Objective Development Forums

I'm using a 12 MHz oscillator (not a crystal but a self-contained unit), so I didn't set a CPU frequency. You do need to set the correct CPU-frequency, no matter from where you get your clock, so the V-USB-code can select the assembler-code matching your frequency. You also must set the clock-fuses...

It might be possible to implement an automatic calibration like the one used on ATtinys (e.g. in the EasyLogger example), but as I'm currently planning to build only one or two ATmega-based USB "projects", manual calibration seemed sufficient and I did no further research about how to comp...

In most cases, it should be sufficient to connect ⋅ D- with +5V over a 2,2kOhm resistor ⋅ D- with the I/O-Pin you chose in usbconfig.h over a 470 Ohm resistor ⋅ D+ with INT0 and the I/O-Pin you chose in usbconfig.h (usually INT0) over a 470 Ohm resistor (According to th...

Although it was written in here quite often that one cannot run V-USB on an ATmega without using a crystal, i have tried to overclock an ATmega8 to 12.8MHz and use it as an HID. I tried different OSCCAL-values and found out that 0xEF (239) results in a clock frequency of 12.700MHz at 5V, while 0xF0 ...

Ok, I finally figured it out to feed HID_DATA from Delphi. The JvHidController component works great. If anybody would like the Pascal code, contact me. Tom Could you please upload your source somewhere or send it to nrsend-delphihiddata[at]yahoo[dot]de? I spent the whole day trying different Delph...