I have following problem with AVR ISP software : when I want to program the device (AT90S4434), I need to disable signature check. If not, it does not work.
As a consequence (I presume), I am not able to program the lock bits and the program can be read from the device.
Does anybody know this problem ?
My configuration : Processor Intel Pentium II 233 MHz, Win95, AVR ISP version 2.65
Thanks in advance,