Part Number: msp430F5529 Hi, I am working on an application in which i am using relays to switch 4-70 V. There are two isolated ground in the PCB (one is external power supply ground(4-70V) and other is ground of 24V supply required to operate card). Now whenever relay is switched it introduces noise ( transient of ) in both grounds which make all the voltage level on card noisy including controller 3.3 V due to this some time controller just seem hanged or stuck it does not execute its while(1) instructions[ ] but executes its Timer ISR instructions. Any suggestions?
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