Service Forum

[romelik]

Hi,
I try to read my eeprom with r24rf08.
But there is a problem : Error Circuit not found or Bus error.
I've made a simple circuit and connect to SDA & SCL pin of the eeprom I take the gronud on a screw of my mother board.
My 2 resistors have the value of 2,14 Kohms and I have two Zener Diods BZX55C-5V1
When I connect my DB9 on my computer at the end of the circuit I 've the value of 0,8 Volt on SDA and 5 Volt on SCL is it correct value.
When I control on the SDA & SCL pinof the eeprom ( With my DB9 always wired on the good PC) I have the same value.

So Why I've this errors.
Thank you for your help.
Bye
PS Sorry for my english I come from France.

[bob]

When you do the itester checks, always disconnect the interface from the eeprom.

You have that error due to the interface which is wrong or due to the port. Because of the voltage, I think the diodes are mounted upside down. Anyways, we can help only if we actually see some pictures.

A bientot