I'd constructed the AS*M Kh*n ISP circuitry. When i try to read the µC, the program show a msg as "Device signature mismatch". Even when i try to press the signature button, msg of "no responce from µC" is shown? Do anyone know how to solve this?
I'm using ECP mode of LPT1 under window XP. Wat procedure I should take to chg the ECP to normal mode? Is the 4Mhz crystal in the schematic has to be connected to the GND? ....................Need ur help!
For AS*M Kh*n ISP circuitry. Is there any configuration needed to be done before using its program. It keep showing "Device signature mismatch"and "no responce from µC". Can anyone help me on this? Please give ur opinion.
You can change the mode through BIOS settings during boot-up.
Since you are using WIN-XP, problem may be the OS also. Parallel port access in XP is different than Win-95-98. Check whether ISP software supports XP or not.