premkumar9
Member
Hi,
I have developed a unit based on 89S52 uC. It is used for pumping control and installed in a noisy (electrical noise) environment. In the last two months 4 OR 5 times it hanged with all pins high. It seems that it require some methods to removes spikes in Vcc supply. Since the unit is already installed in the site, there are some limitations on the possible modifications.
Can anybody please suggest some practical methods? Is there any device to arrest spikes(special diodes etc.) which I can add to my circuit as a temporary solution?
I have developed a unit based on 89S52 uC. It is used for pumping control and installed in a noisy (electrical noise) environment. In the last two months 4 OR 5 times it hanged with all pins high. It seems that it require some methods to removes spikes in Vcc supply. Since the unit is already installed in the site, there are some limitations on the possible modifications.
Can anybody please suggest some practical methods? Is there any device to arrest spikes(special diodes etc.) which I can add to my circuit as a temporary solution?