Re: VGER-20... A Multi-Media Expansion Cartridge.
Posted: Sun Dec 31, 2017 7:49 pm
Thanks, and Happy 7E2 to everyone here.
It's more trial and error + stubbornness than some innate ability, but it gets the job done!
I think the parallel lines in the breadboard act as capacitors, so it' kind of a built in feature.
Sometimes this works for you, some times against you.
That massive breadboard I posted a few pics up runs at 40MHz, and what is shown is only the first half.
... so a breadboard can certainly be used for some real high speed design.
On a real PCB, I usually add .1uF to all VCC and GND pairs on the ICs.
I also follow the recommendations for any FPGA or CPLD (mostly).
Cheers!
Brad
It's more trial and error + stubbornness than some innate ability, but it gets the job done!
I think the parallel lines in the breadboard act as capacitors, so it' kind of a built in feature.
Sometimes this works for you, some times against you.
That massive breadboard I posted a few pics up runs at 40MHz, and what is shown is only the first half.
... so a breadboard can certainly be used for some real high speed design.
On a real PCB, I usually add .1uF to all VCC and GND pairs on the ICs.
I also follow the recommendations for any FPGA or CPLD (mostly).
Cheers!
Brad