HP Prime wireless kit

09182014, 11:14 PM
Post: #65




RE: HP Prime wireless kit
Quick and dirty speedcheck on HP Prime ver A 6031 software (same gear as my prior post)
Transfer from Prime to Emu of Spreadsheet containing several 50x50 matrixes of random decimal numbers USB shows 64Byte block transfers, my 'sniffer' showed eyeball average 500us for each Transfer from Emu to Prime of same Spreadsheet containing several 50x50 matrixes of random decimal numbers USB shows 64Byte block transfers, my 'sniffer' showed eyeball average 300us for each Of course there is some handshaking before the transmission and the Prime seems to chat with the PC periodically. Not what I expected: the transfer rate is faster going to the Prime. If my math is right, those are speeds in the 1 to 2 Mb/s range like USB 1 or 1.1 The HP Prime is listed as a 00h class ("unspecified") not 03h (HID) It should be possible to extend this interface to allow communication with other devices as is done with the 410 unit. I'm sure someone more informed than I will have more information. 

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