µTasker Forum

µTasker Forum => NXPTM M522XX, KINETIS and i.MX RT => Topic started by: neil on September 24, 2009, 09:05:07 AM

Title: External watchdog on 52233
Post by: neil on September 24, 2009, 09:05:07 AM
Hi Mark,
  I am planning to use the 52233 for  a project and wish to use an external watchdog chip. I am planning to connect the input pulse pin from the pin that is toggled during watchog task. But during bootloader, will is there a similar output pin set up to toggle?

Regards
Neil

Title: Re: External watchdog on 52233
Post by: mark on September 24, 2009, 09:49:45 AM
Hi Neil

The boot loader doesn't control any outputs.

If the watchdog timeout is shorter than the maximum boot loader time you could add a port toggle in routines such as when FLASH is erased and/or when Flash is programmed. The programming generally takes place in blocks and so each block write may be a good place to add this.

Regards

Mark