I am using STK200. To program I use PonyProg2000 or AtmelAVR ISP.
Everything works fine for the AT90S8515-8-PC chip.
But it doesn't work for AT90S8535-8-PI chip. When I try to erase or program the FLASH in AT90S8535-8-PI I get the following message in PonyProg: "Device missing or unknown device (-24).
And in AtmelAVR ISP I get the following message: "AT90S7LS8535 Part Not Detected - this may be due to power off on programming module. Security Bits Enabled or pre production AVR."
I don't get these messages when I use AT90S8515-8-PC.
I know that STK200 supports AT90s8535 chip. PonyProg2000 and AtmelAVR ISP support it too.
Any Idea?