Hi Baruch Thank you for this. I've now found this info in the reference manual - not under the watchdog section but elsewhere - under the boot modes. So now I can concentrate on why the zbarebox.bin wont run! Regards John -----Original Message----- From: Baruch Siach [mailto:baruch@xxxxxxxxxx] Sent: 28 November 2013 16:22 To: John Parker Cc: Sascha Hauer; barebox@xxxxxxxxxxxxxxxxxxx Subject: Re: FW: Barebox on Karo TX25 Hi John, On Thu, Nov 28, 2013 at 04:13:34PM +0000, John Parker wrote: > I still have a problem with barebox freezing. > > I've tried various things as you have suggested, but have not got any further. > > Issuing wd 100, followed by wd repeated every few seconds seems to > keep the system alive so it looks like the watchdog is to blame. > > According to the mx25 reference manual the watchdog is disabled until > it is enabled by setting the WDE bit. > > I can't find anything (yet) in the startup which enables the watchdog > by default? > > Does the flash header you sent me include anything which enables the > watchdog? When the i.MX25 boots using the serial protocol boot mode (either UART or USB) the watchdog gets enabled automatically. You can't disable it. baruch -- http://baruch.siach.name/blog/ ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - baruch@xxxxxxxxxx - tel: +972.2.679.5364, http://www.tkos.co.il - _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
