daver2
10k Member
Use channel 1 of your oscilloscope to monitor the /CAS0 pin of the 'I' bank of DRAM.
You should observe four (4) low pulses occurring between every two (2) pulses of UD8 pin 20 (channel 2 of your oscilloscope).
If this is correct, align your existing marks on your piece of paper with the UD8 pin 20 pulses and mark the /CAS0 pulses on the paper in a different colour pen.
Old schooling it here!
Dave
You should observe four (4) low pulses occurring between every two (2) pulses of UD8 pin 20 (channel 2 of your oscilloscope).
If this is correct, align your existing marks on your piece of paper with the UD8 pin 20 pulses and mark the /CAS0 pulses on the paper in a different colour pen.
Old schooling it here!
Dave