i rote code for weigh scale the code is working when using parallel port programar and when i am using tl886 usb programmer its not working at all can i no what is the proble going on
Ok, so why don't you cross-check what bytes each programmer places in memory, ie write with one programmer, verify/checksum with the other. Understand what is stopping the code from running.
If you suspect the programmer isn't doing what it is supposed too, take it up with the vendor.