Re: usb_8dev: firmware and windows library

[Gediminas Simanskis <gediminas@8devices.com>]

I still not decided yet.


> Hi!
>
>
> Thank you for the fast response.
>
> Protection against disassembling?
> Is it possible to get the key?
>
>
> regards,
> Bernd
>
>
> Am 2014-01-26 10:22, schrieb Gediminas Simanskis:
>> Hello,
>>
>> binary image must be encrypted in RC4 format with 40 bit key before 
>> making DFU file.
>>
>> Gediminas
>>
>>> Hi!
>>>
>>>
>>> I tried to build my own firmware for the microcontroller with GNU 
>>> Toolchain.
>>> I was able to build, but it doesn't work.
>>> Sadly I'm not able to debug.
>>>
>>>
>>> Maybe someone has an idea?
>>>
>>>
>>> CAUTION: You can brick your hardware, if you accidentally overwrite 
>>> the bootloader!
>>>
>>> If you work careful you can easily flash back to original firmware.
>>>
>>>
>>>
>>> Setup project and build project:
>>> 1. Download GNU Toolchain for ARM 
>>> (https://launchpad.net/gcc-arm-embedded)
>>> 2. Unpack into /opt
>>> 3. Set Path: "export PATH=/opt/gcc-arm-none-eabi-4_8-2013q4/bin/:$PATH"
>>> 4. Unpack gccstartup.tar.gz
>>> 5. execute "make"
>>>
>>>
>>> Convert bin file to dfu file:
>>> 1. Download dfu-20101118.tgz from 
>>> http://www.seeedstudio.com/forum/viewtopic.php?p=4504#p4504
>>> 2. Unpack wherever you want
>>> 3. execute "python dfu.py -b 0x20006000:main.bin main.dfu"
>>>
>>>
>>> Flash to device:
>>> https://github.com/krumboeck/usb2can_firmware#flash-the-device-linux-experimental 
>>>
>>>
>>>
>>> What it should do (but does not work):
>>> * Simple startup for C language
>>> * Turn on the red led
>>>
>>>
>>> Attached files:
>>> gccstartup.tar.gz   --- Project source
>>> main.bin            --- Binary output for flashing
>>> main.map            --- Linker Mapping file
>>>
>>>
>>> Some last thoughts:
>>> * The memory map from Gediminas contains a .checksum section. Maybe 
>>> the bootloader do some checks?
>>> * Maybe the binary file is ok, but the dfu file is not compatible?
>>>
>>>
>>>
>>> regards,
>>> Bernd
>>>
>>>
>>>
>>> Am 2014-01-25 17:55, schrieb Oliver Hartkopp:
>>>> Hello Brennan,
>>>>
>>>> a packet from Germany to the US is about 16 EUR with DHL and 60EUR 
>>>> with UPS??
>>>> Maybe I missed anything with the UPS Website while trying to get 
>>>> some shipping
>>>> costs %-]
>>>>
>>>> Btw. with all the customs stuff it looks pretty pointless to sent 
>>>> this adapter
>>>> to you from Germany and back again :-(
>>>>
>>>> I know some guys in the US that bought some of these adapters last 
>>>> year.
>>>> I'll try to contact them on Monday if it's possible to lend you one 
>>>> of the
>>>> adapters and ship it inside the US.
>>>>
>>>> Regards,
>>>> Oliver
>>>>
>>>> On 25.01.2014 16:55, Brennan Ashton wrote:
>>>>> Bernd,
>>>>> Assuming it's not coming from the Arctic Circle or something I 
>>>>> have no
>>>>> problem covering the cost of shipping. Just shoot me a private email
>>>>> with how much shipping is and how to get the funds to you.
>>>>>
>>>>> --Brennan
>>>>>
>>>>> On 1/25/14, Bernd Krumboeck <krumboeck@universalnet.at> wrote:
>>>>>> I could lend, but the delivery costs would eat my pocket. ;-)
>>>>>>
>>>>>> Maybe I could find some time in the next days.
>>>>>> Are you willing to assist by mail?
>>>>>>
>>>>>>
>>>>>> regards,
>>>>>> Bernd
>>>>>>
>>>>>>
>>>>>>
>>>>>> Am 2014-01-25 09:29, schrieb Brennan Ashton:
>>>>>>> If there is interest and someone can lend me one of these for a 
>>>>>>> bit of
>>>>>>> time I'm sure I could get this ported over to the GCC arm tool 
>>>>>>> chain.
>>>>>>> I have done a few IAR to GCC ports and besides a few tricks they
>>>>>>> usually are not too bad.
>>>>>>>
>>>>>>> --Brennan Ashton
>>>>>>>
>>>>>>> On 1/24/14, Bernd Krumboeck <krumboeck@universalnet.at> wrote:
>>>>>>>> Hi!
>>>>>>>>
>>>>>>>>
>>>>>>>> Source code from firmware v1.5:
>>>>>>>> https://github.com/krumboeck/usb2can_firmware
>>>>>>>>
>>>>>>>>
>>>>>>>> After some experiments I was able to flash the firmware with 
>>>>>>>> dfu-util
>>>>>>>> under
>>>>>>>> linux:
>>>>>>>> https://github.com/krumboeck/usb2can_firmware#flash-the-device-linux-experimental 
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> Sadly I don't know the way how to build the firmware with a 
>>>>>>>> free tools
>>>>>>>> chain.
>>>>>>>>
>>>>>>>>
>>>>>>>> regards,
>>>>>>>> Bernd
>>>>>>>>
>>>>>>>>
>>>>>>>> Am 2014-01-22 15:46, schrieb Marc Kleine-Budde:
>>>>>>>>> On 01/22/2014 01:58 PM, Bernd Krumboeck wrote:
>>>>>>>>>> May I kindly ask you to send me a diff/patch about the 
>>>>>>>>>> changes, so I
>>>>>>>>>> can
>>>>>>>>>> update the firmware sources on github.
>>>>>>>>>
>>>>>>>>> A complete new set of sources will do, too. Git will create 
>>>>>>>>> the diff
>>>>>>>>> for
>>>>>>>>> you. :)
>>>>>>>>>
>>>>>>>>> Marc
>>>>>>>>>
>>>>>>
>>
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