S130 crashes on Fujitsu module with 16 KB of RAM

RE: S130 crashes on Fujitsu module with 16 KB of RAM

Susheel Nuguru — Fri, 16 Oct 2015 06:43:01 GMT

Can I ask which Which UICR register??

RE: S130 crashes on Fujitsu module with 16 KB of RAM

ppatierno — Wed, 14 Oct 2015 15:00:06 GMT

We solved the problem. To use internal RC oscillator with Fujitsu module, it's needed to write a specific value inside the UICR register. This change is documented by Fujitsu but they never send the document. I don't know why this change is needed. Why I didn't need to write this register for the DK ?

RE: S130 crashes on Fujitsu module with 16 KB of RAM

ppatierno — Tue, 13 Oct 2015 12:32:11 GMT

we are using the simple template ble_app_template_s110_pca10028

RE: S130 crashes on Fujitsu module with 16 KB of RAM

Susheel Nuguru — Tue, 13 Oct 2015 11:08:08 GMT

which sample example were you trying ... for some reason the the RNG interrupt was triggered wrongly. I have never seen this issue before. need to investigate more ... At this I need to verify this myself.. but i do not have the chip version you have, so it might take few days for me to answer you back.

RE: S130 crashes on Fujitsu module with 16 KB of RAM

ppatierno — Tue, 13 Oct 2015 10:56:43 GMT

If I comment the sd_ble_enable line code, we have the same crash with exactly same assert when calling the next function softdevice_ble_evt_handler_set (always inside the ble_stack_init function)

RE: S130 crashes on Fujitsu module with 16 KB of RAM

Susheel Nuguru — Tue, 13 Oct 2015 10:27:13 GMT

your attached screen shot gave me some useful information. I can now see where inside the softdevice the fault is generated. Can you comment out sd_ble_enable and confirm me that hardfault is still triggered (it should, if the data in the screenshot has to make sense)

If the hardfault is still triggered after you comment out sd_ble_enable, then it seems that there is some hardware issue i need to investigate.

RE: S130 crashes on Fujitsu module with 16 KB of RAM

ppatierno — Tue, 13 Oct 2015 09:43:59 GMT

Just to give you more information ...

Enviroment and Hardware Windows 7 MDK 5.14 SoftDevice 8.0.0

Fujitsu MBH7BLZ07 with nRF51822 CEAAE00 cpuid (0x0079). rom 256KB ram 16KB cpu version 3

We decided to restart from a simple code and copying it from one of the example in nordik sdk. The initialization should be always the same for all the examples. The only difference is :

// Initialize the SoftDevice handler module. SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_RC_250_PPM_250MS_CALIBRATION, NULL);

because the fujitsu soc doesn't mount external low frequency crystal.

For that test we create a new custom board in "custom_board.h" with no led and button, to make the test more clean and simple as we can. The rom starts at 0x18000 and the size is 0x28000, tha ram starts at 0x20002000 and the size is 0x2000.

I updated the post with a screenshot of assert_nrf_callback.

RE: S130 crashes on Fujitsu module with 16 KB of RAM

Susheel Nuguru — Tue, 13 Oct 2015 08:48:44 GMT

If the hardfault is triggered inside and seems like SOFTDEVICE_HANDKER_INIT was successful, then you can put a breakpoint at assert_nrf_callback function, which will be called when softdevice asserts. Atleast we can get the file and line number inside softdevice where hardfault was generated and I can look into it.

RE: S130 crashes on Fujitsu module with 16 KB of RAM

ppatierno — Tue, 13 Oct 2015 08:20:42 GMT

I already debug into ble_stack_init. When I call the sd_ble_enable it doesn't return but the code jumps to the hard fault handler

RE: S130 crashes on Fujitsu module with 16 KB of RAM

Susheel Nuguru — Tue, 13 Oct 2015 07:15:55 GMT

Please debug it into the ble_stack_init function and tell us what error code was returned inside it. There are few APP_ERROR_CHECK macro inside that function and if err_code is not NRF_SUCCESS it will reset your chip.

RE: S130 crashes on Fujitsu module with 16 KB of RAM

ppatierno — Mon, 12 Oct 2015 14:27:16 GMT

It crashes just calling that function

RE: S130 crashes on Fujitsu module with 16 KB of RAM

Susheel Nuguru — Mon, 12 Oct 2015 11:14:28 GMT

We do not know why the application crashes, but it will be possible for you to debug where the crash happened. You say that sd_ble_Enable always crashes? just calling that function crashes or it crashes after it returns?

RE: S130 crashes on Fujitsu module with 16 KB of RAM

ppatierno — Fri, 09 Oct 2015 13:31:27 GMT

We are already using the internal RC oscillator on both boards (DK and Fujitsu module).

RE: S130 crashes on Fujitsu module with 16 KB of RAM

Vidar Berg — Fri, 09 Oct 2015 13:29:33 GMT

Are you sure you are using the correct clock source? As you may know, the DK kit uses an external crystal as the LF clock source, but many modules does not have it. Instead you can use the internal RC oscillator

RE: S130 crashes on Fujitsu module with 16 KB of RAM

ppatierno — Fri, 09 Oct 2015 12:37:46 GMT

Now we are trying to use S110 stack with a related example from Nordic. Programming S110 we don't receive the error but the sample application crashes. The function is always the sd_ble_enable(). Of course the application works fine on Nordic DK but crashes on Fujitsu module.

Attached you can find the programming error.

RE: S130 crashes on Fujitsu module with 16 KB of RAM

Susheel Nuguru — Fri, 09 Oct 2015 10:57:50 GMT

The programming step fails? but that has nothing to do if softdevice is built for 16KB or 32KB. What is the error message given when the step fails? Do you have more than one chip to test this behavior? I do not have rev 3 chip with 16KB RAM, else i would have tried it right away.

RE: S130 crashes on Fujitsu module with 16 KB of RAM

ppatierno — Fri, 09 Oct 2015 10:37:19 GMT

Our Fujitsu module has chip Rev.3. To give you more information I notice the following strange behavior : when I use nRFGo studio to flash the S130 stack on the module, the programming step fails more time before go right. When it works, the region 0 shows "unknown" and not S130. I'm flshing the S130 HEX file under : NordicSemiconductor\nRF_SoftDevice_S130\1.0.0\hex Is it possible that this HEX file has some information about 32 KB of RAM instead 16 KB of RAM we are using ?

RE: S130 crashes on Fujitsu module with 16 KB of RAM

Susheel Nuguru — Fri, 09 Oct 2015 09:39:33 GMT

S1301.0.0 should work even with 16KB RAM. which version of chip are you using? is it IC rev2 or IC rev3?

RE: S130 crashes on Fujitsu module with 16 KB of RAM

ppatierno — Thu, 08 Oct 2015 14:25:48 GMT

Yes of course

RE: S130 crashes on Fujitsu module with 16 KB of RAM

Susheel Nuguru — Thu, 08 Oct 2015 08:29:15 GMT

have you changed your IRAM settings to reflect the change from 32KB to 16KB RAM?