Search found 67 matches

by kwiley
Fri May 18, 2018 5:20 pm
Forum: General Discussion and Questions
Topic: No luck with SPI
Replies: 5
Views: 794

Re: No luck with SPI

Oh, I'm rereading your response, and since you were responding to my claim that the two buses both react to changes even though only one was connected, that means you were referring to floating pins on the PyBoard, not the shield. Do you believe I need to pull additional pins on the PyBoard itself l...
by kwiley
Fri May 18, 2018 5:18 pm
Forum: General Discussion and Questions
Topic: No luck with SPI
Replies: 5
Views: 794

Re: No luck with SPI

I guess one thing I'm worried about is that any of the numerous other pins on the shield might be receiving an important signal (including pull down or pull up) from the Arduino and that I need to correspondingly adjust them before PyBoard SPI connected to just a handful of pins will work. Anyway, g...
by kwiley
Thu May 17, 2018 9:15 pm
Forum: General Discussion and Questions
Topic: No luck with SPI
Replies: 5
Views: 794

No luck with SPI

I'm trying to use a PyBoard to control an SPI Arduino shield device. An Arduino Uno successfully communicates with the device, so I know the device is working properly. I have meticulously studied both the hardware (pin assignment and voltage assignments) and the underlying code (SPI library utiliza...
by kwiley
Thu May 17, 2018 4:17 pm
Forum: General Discussion and Questions
Topic: pyb.SPI vs pyb.machine.SPI?
Replies: 4
Views: 662

Re: pyb.SPI vs pyb.machine.SPI?

Thank you. I've have had no luck with SPI communications yet. I don't know if I'm using the PyBoard SPI library incorrectly or if I'm accessing the other devices' SPI APIs incorrectly (probably the latter of course). It's driving me crazy. I2C works fine, but I've had no luck with SPI yet.
by kwiley
Wed May 16, 2018 11:02 pm
Forum: General Discussion and Questions
Topic: Version history?
Replies: 4
Views: 771

Re: Version history?

Thanks.
by kwiley
Wed May 16, 2018 9:04 pm
Forum: General Discussion and Questions
Topic: pyb.SPI vs pyb.machine.SPI?
Replies: 4
Views: 662

pyb.SPI vs pyb.machine.SPI?

The documentation has similar, but not identical, APis for SPI communication under the top pyb module and under the secondary pyb.machine module. What's the difference and what criteria determine which module I should use?

Thanks.
by kwiley
Wed May 16, 2018 6:07 pm
Forum: General Discussion and Questions
Topic: Version history?
Replies: 4
Views: 771

Version history?

I searched the forums, the FAQ, and the github docs, but didn't see a clear indication of the version history. My PyBoard appears to currently have v1.9.2 on it. Where can I find a concise list of differences in v1.9.3 and v1.9.4?

Thanks.