| ??? 05/20/05 10:21 Read: times |
#93635 - Define your Simple Responding to: ???'s previous message |
Hi,
I don't know what do you mean by saying "simple" but in my opinion if you talking SBC, then i am thinking a processor, external code-memory, external RAM and I/O. If I am right, then you will actually need or use the 8031 or 8051 with EA set to GND, you will put the latch on Port 0 with its CS to ALE, then you will take Port 2 together with output from latch to form an Address Bus to RAM and Code-Mem. and thier data out will be connected to form Data Bus to Port 0. Then you will need to use PSEN to select the Code Memory and you will need to use the RD and WR to the RAM. I don't have to explain everything but i think i painted a picture. If i were wrong then you need to further define your "Simple" Regards Lehuma |
| Topic | Author | Date |
| another SBC subject... | 01/01/70 00:00 | |
| what is the goal? | 01/01/70 00:00 | |
| Define your Simple | 01/01/70 00:00 | |
| Why external? | 01/01/70 00:00 | |
| Required for students | 01/01/70 00:00 | |
| Incorrect | 01/01/70 00:00 | |
| correct depending on context | 01/01/70 00:00 | |
| SILabs demo board | 01/01/70 00:00 | |
| 8052 Basic Project | 01/01/70 00:00 | |
| Jan. | 01/01/70 00:00 | |
| Thanks, Steve! | 01/01/70 00:00 | |
| more info .. | 01/01/70 00:00 | |
| You've got it! | 01/01/70 00:00 | |
| Paralax and Basic !! | 01/01/70 00:00 | |
| You 've forgot this one | 01/01/70 00:00 | |
| Modern design | 01/01/70 00:00 | |
| oh, the first one | 01/01/70 00:00 | |
| If I were you... | 01/01/70 00:00 | |
| Hmm... | 01/01/70 00:00 | |
| Ouch... | 01/01/70 00:00 | |
| verotool | 01/01/70 00:00 | |
| Veroboard (stripboard) tutorial | 01/01/70 00:00 | |
| Veroboard | 01/01/70 00:00 | |
| yes, but sometimes | 01/01/70 00:00 | |
| vero still used | 01/01/70 00:00 | |
| terminology | 01/01/70 00:00 | |
| perfboard? | 01/01/70 00:00 | |
| First hand about prototyping in America | 01/01/70 00:00 | |
| "Vector Board" | 01/01/70 00:00 | |
| Thats the stuff | 01/01/70 00:00 | |
| Back Up Two | 01/01/70 00:00 | |
| PTH prototyping board | 01/01/70 00:00 | |
| Pad board | 01/01/70 00:00 | |
| Something I prepared earlier. | 01/01/70 00:00 | |
| I'd be scared stiff | 01/01/70 00:00 | |
| Impossible | 01/01/70 00:00 | |
| no mechanics | 01/01/70 00:00 | |
| LCD Tip | 01/01/70 00:00 | |
| if you do so | 01/01/70 00:00 | |
| Here's mine - It doesn't take much | 01/01/70 00:00 | |
| Now THATS scary | 01/01/70 00:00 | |
| Scary | 01/01/70 00:00 | |
| ymmv | 01/01/70 00:00 | |
| quick? | 01/01/70 00:00 | |
| If they're so bad then why... | 01/01/70 00:00 | |
it is not how fast it has to be | 01/01/70 00:00 | |
| Remember this one? | 01/01/70 00:00 | |
| Wow | 01/01/70 00:00 |