Re: [opencbm-user] Building an XU1541 for the first time, firmware problem

[Spiro T. <cb...@tr...>]

Hello Richard,

* On Fri, Oct 06, 2017 at 10:18:22PM +0200 Richard Maudsley wrote:
 
> Where I am now is that I've successfully built the circuit using the
> shopping basket provied. This was more difficult than I was expecting
> because the Circuit diagram provided is weird and puts the pins on
> everything in the wrong place. It also has the LED's negative lead to
> VCC and it's positive through a resistor to microcontroller pin 3,
> which naturally does absolutely nothing.

Can you be more precise what you mean here?

> Right now I've successfully flashed bootldr-usbtiny.hex using avrdude
> and a usbasp. However I can't figure out where to go next. The only
> instructions provided on the page is "Use the upload tool with latest
> firmware: make update-firmware". But there is no file called
> "update-firmware" to make in any directory.

"make update-firmware" is a command that you have to enter on the
command-line. It will not work on Windows, though, if you do not install
some additional tools (like Cygwin, and GNU Make inside of it).

> I did find a program called xu1541_update.exe in a folder called
> update_tool, but all that does is give error (0xc000007b).

Ok, this error tells me you are using Windows. Before update_tool can
work, you need to install the drivers for the device. Plug in the xu1541
device. When Windows asks you for the drivers, point it to the directory
windrv/ where the drivers are located.

After this, update_tool.exe should work without that error code.
All the make command above does is to perform the equivalent of the
following action:

update_tool\xu1541_update firmware\firmware.hex

That is, it call xu1541_update.exe in the directory update_tool with the
only command line argument of firmware\firmware.hex

Regards,
Spiro.

-- 
Spiro R. Trikaliotis
http://www.trikaliotis.net/