committing I don't know
experimenting with GUI dynamic data
get serial data convert to byte array, and display in graphics window
commit
commit basic serial command test project
Commit:	Ability to send multiple character commands e.g. "r3"
Now sends command "r3", which sets the reference to internal.

Problem 1:
			intermittent "Segmentation fault: 11", on waveform retrieval.
mba:git hitchcme$ /Users/hitchcme/Library/Developer/Xcode/DerivedData/GirinoScope-ebxocfdqyiuyukddaaqoxcnpyriz/Build/Products/Debug/GirinoScope /dev/cu.usbmodem1421
fd: 3
Girino ready
y
Setting voltage reference to: 3
>c??
Segmentation fault: 11

Problem 2:
			when not "Segmentation fault: 11", feedback only says, "Buffer size"

mba:git hitchcme$ /Users/hitchcme/Library/Developer/Xcode/DerivedData/GirinoScope-ebxocfdqyiuyukddaaqoxcnpyriz/Build/Products/Debug/GirinoScope /dev/tty.usbmodem1421
fd: 3
Girino ready
y
Setting voltage reference to: 3
>c??
Buffer Size:   1280
Baud Rate:     115200
Wait Duration: 1248
Prescaler:     128
Trigger:       3
Threshold:     127
Buffer size
Better Interface with cocoa/openGL, not quite as good or as easy as lab view