24c04 Reading in circuit

[keybid92]

Hello,

I am able to read 24C04 in circuit with Tmpro2 reader but can't read with Revelprog with exactly the same connections (and i try on a chip 24c04 unsoldered , it is ok to read).
Any idea of where the problem could come ?

Olivier

[ArT]

Hi Olivier, how about overcurrent? (you can not exceed 100mA). What error do you have? What addressing are you using? (24xx addressing can be changed during memory selection). Does Tmpro2 power supply memory only during reading or immadiately after connection?