Hey!
I'm trying to design a circuit that counts 1s in a 16 cell 4 bit PROM.
I have a counter that counts from 0-15 that adresses the PROM. It counts up a step for every 4th clock pulse. 4 bits per up count comes out of the PROM, goes through a parallell to serial shift reg and then into decade counters. The result should be presented in BCD.
It works all fine, until the very end. It wont count the last cell in the PROM.
Please help!
I'm trying to design a circuit that counts 1s in a 16 cell 4 bit PROM.
I have a counter that counts from 0-15 that adresses the PROM. It counts up a step for every 4th clock pulse. 4 bits per up count comes out of the PROM, goes through a parallell to serial shift reg and then into decade counters. The result should be presented in BCD.
It works all fine, until the very end. It wont count the last cell in the PROM.
Please help!