Hello all, I just built a new 28X-1 board, soldered everything up, and tried to do a firmware check with the editor. All of the connections look fine on my multimeter, but no luck. The chip was initially connected to a 20 mhz resonator, so i thought that might be the problem, and unsoldered it and attached a 16 mhz crystal + 2 caps in its place. Still no luck downloading. I was fairly sure that the new editor (5.1.5) had no problems downloading at higher frequencies, since there is no longer a drop-down box to set the frequency in the "options" menu, but anyone know for sure?. I'm starting to get a bit frustrated, so other suggestions are welcome as well =)
p.s. Yes, the reset pins are appropriately pulled high, the 2 ground connections are made, the chip is getting 5.05V, and the resonator is hooked up properly.
p.s. Yes, the reset pins are appropriately pulled high, the 2 ground connections are made, the chip is getting 5.05V, and the resonator is hooked up properly.