: connect_to_emu_with_snr.
FUNCTION: connect_to_emu_with_snr.
FUNCTION: connect_to_emu_without_snr.
FUNCTION: enum_emu_snr.
Device "NRF52832_XXAA" selected.
FUNCTION: recover.
FUNCTION: recover.
Found SW-DP with ID 0x2BA01477
Found SW-DP with ID 0x2BA01477
Scanning AP map to find all available APs
AP[2]: Stopped AP scan as end of AP map has been reached
AP[0]: AHB-AP (IDR: 0x24770011)
AP[1]: JTAG-AP (IDR: 0x02880000)
Iterating through AP map to find AHB-AP to use
AP[0]: Core found
AP[0]: AHB-AP ROM base: 0xE00FF000
CPUID register: 0x410FC241. Implementer code: 0x41 (ARM)
Found Cortex-M4 r0p1, Little endian.
FPUnit: 6 code (BP) slots and 2 literal slots
CoreSight components:
ROMTbl[0] @ E00FF000
ROMTbl[0][0]: E000E000, CID: B105E00D, PID: 000BB00C SCS
ROMTbl[0][1]: E0001000, CID: B105E00D, PID: 003BB002 DWT
ROMTbl[0][2]: E0002000, CID: B105E00D, PID: 002BB003 FPB
ROMTbl[0][3]: E0000000, CID: B105E00D, PID: 003BB001 ITM
ROMTbl[0][4]: E0040000, CID: B105900D, PID: 000BB9A1 TPIU
ROMTbl[0][5]: E0041000, CID: B105900D, PID: 000BB925 ETM
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via AIRCR.SYSRESETREQ.
Reset: Halt core after reset via DEMCR.VC_CORERESET.
Reset: Reset device via AIRCR.SYSRESETREQ.
FUNCTION: close_dll.
FUNCTION: close_dll.

RE: How can I check if the nrf52832 in my custom board is working?

Andreas — Tue, 15 Jan 2019 08:28:51 GMT

Hi,

3.3V on DEC4 is definitely not right if you measured this at C10 (not by accident DEC3 or anything)

Using nrfjprog, part of our command line tools, are you able to make a log and share with us? Install and run the command nrfjprog --recover --log (debugger connected to the custom board), and post the log here.

Best regards,

Andreas

RE: How can I check if the nrf52832 in my custom board is working?

Ander GB — Mon, 14 Jan 2019 14:21:09 GMT

Hi Andreas, thank you for replying so fast. The voltage level at VDD is correct (3.3V from a VLO) but for some reason the voltage at DEC4 is also 3.3V, no ~1.27V as you suggested, does that mean that somehow I corrupted the SoC as I first guessed?

Regards,

AGB

RE: How can I check if the nrf52832 in my custom board is working?

awneil — Mon, 14 Jan 2019 12:13:00 GMT

First thing: can you connect to it via SWD ?

RE: How can I check if the nrf52832 in my custom board is working?

Andreas — Mon, 14 Jan 2019 12:11:25 GMT

Hi,

Measure voltage on VDD and DEC4, if VDD is the correct level and DEC4 is ~1.27V the SoC has power as it should. There is no pin outputting a square signal, or similar. If VDD and DEC4 is as expected you might want to go over your setup once more, possibly try to use a different debugger/DK. Have you measured if there is connection between the SWD pins and the header you hook up to your debugger?

Best regards

Andreas