magnustullock
New Member
Hi,
I have an 18M2 with a script which has run successfully in the past. HOwever, after not looking at it for a number of years I think I may have fried my chip and wondered if anyone could advise?
the 18M2 chip has b.0 to b.7 as output, c.0, c.1 and c.06 and c.07 as output
c.4 is input with an interrupt on high
c.5 is input with an interrupt on low
I could not understand why my script was not working until I realised my interrupt on low was did not have an input as default. I then stupidly connected my c.5 to a 9V input and not the 5V from the voltage regulator I use to drive the chip. Now the chip does not see an interrupt at all on c.5 (output pins still seem work). will the 9V have damaged the input pin?
thanks
Magnus
I have an 18M2 with a script which has run successfully in the past. HOwever, after not looking at it for a number of years I think I may have fried my chip and wondered if anyone could advise?
the 18M2 chip has b.0 to b.7 as output, c.0, c.1 and c.06 and c.07 as output
c.4 is input with an interrupt on high
c.5 is input with an interrupt on low
I could not understand why my script was not working until I realised my interrupt on low was did not have an input as default. I then stupidly connected my c.5 to a 9V input and not the 5V from the voltage regulator I use to drive the chip. Now the chip does not see an interrupt at all on c.5 (output pins still seem work). will the 9V have damaged the input pin?
thanks
Magnus