| ??? 06/01/08 17:53 Modified: 06/01/08 17:55 Read: times |
#155356 - I wanted to focus on something different Responding to: ???'s previous message |
Jan said:
I don't think I would not know how the watchdog I would use works. Jan, this should not be an offense, not at all. I have deep respect for your work. I only wanted to focuse on the fact, that when EMI is so high (unsupressed) that it makes the micro stop, why should the same EMI have no inluence on the watchdog either?? Means, also the performance of watchdog can be badly affected by the EMI that makes the micro stop. Jan said:
You, as a proud engineer, would undoubtedly do everything possible to achieve this. I'm physicist, not engineer. So, I might be a bit more paranoid than an engineer. Jan said:
But, remember, engineering is a balancing act, and you should never over-engineer your product. Why not? If I design a product that costs the customer 5000Euro, then this product must be able to do more than fullfilling the CE standards. Then the custormer expects a product that is absolutely stable. So, our products fullfill even a much higher standard than CE legislation demands. Jan said:
if you make it an order of magnitude more resilient at a cost an order of magnitude higher than a less resilient design would cost, you might very easily got out of that particular business. Surprise: The additional costs for adequate filtering is mostly entirely negligible. SMD ferrite beads cost 2cents. A special mechanics, optics or housing can be myriads more expensive. Kai |
