Unable to run my program or examples

RE: Unable to run my program or examples

FormerMember — Mon, 20 Mar 2017 08:12:48 GMT

Thanks! Could you check if it works to manually start the HFCLK?

RE: Unable to run my program or examples

Lezto22 — Fri, 17 Mar 2017 15:15:41 GMT

I tried again run in debug mode, but it get stuck when I call clock related fuctions as `ble_stack_init().

The left module works fine - the right unstable

Schematic:

PCB:

Antenna soldering on Unstable module

RE: Unable to run my program or examples

FormerMember — Fri, 17 Mar 2017 10:15:37 GMT

In addition, could you upload a picture of the module?

RE: Unable to run my program or examples

FormerMember — Fri, 17 Mar 2017 10:14:57 GMT

When the device work fairly unstable. Could you run the chip in debug mode and check if something happens after 40-60 s? Could you also check if the antenna is well connected, that there is no soldering problem?

RE: Unable to run my program or examples

Lezto22 — Thu, 16 Mar 2017 16:57:32 GMT

Yes, I am using the same clock source for all my modules. I tested the module again using diferent examples and it works on ones and not on others. Where the hex files are under 50kbs it "works". I changed the optimization settings for my code and it work now, But fairly unstable. It works 40-60 seconds and it goes down. I tested the same files on other Rigado module and works fine. I attached a graph using nRF connect the connection time comparing two modules, same hardware, same software.

RE: Unable to run my program or examples

FormerMember — Thu, 16 Mar 2017 09:01:54 GMT

Okay, so the examples in the SDK work on the "failing" board, but not your own application? And you are sure that the clock source has been changed to the correct one?

RE: Unable to run my program or examples

Lezto22 — Wed, 15 Mar 2017 16:48:23 GMT

For testing I programmed the secure bootloader example (I changed the Board.h for the rigado module) I wanted to know if the module was still alive and It works!! but I am not able to run my own application on that module.

I think it is so weird.

update:

I programmed a quick the softdevice+bootloader to perform DFU to for test the modules.
Both modules are running the DFU secure service from the Nordic SDK examples.
perform the DFU for the module 1 the APP works!(module that works fine )
perform the DFU for the module 2 the APP does not work ( module with the issue)
erase all
repeat steps (1), (2), switch (4) and (3) - same result

RE: Unable to run my program or examples

Lezto22 — Wed, 15 Mar 2017 15:14:01 GMT

No, It does not. I noticed in debug mode it get stuck on ble_stack_init() also I noticed if I call uart_init() before the ble_stack_init() or any other clock related the debug mode get stuck there.

I moved my uart_init() after the ble_stack_init() and it get stuck on the next clock related function in this case I got stuck now on printf("Start Program\r\n"); -- It happens only on the affected module the others works with no issue.

RE: Unable to run my program or examples

FormerMember — Wed, 15 Mar 2017 13:28:18 GMT

Does it work to run the chip in debug mode?

RE: Unable to run my program or examples

Lezto22 — Wed, 15 Mar 2017 12:03:33 GMT

Hi Kristin,

Yes all the modules are identical, but one module get stuck there, same hardware and same software. The order as I programed each module is the following: Softdevice+Application.

Could this be a defective module? The weird for me is... I am able to debugging it and when it arrives with the manufacter firmware it was working using a DFU service (I removed it to be able to reprogramming using the Nordic SDK)

RE: Unable to run my program or examples

FormerMember — Wed, 15 Mar 2017 08:03:32 GMT

As LFCLK source, and with low power consumption in mind, I would recommend you to use NRF_CLOCK_LF_SRC_RC instead of NRF_CLOCK_LF_SRC_SYNTH. The reason is that the synthesized clock requires the HFCLK to run when it is in use (which is all the time when the softdevice is enabled).

On the module that is failing, where in the ble_stack_init() does it fail? Is the chip of the same revision as the other chips?

RE: Unable to run my program or examples

Lezto22 — Tue, 14 Mar 2017 19:00:06 GMT

Hi guys. I found the "problem" It was related to the NRF_CLOCK_LFCLKSRC I dont have an external LFCLCK because I dont use it on my software, but seems as the Softdevice uses it. I changed it to NRF_CLOCK_LF_SRC_RC or NRF_CLOCK_LF_SRC_SYNTH and all works pretty good almost the modules does start. The issue now I have is... all are identical hardware (rigado module), but one of thoses modules wont start and it get stuck on "ble_stack_init()" all the others modules works except for one that get stuck there