kiphartzell
New member
Okay, I am having to debug my testbench platform......
I am trying to use the Aux Control Interface (P57) to attach a encoder wheel. Has anyone try this or any other external controller? It seems straight forward, but I haven't been able to get it to work.
First, I had to make my own cable since I do not have the factory issued "Trak-Ball" adaptor harness (pn A038994-01). Looking at the PAT9000 manual chapters, 5,9 &11, it appears I only need to hook up 5 pins on P57; +5v,GND, HDIR, HCLK, & SW Enable. The first four go directly to the encoder wheel and the switch enable pin needs to be driven to +5v to disable the internal Joystick. On the Joystick Interface card, I also have set SW1 to 'On'. When my cable is plugged in, the internal joystick is disable, but the encoder wheel does nothing so I am guessing the HDIR & HCLK signals are not getting routed correctly through the PAT9000 multiplexing to the DUT. I have verified +5v gets to the encoder wheel and that it is a working wheel (on an actual Tempest machine).
Before trudging through the PAT9000 schematics, is there anything glaring I might be missing? Maybe something that needs calibrating or as easy as a missing switch setting, Duh?!?
Thanks.
I haven't tried scoping the HDIR or HCLK to see what they look like at the P57 connector, so I'll try that next.
I am trying to use the Aux Control Interface (P57) to attach a encoder wheel. Has anyone try this or any other external controller? It seems straight forward, but I haven't been able to get it to work.
First, I had to make my own cable since I do not have the factory issued "Trak-Ball" adaptor harness (pn A038994-01). Looking at the PAT9000 manual chapters, 5,9 &11, it appears I only need to hook up 5 pins on P57; +5v,GND, HDIR, HCLK, & SW Enable. The first four go directly to the encoder wheel and the switch enable pin needs to be driven to +5v to disable the internal Joystick. On the Joystick Interface card, I also have set SW1 to 'On'. When my cable is plugged in, the internal joystick is disable, but the encoder wheel does nothing so I am guessing the HDIR & HCLK signals are not getting routed correctly through the PAT9000 multiplexing to the DUT. I have verified +5v gets to the encoder wheel and that it is a working wheel (on an actual Tempest machine).
Before trudging through the PAT9000 schematics, is there anything glaring I might be missing? Maybe something that needs calibrating or as easy as a missing switch setting, Duh?!?
Thanks.
I haven't tried scoping the HDIR or HCLK to see what they look like at the P57 connector, so I'll try that next.