| ??? 02/21/07 14:43 Read: times |
#133431 - prevent problems Responding to: ???'s previous message |
Hendryawan said:
Dear Patrick,
I need some input from everybody about my experiment. Last week I made four pcs small project. One of them have problem. So I do experiment. I check every equipment with relay to shorted in power supply line. The result only one hung. I change the uC, test again and the result circuit not hung. any comment? thank Experimenting is great, but what you should have done, is modify your circuit to protect your microcontroller from failing. Not test if it would happen with every microcontroller... That proves very little in my humble opinion... Make a fail-safe design that prevents evil things from happening. There is little use in "torturing" various microcontrollers to only prove that some can stand it and others can't, whether by mere coincidence or variability in the production process... Not to speak of the fact that manually flicking a switch as fast as possible is not really an input parameter to an experiment. regards Patrick |
