[PIC]Microchip USB development kit
cdb
the touch pad sensors leave a lot to be desired in terms of
sensitivity. I'm not sure whose anatomy they used for the touch sensor
size, but I think I need to have hamster size fingers to use them
easily.
It will not recognise any of my USB flash drives, my 256MB is reported
as 'Connected to Hub' and that is all, my dodgy 8GB is just not
recognised.
To cap it all, without thinking I opened up MPLAB which promptly
erased the demo program.
Gives me a chance to look at the firmware I suppose and work out why
it doesn't like my flash drives before reprogramming the board.
Colin
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cdb, on 25/10/2008
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Xiaofan Chen
> Well I'm not impressed with Pic24 starter kit. Even after calibration
> the touch pad sensors leave a lot to be desired in terms of
> sensitivity. I'm not sure whose anatomy they used for the touch sensor
> size, but I think I need to have hamster size fingers to use them
> easily.
>
> It will not recognise any of my USB flash drives, my 256MB is reported
> as 'Connected to Hub' and that is all, my dodgy 8GB is just not
> recognised.
I do not think it supports 8GB card. Some of the flash
drive does enumerate as a hub and I think that is the case
of your 256MB card. So in that case, it is not supported.
Corsair Flash Voyager is one example of the flash drive
which enumerates as a hub first. If you can read the
dmesg output of Linux, you will know this.
http://ubuntuforums.org/showthread.php?t=564568
Xiaofan
Xiaofan Chen
> erased the demo program.
>
> Gives me a chance to look at the firmware I suppose and work out why
> it doesn't like my flash drives before reprogramming the board.
>
I do not have the board but I believe Microchip will provide the
demo program's source and hex file with the boards. You
can always reprogram the demo hex file.
On the other hand, Microchip's USB stack has improved
dramatically, still it has a lot of room for improvement as well.
For example, the host stack supports HID keyboard but
not USB composite device. Yet many multimedia keyboards
are USB composite device.
http://forum.microchip.com/tm.aspx?m=364987
You can add your input here:
Wishlist for Microchip USB
http://forum.microchip.com/tm.aspx?m=370134
Xiaofan
Xiaofan Chen
>> It will not recognise any of my USB flash drives, my 256MB is reported
>> as 'Connected to Hub' and that is all, my dodgy 8GB is just not
>> recognised.
>
> I do not think it supports 8GB card. Some of the flash
> drive does enumerate as a hub and I think that is the case
> of your 256MB card. So in that case, it is not supported.
>
> Corsair Flash Voyager is one example of the flash drive
> which enumerates as a hub first. If you can read the
> dmesg output of Linux, you will know this.
> http://ubuntuforums.org/showthread.php?t=564568
Here is the confirmation about this.
https://www.usb.org/phpbb/viewtopic.php?t=14129
Xiaofan Chen
>> as 'Connected to Hub' and that is all, my dodgy 8GB is just not
>> recognised.
>
> I do not think it supports 8GB card. Some of the flash
> drive does enumerate as a hub and I think that is the case
> of your 256MB card. So in that case, it is not supported.
>
> Corsair Flash Voyager is one example of the flash drive
> which enumerates as a hub first. If you can read the
> dmesg output of Linux, you will know this.
> http://ubuntuforums.org/showthread.php?t=564568
Here is the confirmation about this.
https://www.usb.org/phpbb/viewtopic.php?t=14129
Xiaofan
cdb
I never realised that a flash drive might identify itself as a hub.
I've already reloaded the firmware, I just hadn't quite expected MPLAB
to auto erase the firmware.
Colin
--
cdb, co...@btech-online.co.uk on 26/10/2008
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