Forum: Assembly  19 Hours Ago |
| Replies: 2 Views: 50 |
| Forum: C 1 Day Ago |
| Replies: 2 Views: 67 Re: Could anyone explain pointers?
int i;
int *p;
p = &i; // p holds the address of i
*p = 10;
The last assignment says take the value in p, go to that address and put 10 there.
Therefore, i now holds 10.
To prove that you could... |
| Forum: C++ 2 Days Ago |
| Replies: 18 Views: 297 Re: Real time clock
Have a microcontroller generate the PWM.
You can communicate with the microcontroller using the PC. |
| Forum: C 11 Days Ago |
| Replies: 11 Views: 264 |
| Forum: Computer Science and Software Design 23 Days Ago |
| Replies: 7 Views: 464 |
| Forum: Windows 9x / Me 23 Days Ago |
| Replies: 8 Views: 279 |
| Forum: Assembly 27 Days Ago |
| Replies: 9 Views: 305 |
| Forum: Assembly 27 Days Ago |
| Replies: 9 Views: 305 Re: help with instraction waveforms
http://www.ustr.net/lcd001.shtml
You need to see the diagram to understand what's happening. P0 is the low byte and P2 is the high byte of the address bus. 2A67H is placed on the address bus. ALE... |
| Forum: Assembly 28 Days Ago |
| Replies: 4 Views: 240 |
| Forum: Assembly 28 Days Ago |
| Replies: 4 Views: 240 |
| Forum: Assembly 28 Days Ago |
| Replies: 9 Views: 339 |
| Forum: Assembly 28 Days Ago |
| Replies: 9 Views: 339 |
| Forum: Assembly 28 Days Ago |
| Replies: 9 Views: 339 |
| Forum: Assembly 28 Days Ago |
| Replies: 9 Views: 339 |
| Forum: Assembly 28 Days Ago |
| Replies: 9 Views: 339 |
| Forum: Assembly 28 Days Ago |
| Replies: 9 Views: 298 Re: Need help ADDRESS ERROR - ACCESS problem
Your circuit is wrong. You've no current limiting resistors at the base of the transistors, which causes the chip to drive them at it's maximum output high current, which will cause it to... |
| Forum: Geeks' Lounge Sep 28th, 2008 |
| Replies: 483 Views: 17,323 |
| Forum: Geeks' Lounge Sep 28th, 2008 |
| Replies: 483 Views: 17,323 |
| Forum: Geeks' Lounge Sep 22nd, 2008 |
| Replies: 483 Views: 17,323 |
| Forum: C++ Sep 22nd, 2008 |
| Replies: 10 Views: 597 Re: Sound Visulisation/Frequency View
An XY graph with amplitude on Y-axis and time on the X-axis. Excel or any software with good graphing capabitlites should do.
This is how 5 samples of 8-bit PCM with a sampling frequency of 1KHz... |
| Forum: C++ Sep 21st, 2008 |
| Replies: 10 Views: 597 Re: Sound Visulisation/Frequency View
http://www.intmath.com/Fourier-series/7_Fast-fourier-transform-FFT.php
I believe that's only useful for describing
the wave mathematically, as a series of sines and cos waves added together (which... |
| Forum: Geeks' Lounge Sep 20th, 2008 |
| Replies: 483 Views: 17,323 Re: 2008 US Presidential Poll Part 2
What's the alternative? - Christian Serbs fleeing their land, ethnic Albanians burning churches to the ground and the rise of Islamic fundamentalism backed by Saudi money in Kosovo. |
| Forum: Geeks' Lounge Sep 20th, 2008 |
| Replies: 483 Views: 17,323 |
| Forum: C++ Sep 19th, 2008 |
| Replies: 10 Views: 597 Re: Sound Visulisation/Frequency View
Are you able to obtain an amplitude for every sample from beginning to end from the wav file? That's the information you need.
So if the wave is sampled at 44.1 KHz, you have an amplitude at every... |
| Forum: C Sep 19th, 2008 |
| Replies: 2 Views: 338 |
| Forum: C++ Sep 18th, 2008 |
| Replies: 4 Views: 504 Re: c++ hardware programming tutorials
The parallel port is the most simplest port you'll find on a computer and could do those things for you. I'd start there (providing you have a parallel port). Your operating system is also a factor. |
| Forum: Computer Science and Software Design Aug 28th, 2008 |
| Replies: 1 Views: 552 Re: PC and Mobile Phone Control
Your mobile may have a certain AT command set which would define all the information you can retrieve, via a serial connection, which might be RS-232 although Nokia usually use the FBUS protocol.... |
| Forum: Assembly Aug 28th, 2008 |
| Replies: 3 Views: 436 |
| Forum: C++ Aug 24th, 2008 |
| Replies: 4 Views: 433 |
| Forum: Computer Science and Software Design Aug 6th, 2008 |
| Replies: 10 Views: 1,037 Re: speech recognition system
Depends on whether you want to use the mic insert on the PC or external hardware and send the voice info to the PC.
The latter is probably doable for word recognition but not translating whole... |
| Forum: C Aug 6th, 2008 |
| Replies: 24 Views: 1,086 Re: help with calculator
Turbo C programs don't run directly under windows. They run in the Virtual DOS machine, which makes the process less efficent.
The VDM isn't included with the most recent versions of Windows... |
| Forum: C Aug 5th, 2008 |
| Replies: 11 Views: 901 Re: how to detect arrow keys??
This program only works in Turbo C.
#include <stdio.h>
#include <conio.h>
int main(void)
{
unsigned char key, key2;
while( (key=getch()) != '\r' ) |
| Forum: C++ Aug 3rd, 2008 |
| Replies: 8 Views: 375 Re: Question about C++
Some programs don't need human interaction directly. Just look at some of the programs that make up the software installed on your computer, or belong to your OS.
Frontends are often written for... |
| Forum: C Aug 3rd, 2008 |
| Replies: 3 Views: 2,174 |
| Forum: Assembly Aug 2nd, 2008 |
| Replies: 8 Views: 1,405 |
| Forum: C Aug 1st, 2008 |
| Replies: 9 Views: 578 |
| Forum: C Jul 31st, 2008 |
| Replies: 9 Views: 355 |
| Forum: Assembly Jul 22nd, 2008 |
| Replies: 3 Views: 1,175 Re: Control Many LED's PWM
Some 18F's have multiple PWM outputs.
I'm sure you could also implement it in software using interrupts. If you can generate PWM on
one pin, you can do the inverse on another. |
| Forum: Assembly Jul 22nd, 2008 |
| Replies: 3 Views: 1,175 Re: Control Many LED's PWM
There's free versions of compilers for writing in other languages like C and Basic which come with libraries. If you used a few PICs, this wouldn't be difficult I wouldn't think. PICs can come with... |
| Forum: Assembly Jul 17th, 2008 |
| Replies: 8 Views: 1,405 Re: 7 segment countdown from 99 with atmel 89s51??
Create a variable for units and a variable for tens.
Decrement the units variable, then pass each to a subroutine which checks its value and sends out the particular code. If the units variable is... |
