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[HP 39gII] USB product ID?
09-22-2015, 01:20 PM (This post was last modified: 09-22-2015 01:28 PM by Tim Wessman.)
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RE: [HP 39gII] USB product ID?
(09-22-2015 12:00 PM)matthiaspaul Wrote:  This post confirms that the Bluetooth modules actually use the USB protocol to talk to the Prime:

Not bluetooth. The wireless antenna/dongle use a nordic chip in the ~2.4ghz range. The chip presents itself to as an hid usb 1.1 device. Communication to the dongle is through a 64 byte packet. The RF layer is basically serial between the chips, but that is all handled by the silicon (error correction, retry, etc). Those have a maximum size of 32 bytes, so messages get assembled/disassembled during transmission.

u32 const vidpid[] = { 0x1F0C2000, 0x03f00441, 0x03f01541, 0x03f00741, 0x19150101 }; // Streamer, Prime, NewPrime, RF Antennae, Dongle Updater

First is the current ss410, then a prime with the old pid, then a prime with the new pid (we had to change this as it caused problems when switching from hid to mass storage on usb 3.0 for updating - windows didn't recognize as a new device because the vid/pid didn't change even through the device profile did), then the antenna/dongle, then an updater mode for the dongle (not ever used yet)

TW

Although I work for HP, the views and opinions I post here are my own.
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Messages In This Thread
[HP 39gII] USB product ID? - matthiaspaul - 09-20-2015, 04:47 PM
RE: [HP 39gII] USB product ID? - BruceH - 09-21-2015, 10:52 PM
RE: [HP 39gII] USB product ID? - BruceH - 09-28-2015, 04:58 PM
RE: [HP 39gII] USB product ID? - debrouxl - 09-22-2015, 06:03 AM
RE: [HP 39gII] USB product ID? - Tim Wessman - 09-22-2015 01:20 PM



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