18F26J50 and 18F26K53 as Hosts?


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    Prolific Poster towlerg's Avatar
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    Default 18F26J50 and 18F26K53 as Hosts?

    In the webpage here for appnote AN1212 "Using USB Keyboard with an Embedded Host" I see that 18F26J50 and 18F26J53 are listed as applicable Pic devices but nothing in either datasheet would indicate that those devices were Host (as opposed to Device) capable. Is this just an error or is there some explanation? Anyone?
    George.

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    Senior Member tumbleweed's Avatar
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    Default Re: 18F26J50 and 18F26K53 as Hosts?

    None of the 18F's can be a USB host.. they would need to at least have USB OTG hardware, and they don't.

    Perhaps they mean that the J50 and J53 can be used as the USB keyboard device.

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    Prolific Poster hadv215's Avatar
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    Default Re: 18F26J50 and 18F26K53 as Hosts?

    They can of course function as a HID

    But why do you want to use a keyboard as a HOST?

    Regards, Harm
    Last edited by hadv215; 21st March 2019 at 18:19.

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    Prolific Poster towlerg's Avatar
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    Default Re: 18F26J50 and 18F26K53 as Hosts?

    If you look at the app note you see it describes the use of a USB keyboard by a Pic device.
    George.

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    Prolific Poster charliecoultas's Avatar
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    Default Re: 18F26J50 and 18F26K53 as Hosts?

    If the keyboard is the USB "slave", then the PIC they are talking about must be a Host. It looks to me that the app note says these devices can act as Hosts and thus control the keyboard.

    I bought a little gadget which converts a USB keyboard to two SPI signals, clock and data, works a treat and it costs the same as half a pint of beer.

    But also see this: https://www.microchip.com/forums/m645727.aspx

    Where did you see 18F26J50 and 18F46J50?
    Last edited by charliecoultas; 21st March 2019 at 21:35.

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    Prolific Poster towlerg's Avatar
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    Default Re: 18F26J50 and 18F26K53 as Hosts?

    If you go to the webpage I gave in Post #1 you see in the listed and click on silicom products (which takes ages to "come up") you'll see a whole bunch of J50 and J53 devices. But the mc forum post is unequivocal.
    Last edited by towlerg; 22nd March 2019 at 14:17.
    George.

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