rsexton@uceng.UC.EDU (Robert Sexton) (01/17/90)
I have my lucas board together, but it will not gome up. I have checked all of the VCCs and GNDs so far, and everything is mostly in order(I had to wire in a GND)There is a problem with the 68881, which list 1 pin, b1, as being both VCC and GND :-) but I assum from my my checking that everything is probably OK. the BOARD will not flash the led. when I check it with the logic probe, it is eiether running or halted. after sever trials, it was determined that the board would run for 0-30 secs and then halt. it is not consistent in this. when it runs, a0-a4, a7 are active , as well as all of the data lines. the rest of the address lines are stable. I forget what R/W does.. Any Help. would be much appreciated -- Robert Sexton, rsexton@uceng.uc.edu Box Full O' Transputers... The Breakfast with MIPS I do not speak for anybody except myself.