HardFault on saadc_init();

[Proton]

Hello! When I start the s132 device, it freezes from time to time. In debug mode, it does not exit the saadc_init () function;

I connected "hardfault.h" and "hardfault_genhf.h", pressed further and still does not exit saadc_init (), but stops at ses_startup_nrf52.s

What is the reason and how can I get rid of this problem?

[Proton]

When the power is completely turned off and turned on again, this problem may temporarily disappear, but from the same address 00000A60 I can fall down here

[Vidar Berg]

Hello,

Can you upload a minimal version of your project so I can try to debug this here?

The MBRs hardfault handler is at address 0xA60 and SES adds a breakpoint there by default, but if you continue execution you should en up inside the app's fault handler.

[Proton]

app's fault handler with a transition to startup.s does not give an understanding of why this is happening

handlebug.zip

[Vidar Berg]

Seems like the fault was caused by the fact that the app attempted to log messages before initializing the logger module.  Another issue which led to an assertion inside the SAADC driver was that the SAADC configuration parameter was not zero-initialized.

Modified project:

handlebug.zip

[Proton]

Yes, thanks, it made life so much easier !! But this did not completely eliminate the problems.
When I first start it, I can wait for the drv_rtc_init () function to fire for a very long time, up to 15 seconds. When any twi device is connected, read and write functions work for a very long time.
If I stop running the program several times, I fall back to 00000A60.
Am I having something wrong with the timing initialization?