Hello,
I was wondering if anyone tried building one of these TX boards and have everything working except for external accelerators ?
The one I built here has an onboard 030 cpu/881 fpu.
As soon as I add an external A3630 (confirmed working on another motherboard), it's stuck with dim LED and sits there forever (not executing code, as caps lock stops responding after a few presses).
I've been around the resistor networks 2.7k, 1.2k etc (those are separate resistors on rev b/cr rev d), all seem good and not shorted.
Would anyone have ideas which signals on the KEL connectors most likely to be causing it to stall ? / or what to check there, maybe clocks ?
Any help appreciated
I was wondering if anyone tried building one of these TX boards and have everything working except for external accelerators ?
The one I built here has an onboard 030 cpu/881 fpu.
As soon as I add an external A3630 (confirmed working on another motherboard), it's stuck with dim LED and sits there forever (not executing code, as caps lock stops responding after a few presses).
I've been around the resistor networks 2.7k, 1.2k etc (those are separate resistors on rev b/cr rev d), all seem good and not shorted.
Would anyone have ideas which signals on the KEL connectors most likely to be causing it to stall ? / or what to check there, maybe clocks ?
Any help appreciated
