I was determined to work on this today, so I patched in a power supply and got it working for now.
It powers up and boots on Crusty's PCB with a; STOP, REST, RUN on the Fp Mini. I ran several memory tests from boot Eprom and the Monitor in CPM. It looks like all the LED's on the FP Mini are working as they should. I have yet to find out how I can 'jump' out of Crusty's software, so I can try some deposits / examines or even toggle in a simple program... Todd ----- Original Message ----- From: [email protected] To: [email protected] Sent: Sunday, July 26, 2015 12:35:01 PM Subject: Re: [N8VEM-S100:7448] Playing with FP Mini, Crustys 8080, Con I/O & SMB Josh, The 8080 board has been working fine for months, it wasn't until I installed the FP Mini and started playing around when it went out. I doubt the FP had anything to do with it, the power supply was a used purchase from Ebay, probably took a crap. Todd ----- Original Message ----- From: "Crusty OMO" <[email protected]> To: [email protected] Sent: Sunday, July 26, 2015 12:00:36 PM Subject: RE: [N8VEM-S100:7447] Playing with FP Mini, Crustys 8080, Con I/O & SMB Todd, The 8080 board uses the +/- 16V for only two circuits... 1. The 8080 and 8224 clock chip itself (draws only a few milliamps, I'll guess 50ma max) 2. The RS232 transmitter chips 1488's, and I'll guess these use about 10ma max. Check the 78Lxx and 79Lxx regulators for any shorts, or check capacitors for correct polarity? Regards, Josh Date: Sun, 26 Jul 2015 09:15:02 -0700 From: [email protected] To: [email protected] Subject: [N8VEM-S100:7447] Playing with FP Mini, Crustys 8080, Con I/O & SMB I finally found some time to play with my setup now that I finished the FP Mini board. Why trying to integrate all the boards to work together, I lost my +16vdc.... Out of all the boards, only Crustys 8080 uses +/- 16vdc The switcher I have outputs +15vdc @ 1.5 amps & -15vdc @ 1.5 amps. Was this not enough ? What is the required draw for the 8080 pcb ? Now I can't play today until I get another supply :-( I'd like some setup tips from other users with same setup. -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
