Hi all,
I have a X301T Box and I definitely will try the stepps described in the how to PDF. All of the lines there and here in the forum are amazing and I am enjoing the reading too. But unfortunately some of the infos provided are very inaccurate for me.
I have gone that far, that I bought a ATMEGA8 chip, which may be somewhere on the way to my address
Reading the how to is really self explaining but i experience problems understanding the lines at this point "Install the modchip (soldering required)".
At this point I should have 4 (actually 5 according to the "Simplified AVR ISP Programmer" picture) cables raging out of the LPT port. They should be connected to the AVR chip, hm, is this the ATMEGA8? Or is it another chip located somewhere inside the box? Well i guessed it is ATMEGA8.
I have to solder the 4 cables directly to the feet of the chip. Well next problem is, that according to the picture of the simplified programmer, there are no cable numbers (like JTAG pin 3, 9, 7 or 5) but their names are MISO, RESET, MOSI, SCK, hm... If i would trace them back to the LPT port, the pin numbers would be 6, 7, 9 and 10.
Where do the 4 cables from the Programmer actually have to lead to? ATMEGA chip or JTAG Port? This is quite missleading "Connect the 4 wires to the JTAG port." as in the detailed description the JTAG pins have to be connected with the ATMEGA feet.
By the way, where do I connect the extra 5V power supply? which pins?
Obviously I am missing some point. Thus I started to draw some basic scheme. I d be very thankfull if somebody could fill in the missing parts
And please dont laugh at my artistic skills....