Yep, if you're trying to bit-bang the SPI then you are definitely re-inventing the wheel. Look at Arduino "sketches" for other SPI devices and see how they do it there. I don't have any arduino experience so I can't be of much help either, but I've used the SPI port on the AVR many many many times and it's a breeze.
-Adam On Sat, Mar 31, 2012 at 4:48 PM, David Forbes <[email protected]> wrote: > On 3/31/12 3:28 PM, Dylan Distasio wrote: > >> Hi all- >> >> I've been circling back to the nixie clock project I am working on that >> starts with a base kit of 6 IN-14s each with their own module that >> contains a PCB with a 74141 on it. I have never used shift registers >> before, but finally got around to some initial experiments driving one >> 74HC595 with an Arduino connected to one set of 74141 inputs (ABCD) to >> keep things simple. I was able to get the different digits lit up based >> on my code, but am wondering if I am missing something in terms of ease >> of use here. >> >> Thanks, >> Dylan >> > > Dylan, > > A clever programmer will figure out how to use the Arduino's SPI port with > the 74HC595s to eliminate all the software work of banging out the bits. > I've never used an Arduino, so I don't know how it's done. I've used this > chip with the PIC SPI port, and it works. > > > -- > David Forbes, Tucson AZ > > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To post to this group, send an email to [email protected]. > To unsubscribe from this group, send email to neonixie-l+unsubscribe@** > googlegroups.com <neonixie-l%[email protected]>. > For more options, visit this group at http://groups.google.com/** > group/neonixie-l?hl=en-GB<http://groups.google.com/group/neonixie-l?hl=en-GB> > . > > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
