Read And Write Times

Device	512k Read	1mb Read	96kb Calibration Write	512k Write	1mb write
ObdLink SX	30:00	?:??	4:15	expect over an hour
ObdLink LX	11:20	?:??	2:40	expect 30 minutes	14:50
AllPro	4:38	?:??	1:33	4:51	?:??
AVT	?:??	?:??	?:??	???
Xpro, Bluetooth	?:??	5:17	0:37	?:??
XPro, USB	2:12	4:25	1:40, was 1:00, was 0:32 [1]	?:??	6:12

All times are MM:SS. And they're approximate. And some of them are from my memory, which might be faulty.

Note that 1mb chips have the calibration spread across two blocks, so if you only change one of them, that will cut the calibration write time roughly in half.

?:?? means that I haven't tried it (I don't own an AVT) or haven't tried it since retuning the app's timeouts (which made a huge difference) or I did try it but I didn't take notes.

[1] CRC slowdown might be part of the problem, but there must be more to it than that.