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1
USB / Re: Install a new Windows HID in less than five seconds?
« Last post by Jan Axelson on June 22, 2017, 10:37:33 am »
Worth a try I guess if for your own use only and at your own risk. Find something similar and emulate it in the registry.
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USB / Re: USB Device reset
« Last post by Jan Axelson on June 22, 2017, 10:35:59 am »
Some related discussions here:

http://janaxelson.com/forum/index.php?topic=1351

http://janaxelson.com/forum/index.php?topic=293

http://janaxelson.com/forum/index.php?topic=1484
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USB / Re: Install a new Windows HID in less than five seconds?
« Last post by bpaddock on June 22, 2017, 08:20:47 am »
It is actually the install process that needs bypassed. 
Once the device would be installed it would work fine.

I've looked through the registry at nearly identical devices.
Seems there should be a way to copy one of those, only changing the VID/PID/Port?
However I see the VID/PIDs in more than one place.

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USB / Re: USB Device reset
« Last post by Harish on June 22, 2017, 06:36:04 am »
Hi Jan,

In TEST Unit ready, if a new file is written then I send bCSWStatus as 1 it means failed.
Then host sends REQUEST SENSE command,
It is replied with
Sense->errCode       =   0x70;
Sense->senseKey      =    0x06;
Sense->addSenseLength    =    10;
Sense->addSenseCode    =    0x28;
Sense->addSenseCode   =    0;

After this is sent, bCSWStatus=0 is sent to acknowledge

Here are the observations
1. files needs a refreshing
2. it takes more time in windows
3. very slow and sometimes hangs or nothing is changing in Linux.
4. medium removal command is executed

Is anything missing above or not correct, please let me know.
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USB / Re: Install a new Windows HID in less than five seconds?
« Last post by Jan Axelson on June 21, 2017, 11:37:36 am »
I don't know of any way to bypass enumeration.
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USB / Re: Install a new Windows HID in less than five seconds?
« Last post by bpaddock on June 20, 2017, 04:16:44 pm »
Sadly no, as the bootloader is in ROM in the KL27.

Any way to add a HID device via the registry?

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USB / Re: Install a new Windows HID in less than five seconds?
« Last post by Jan Axelson on June 20, 2017, 12:14:07 pm »
It sounds like the bootloader should wait until completing a Set Configuration request, indicating that enumeration is complete, before waiting for commands. Not sure if that is of any help to you though...
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USB / Re: simple way to send raw HID data via c#
« Last post by Jan Axelson on June 19, 2017, 10:08:54 pm »
Thanks for reporting what worked for you!
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USB / Re: simple way to send raw HID data via c#
« Last post by ulao on June 17, 2017, 06:09:47 pm »
I decided to try the HIDInterface project and that worked out just fine.
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USB / Install a new Windows HID in less than five seconds?
« Last post by bpaddock on June 16, 2017, 04:07:00 pm »
Working on a new bootloader for a NXP Kinetis part with a custom VID/PID.
The default ROM bootloader uses 0x15A2/0x0073, I'll say mine uses 0xDEAD 0xBEEF here.

I loaded the new firmware image via 0x15A/0x0073 with the NXP program BLHOST.
Once the unit was reset windows saw the devices as a new 0xDEAD/0xBEEF unit as expected.

Sadly I did not account for how slow Windoze is when installing a new driver. 

The bootloader only waits for five seconds for any bootloader commands to come in,
which can't happen because Windows has not yet installed the 0xDEAD/0xBEEF HID driver.
After five seconds Windows says "Device Unplugged" while the driver was being installed.

Now I have a device that I can not communicate with because Windoze did not complete the 0xDEAD/0xBEEF install.

Any suggestions, beyond opening the case and using JTAG (case is a pain due to being water resistant), on how to fix this chicken & egg problem?

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