Search found 16 matches

by digitalman
Wed Oct 30, 2013 7:17 am
Forum: Discuss LogicCircuit program
Topic: possible bug in probe listing?
Replies: 3
Views: 9641

Re: possible bug in probe listing?

Thanks for clarification on how probe and probe listing function. I tried your suggestion of replacing the clock with a toggle button and it still register extra number between correct count value in the probe listing. Since multi-bits are changed between clock cycle with the decimal counting and ...
by digitalman
Fri Oct 25, 2013 8:36 am
Forum: Discuss LogicCircuit program
Topic: possible bug in probe listing?
Replies: 3
Views: 9641

possible bug in probe listing?

Attached is a 8-bit counter with load circuit. The value displayed by the probe seems to be correct; however, values shown in the probe listing are not.
by digitalman
Mon Oct 21, 2013 1:20 pm
Forum: Discuss LogicCircuit program
Topic: how to increase the RAM address?
Replies: 3
Views: 9302

Re: how to increase the RAM address?

it looks like implementing larger ram with smaller ram modules would take some work. it's doable, but the stock ram module needs to be added with chip enable control along with a decoder to select the ram modules. Also, in order to tie the ram modules output together, tri-state buffers will need to ...
by digitalman
Mon Oct 21, 2013 8:48 am
Forum: Discuss LogicCircuit program
Topic: how to increase the RAM address?
Replies: 3
Views: 9302

Re: how to increase the RAM address?

I recompile the code after changing the max from 16 to 17, and it seems to work properly. I'll try to combine 2-64k x 8 bit ram to emulate 128k x 8 bit ram.
by digitalman
Mon Oct 21, 2013 7:58 am
Forum: Discuss LogicCircuit program
Topic: how to increase the RAM address?
Replies: 3
Views: 9302

how to increase the RAM address?

Hi, I am trying to simulate a logic circuit which has a pair of 128k x 8-bit ram chip. The problem is that the LogicCircuit program supports only up to 15 addr bit just short of 1-bit for my need. Instead of modifying the source code, is there simpler way of combine two ram chip to accomplish the ...
by digitalman
Tue Oct 08, 2013 10:24 am
Forum: Discuss LogicCircuit program
Topic: multiple RAM contents
Replies: 4
Views: 9943

Re: multiple RAM contents

That was exactly what you described. I created a chip that contained a RAM. Then, I reused the same chip multiple time in the main circuit. With persist ram setting on, the program will block power on to the circuit. To fix the problem, I make multiple copy of the chip and give them different names ...
by digitalman
Tue Oct 08, 2013 8:13 am
Forum: Discuss LogicCircuit program
Topic: multiple RAM contents
Replies: 4
Views: 9943

Re: multiple RAM contents

The multiple independent RAMs does not seem to work for 'Persist memory between runs' setting. All other settings work. I need to use 'Persist memory' in order to load the RAM content before the simulation. Otherwise, it'll be tedious to load each RAM by hand during simulation. Any idea to support ...
by digitalman
Tue Oct 08, 2013 7:27 am
Forum: Discuss LogicCircuit program
Topic: multiple RAM contents
Replies: 4
Views: 9943

multiple RAM contents

Hello,

Does LogicCircuit support multiple RAMs on the sample circuit? It seems that when I load data into one RAM, all other RAMs are being loaded with the same data. Is there way to handle multiple independent RAMs in the same circuit? Or, am I missing something? Thanks!

v/r,
Long
by digitalman
Fri Sep 27, 2013 7:28 am
Forum: Discuss LogicCircuit program
Topic: question on creating Transceiver Chip
Replies: 8
Views: 18380

Re: question on creating Transceiver Chip

As the chip's functional spec gets complex, it becomes tedious or impossible to implement with current built-in logic abstraction. I am contemplating of extending LogicCircuit by creating a new built-in chip type that will provides LogicCircuit interface for external dll via interop call. Basically ...
by digitalman
Sat Sep 21, 2013 2:51 pm
Forum: Discuss LogicCircuit program
Topic: question on creating Transceiver Chip
Replies: 8
Views: 18380

Re: question on creating Transceiver Chip

Here is the implementation and testing circuit for 6116 and 245 chips.

Eugene,

please continue supporting VS2010, Thanks!

V/r,
Long