WDOG problem

cancel
Showing results for 
Search instead for 
Did you mean: 

WDOG problem

275 Views
fabio_poiatti
Contributor III

I'm debugging WDOG circuit coming from the EVK for IMX6ULL.

I tried to read the register WDOG1_WCR but with bus error

/unit_tests# ./memtoool 0x20bc000 1
Reading 0x1 count starting at adUnhandled fault: external abort on non-linefetch (0x1008) at 00
pgd = 88718000
[76f63000] *pgd=88c4f835, *pte=020bc703, *ppte=020bce33
dress 0x020BC000

Bus error

Why???

Do you have an examples about how WDOG works?

thanks

0 Kudos
3 Replies

216 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi Fabio

one can check if wdog clocks are enabled in CCM_CCGR3 register,

for testing one can try unit tests:

wdog\test - imx-test - i.MX Driver Test Application Software 

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

0 Kudos

216 Views
fabio_poiatti
Contributor III

the clock in CCN_CCGR3 is correctly enabled

the test you indicated die :-(

it is not able to access to register 0x21cc000 ... it blocks

Any other suggestion?

Thanks

0 Kudos

216 Views
igorpadykov
NXP TechSupport
NXP TechSupport

unit tests should work fine with nxp linux releases from

source.codeaurora.org/external/imx/linux-imx  repository
linux-imx - i.MX Linux kernel 

So suggest try them or Demo Images from

i.MX Software and Development Tools | NXP 

Best regards
igor

0 Kudos