Service Forum

[harshbarj]

I built the SIPROG reader and connected it to my thinkpad but the software still says it can't find the eeprom. I ran itester and it shows both in and out matching perfectly (I assume that's good as disconnecting the reader results in in showing 0 and out alternating between 1 and 0.).

The wires are solidly on the atmel chip and ground is screwed onto the vga port. I simply twisted everything together and used a d-sub connector from radio shack. I have triple checked my wiring and the whole thing from the pc to the chip is about a foot long.

The pc is a 1ghz dell p3 running windows xp. It has but one serial port that is working (tested with a serial mouse).

Thanks!


---edit---

I tested the reader with a multi meter and both in and out lines move between -.77v (both at 0 in itester) to 4.72 (both at 1 in itester).

[victor]

Hi,

I can only help if I see some photos. I need to see the interface, the eeprom connections, the serial port connector, etc. - in details.
_________________
Victor Voinea
ALLservice HQ, Romania.

[harshbarj]

www.aofw.co.uk/images/DSCN4169.JPG

The yellow wire is SCL
The red is SDA
The black is ground

I used a multi meter to test that the serial port was good and that all connections were solid.

www.aofw.co.uk/images/DSCN4171.jpg
Another closer picture of the components.


www.aofw.co.uk/images/DSCN4172.jpg



The white wire is on SCL
the bare wire is on SDA
Ground is not pictured but is connected to the vga port via a screw. Proper ground is verified with good conductivity with every ground point I tried on the motherboard.

I use a similar low budget setup to program atmel tiny chips with no problems on the same computer.

[harshbarj]

Any ideas what could be wrong??