When I attempt to acquire inputs from two cascaded NXP 74HC597 shift registers, all I get is nulls. I wrote a routine to generate effectively the same purpose that I can adjust the periods. With a slowed clock rate the 597's work correctly. While monitoring the chain's SData line I see the data shif…

Modifying the clock rate for shiftin()

ajofscott September 11, 2016, 3:01pm 6

The 74LS374's in the schematic are being emulated by the storage register in the 74LS597's.

Topic		Replies	Views
shiftIn usage Programming	9	1987	May 5, 2021
TPIC6A595 Shift Register problems? Interfacing	21	6714	May 6, 2021
[risolto] problema concatenare shiftin Generale	13	4038	May 7, 2021
shiftIn&Out functions Programming	4	1003	May 5, 2021
Shift Register 595 Library General Electronics	19	10679	May 6, 2021