Search found 27 matches
- Thu May 10, 2018 12:19 pm
- Forum: Circuit Talk
- Topic: My first circuit: 74155
- Replies: 25
- Views: 35537
Re: My first circuit: 74155
Starting to simulate the 8080 microprocessor: the 8224 clock
.- Wed May 09, 2018 1:10 pm
- Forum: Circuit Talk
- Topic: My first circuit: 74155
- Replies: 25
- Views: 35537
Re: My first circuit: 74155
And finally, dynamic RAM:
- Wed May 09, 2018 1:09 pm
- Forum: Circuit Talk
- Topic: My first circuit: 74155
- Replies: 25
- Views: 35537
Re: My first circuit: 74155
Static RAM:
- Wed May 09, 2018 1:08 pm
- Forum: Circuit Talk
- Topic: My first circuit: 74155
- Replies: 25
- Views: 35537
- Wed May 09, 2018 1:08 pm
- Forum: Circuit Talk
- Topic: My first circuit: 74155
- Replies: 25
- Views: 35537
Re: My first circuit: 74155
Continuing:
- Wed May 09, 2018 1:06 pm
- Forum: Circuit Talk
- Topic: My first circuit: 74155
- Replies: 25
- Views: 35537
Re: My first circuit: 74155
I put one file at a time because it doesn't work when I put more than one!
- Wed May 09, 2018 1:05 pm
- Forum: Circuit Talk
- Topic: My first circuit: 74155
- Replies: 25
- Views: 35537
- Wed May 09, 2018 1:04 pm
- Forum: Circuit Talk
- Topic: My first circuit: 74155
- Replies: 25
- Views: 35537
Re: My first circuit: 74155
Going on: one more 74xxx. I should stop now because I have now all the TTL IC I needs to simulate my 8-bit computer. IC74170.CircuitProject I started to build RAM and ROM. To load the ROM I was surprised by the fact that the data must be stored in binary files. But it was not very difficult to ...
- Sun May 06, 2018 5:43 am
- Forum: Lounge
- Topic: 8bit computer
- Replies: 8
- Views: 49212
Re: 8bit computer
Thank you very much for these advices. I started to work on this 8-bit computer project and I have already published some CIs I have made, in Circuit Talk "My first circuit: 74155". Between them, there are the 74122 and 74123 on-shots. I also looked at ROM and RAM. I have found it is very easy to ...
- Sat May 05, 2018 9:06 pm
- Forum: Circuit Talk
- Topic: My first circuit: 74155
- Replies: 25
- Views: 35537
Re: My first circuit: 74155
I tried to simulate the 74122 and 74123 one-shot CIs. I used the ideia of counting a number of periods of the clock. My project has an 8-bit counter which resets a D flip-flop when the count is equal to the preset value. This value is informed with two nibbles (2 x 4 bits) specific to each one-shot ...