Hello guys, I just made a quick speed test in ISE 7.1 with a Spartan 3E device. A
32-bit counter runs at 129 MHz in XC3S500E-4, but in a Spartan 3 XC3S400-4 at a higher 168 MHz. Also checked a few other desings, like DDR SDRAM controller, and they all run about 20% slower on Spartan 3Es. I don't get it, isn't 3E series supposed to have the same core as the Spartan 3?Best Regards George