On Sep 8, 9:25 pm, "a.faber" <[email protected]> wrote:
> Hi Vasi
> Thanks for the feedback, maybe can add a check if the first three bytes at
> location 0x800 are set to 0xFFFFFF (i.e, when no user app is flashed), if
> so, then set wait time to inifinite
It make sense. When you burn the bootloader for first time, the rest
of flash memory is empty. Then you install the driver and after that,
it does not matter if you have already a program uploaded, your driver
is already installed. When your new bootloader will be ready, I will
remove the driver and start again from zero.
> b.t.w. if you're want to use the Python USBDownloader you have to install
> the LibUSB filter driver (on Windows), on Linux it can work right out of the
> box.
> Albert
Is ok, I know the procedure. And is ok for me to work on command line
and under Linux (until now I tested only Pinguino IDE which can upload
also the program) but I have friends which prefer Windows and an
application with graphical interface (Pdfsusb). For them I tried this
procedure from zero.
Vasi
P.S. An IDE written in python for JAL will be great... and... maybe is
useful if you add on your blogs tips for using your python uploader.
>
> ----- Original Message -----
> From: "funlw65" <[email protected]>
> To: "jallib" <[email protected]>
> Sent: Tuesday, September 08, 2009 3:59 PM
> Subject: [jallib] Re: Bootloader on 18F2550
>
> Hi Albert,
>
> Today I burned your bootloader (the one with autostart) and it was
> impossible to install the Microchip custom driver in automatic mode on
> Vista Basic. It was a weird behavior - device disconnecting/
> reconnecting at some intervals! I had to do it manual.
>
> But now is working nice on my board. I did a blink test and now I will
> test with usb-cdc driver.
>
> Vasi
>
> On Aug 11, 12:32am, "a.faber" <[email protected]> wrote:
> > Hi,
> > Just added an additional version of the USBbootloaderwith autostart. It
> > will autostart if the version number
> > is not retreived by the host application (PDFSUSB for example).
>
> > 1) Flash the bios code (I've also uploaded the hex for 18f2550 & 18f4550
> > (same hex file) in the file section of the google code group list)
> > 2) Plug in the USB connector
> > 3) When you hear the sound that the USB device is recognized, you have to
> > select the PICDEM USB 0 (boot) from the combo box in the PDFSUSB host
> > application, this will retreive the version number so to auto-start is
> > aborted)
> > 4) Flash the user application (use the standard -loader18 -no-fuse flags
> > when compiling with JALV2 compiler)
> > 5) Hit the execute button within the PDFSUSB application
>
> > 6) When you unplug the USB connector, and plug it again, it will first
> > recognize thebootloader, then wait 10 seconds and thebootloaderwill start
> > the user application.
>
> > At the moment it still a bit clumsy, but this can be greatly improved by
> > adapting the downloader application on the host side, will look into this
> > later-on (and also support for other host platforms than Windows)
>
> > Albert
>
> > ----- Original Message -----
> > From: "funlw65" <[email protected]>
> > To: "jallib" <[email protected]>
> > Sent: Sunday, August 09, 2009 7:51 PM
> > Subject: [jallib] Re:Bootloaderon 18F2550
>
> > > For 18F2550 I'm interested inbootloaderused for 18f14k50 but without
> > > the need of start button (autorun after 5 seconds by example).
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