Post by thread:Having trouble determining the cause of wake-up fr

I have an application where I want to put my PIC into sleep mode and awaken on a toggle of the INT pin. When I run my code without the watchdog timer, my code works fine. When I chose to enable the watchdog timer, I added a few lines of code to determine the cause of the wakeup, if it was due to the watchdog timeout, I would simply put the processor back to sleep. To check this, I followed the instructions in the manual. I am using the 16c74. Here is my code A Sleep NOP ; 1st instruction after sleep BTFSS STATUS,4 ; Was the wakeup caused by a watchog timeout? goto A ; go back to sleep ; stay awake continue....... This did not work, the processor simply would not come out of sleep mode when I toggle the INT pin. But like I said before this worked perfectly without the watch dog timer. I would appreciate any advice. Also just curious, if I set the prescaler to the WDT to lengthen the period before the WDT timeouts wake the processer, would I save that much in current consumption. Right now my PIC uses about 400uA in sleep mode. Just curious if this is normal. Neil Gandler