Hi,
my name is keith,
i have a question regarding chips
ok here goes,
if you had 2 microcontrollers in a circuit and both are connected to the same system in exactly the same way.. how would you turn one off an one one. at any time..
easiest way to ask this, is if there is no 5v supply to the main supply line is the chip innactive.. inother words lets say we have for arguments sake a 4 pin chip.. +5v, RC, RS, D1.
and there are two chips, both conected to
RC. RS, D1.
the only difference is that the +5v line is connected seperately (say through a relay)
now if we activate the +5 line on chip one.. and send data to it in order to progRAM THE CHIP down the RC channel. will only chip 1 recieve the data, Or will chip 2 also update.. if we send a signal to D1 (digital input) will only chip 1 pick it up, or will chip two pick it up too..
What im looking to do is to have 2 seperate chips, with two seperate functions, but have only one active at a time. can this be done..
basicallly.
to completely deactivate a chip, do you just need to remove the +5v power to it.. and it becomes dead????
cheers
bit long winded, hope i have explained..
my name is keith,
i have a question regarding chips
ok here goes,
if you had 2 microcontrollers in a circuit and both are connected to the same system in exactly the same way.. how would you turn one off an one one. at any time..
easiest way to ask this, is if there is no 5v supply to the main supply line is the chip innactive.. inother words lets say we have for arguments sake a 4 pin chip.. +5v, RC, RS, D1.
and there are two chips, both conected to
RC. RS, D1.
the only difference is that the +5v line is connected seperately (say through a relay)
now if we activate the +5 line on chip one.. and send data to it in order to progRAM THE CHIP down the RC channel. will only chip 1 recieve the data, Or will chip 2 also update.. if we send a signal to D1 (digital input) will only chip 1 pick it up, or will chip two pick it up too..
What im looking to do is to have 2 seperate chips, with two seperate functions, but have only one active at a time. can this be done..
basicallly.
to completely deactivate a chip, do you just need to remove the +5v power to it.. and it becomes dead????
cheers
bit long winded, hope i have explained..