Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
An important thing that is missing on some detailed comments is 'What and Why' we need to do this not just 'How' it's doing it.
**broken link removed**
Good job. I found one of my old DIY rom/ram cards from a 1970s 8080 project with piggyback Intersil 2114 memory chips. ( they still make a version of them! **broken link removed** )
CLIP0060 | RAM/ROM Board
I might just make it into a clock with a pic18 chip and use a 2114 as external memory...
I'm all for hacking it just for fun! ( I did something like that years ago with a Atari ST with a piggy-back cpu for multitasking because you couldn't completely virtualize a 68000)
Popek and Goldberg virtualization requirements - Wikipedia, the free encyclopedia
Some old software I wrote for...
I have done it (piggy-back) with old computers to upgrade ram but they had tri-state IO and address pins and it was simple to run the enable pin to the memory bank decoder chip. In the end it would be easier to upgrade the processor to something that can handle the job.
I have nothing personal against you 'freeman2' but IMHO you have made a fundamental error about EM fields that has been disproved many times over the past hundred years. Look at the perfect or ideal transformer models. The net energy transfer to the magnetic field always increases as the...
Electrons are simply the charge carriers for energy. Changing it's physical or quantum characteristics within matter only alters it's ability to transport energy in space or the transformation to other forms of energy (heat mainly). Sure there is research into iron based high temperature...
If you can tell me what electron quantum 'spin' has to do with some 'free energy' fairytale scam, I'm all ears.
http://www.collisiondetection.net/images/butt_kick.jpg
Stanley Meyer's water fuel cell - Wikipedia, the free encyclopedia
The use of a 'volatile' variable will stop the compiler from optimization of access to that variable but also any code restructure changes will also be stopped for the entire statement or subroutine. The code restructure optimizations will usually also be stopped by use of inline assembly...
A important difference in a Embedded target C compiler is the optimization logic. Code logic changes that in a userland application would make no difference in operation could completely change the behavior of a program that's talking directly to hardware, so a major part of the compiler package...
You could use a DC to DC converter to convert a higher supply voltage (30-60vdc) to the 12dc needed for the motor drivers.
Don't try to use a network cable, use something designed for the application like multi conductor marine cable.
**broken link removed**
I have a PIC18 hall current sensor solar energy project to monitor off-grid power generation. The waveforms I get with a hall current sensor make it pretty hard to get stable full range readings without long sampling periods and digital filtering. The actual peaks are high compared to the...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
