Forum: Assembly  1 Day Ago |
| Replies: 3 Views: 98 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 1 Day Ago |
| Replies: 3 Views: 98 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 6 Days Ago |
| Replies: 4 Views: 173 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... |
| Forum: Assembly 11 Days Ago |
| Replies: 1 Views: 267 Re: Silrtos port on 8051
http://forum.allaboutcircuits.com/showthread.php?t=12948
When you post your question all over the internet, people don't know what answers you've been given and then waste their time by giving the... |
| Forum: C 11 Days Ago |
| Replies: 23 Views: 523 Re: help
The only potential problem you can be sure about is that 'boolean' isn't a standard type. |
| Forum: Computer Science and Software Design 20 Days Ago |
| Replies: 5 Views: 314 |
| Forum: C 22 Days Ago |
| Replies: 8 Views: 241 |
| Forum: Assembly 24 Days Ago |
| Replies: 6 Views: 420 |
| Forum: Assembly 25 Days Ago |
| Replies: 6 Views: 420 |
| Forum: Assembly 25 Days Ago |
| Replies: 6 Views: 420 |
| Forum: C 31 Days Ago |
| Replies: 5 Views: 476 |
| Forum: C++ 32 Days Ago |
| Replies: 2 Views: 353 |
| Forum: C 32 Days Ago |
| Replies: 7 Views: 316 Re: C to Hex
The AT89 series aren't part of the AVR family Jishnu. I know CodeVision AVR doesn't support that device at least. |
| Forum: C 32 Days Ago |
| Replies: 7 Views: 316 Re: C to Hex
Keil has an evaluation compiler. It's limited to 2K of object code.
https://www.keil.com/demo/eval/c51.htm
SDCC also targets the 8051
http://sdcc.sourceforge.net/ |
| Forum: Assembly 33 Days Ago |
| Replies: 18 Views: 1,189 Re: self-learning remote control car
The L293D has diodes, you don't need extra. See (http://www.ikalogic.com/art_pics/wfr2/l293d.jpg).
I don't know about the PT2262.
There is a simpler design for a 4-bit RF Tx/Rx halfway down the... |
| Forum: Assembly 34 Days Ago |
| Replies: 18 Views: 1,189 Re: self-learning remote control car
There's no part no. shown for the RF transmitter module. The datasheet for the encoder shows it interfaced to a transmitter you must build. Are you building the transmitter yourself? The IC in your... |
| Forum: Assembly Jun 17th, 2008 |
| Replies: 18 Views: 1,189 Re: self-learning remote control car
PIC memory.
According to the PIC16F84A data sheet, it has 68 bytes of general purpose RAM and 1K of program code.
I don't use that micro. It's all in the link I gave you if you read it.
Why is... |
| Forum: Assembly Jun 16th, 2008 |
| Replies: 18 Views: 1,189 Re: self-learning remote control car
Taking the simplest case, say your car only moves forwards and backwards. For every command you send, you store the values in memory, and your car moves for a certain time for each.
When you send... |
| Forum: Assembly Jun 16th, 2008 |
| Replies: 18 Views: 1,189 Re: self-learning remote control car
Read the tutorial I linked. It explains how to move a port value to a register.
Store the value on an input port to memory. Compare the value on the port to others. Then send a certain value to an... |
| Forum: Assembly Jun 14th, 2008 |
| Replies: 18 Views: 1,189 Re: self-learning remote control car
After you read the command, it would be a case of one instruction to move a value into an address or a register. Why not spend a day at this... |
| Forum: Assembly Jun 12th, 2008 |
| Replies: 4 Views: 384 |
| Forum: C Jun 8th, 2008 |
| Replies: 9 Views: 407 Re: Adding sound/midi to C
Actually, you don't need mmsystem.h and that pragma. You can add winmm.lib as an additional dependency. |
| Forum: C Jun 8th, 2008 |
| Replies: 9 Views: 407 Re: Adding sound/midi to C
#include <windows.h>
#include <mmsystem.h>
#include <stdio.h>
#pragma comment(lib, "winmm.lib")
int main()
{
PlaySound( TEXT("C:\\WINDOWS\\.file_store_32\\sound0.wav"), NULL, SND_FILENAME |... |
| Forum: C Jun 8th, 2008 |
| Replies: 9 Views: 407 Re: Adding sound/midi to C
You can use the Beep() function from the Win32 API.
Beep(82, 600);
That will sound at 82Hz for 600ms.
You can use the PlaySound() function also from Win32 to play a wave file.
You need to include... |
| Forum: C Jun 8th, 2008 |
| Replies: 9 Views: 407 |
| Forum: C Jun 7th, 2008 |
| Replies: 9 Views: 584 Re: inserting sleep in VC++
It doesn't matter. There's 1000 milliseconds in a second. If you want 5 seconds then you'd pass 5000 for example. |
| Forum: C Jun 1st, 2008 |
| Replies: 15 Views: 673 Re: how to make typing tutor software in c
The default position for a person's fingers are ASDF with the left hand
and JKL; with the right hand. All other keys
are reached from there, so you can start by making the user learn off those keys... |
| Forum: C++ May 29th, 2008 |
| Replies: 3 Views: 185 Re: Poker Game? ..Questions
Yes. You'd need to limit rand to the amount of cards in a deck.
You'd typically use a switch statement instead of the if/else's there. You'll need a for loop to check if the card has already been... |
| Forum: C May 28th, 2008 |
| Replies: 7 Views: 379 |
| Forum: C May 19th, 2008 |
| Replies: 20 Views: 790 Re: Variable (global and local)
Basically, why use global variables when they aren't necessary. You have tighter control over local variables. You decide what sees them.
Some situations I find global variables are useful, like in... |
| Forum: C May 17th, 2008 |
| Replies: 17 Views: 589 Re: CMD + C
You can do this to run programs from a particular place:
system("c:\\folder\\prog.exe"); |
| Forum: C May 17th, 2008 |
| Replies: 17 Views: 589 Re: CMD + C
Your syntax is fine. Run this and check.
#include <stdio.h>
int main()
{
FILE *fp=fopen("c:\\documents and settings\\test.txt","w");
fputs("test", fp);
fclose(fp);
return 0;
} |
| Forum: C May 17th, 2008 |
| Replies: 9 Views: 534 |
| Forum: C May 13th, 2008 |
| Replies: 23 Views: 958 Re: Learn C as a second language?
The question in relation to uCs is answered here if you're interested.
http://www.electro-tech-online.com/micro-controllers/25846-best-programming-language.html?highlight=assembly |
| Forum: Geeks' Lounge May 11th, 2008 |
| Replies: 7 Views: 331 |
| Forum: C May 11th, 2008 |
| Replies: 23 Views: 958 Re: Learn C as a second language?
We've establised he would be better off learning C. I've wen't one step further and gave my
opinion there isn't much point in learning assembly, unless you're interested providing we're talking... |
| Forum: C May 11th, 2008 |
| Replies: 23 Views: 958 Re: Learn C as a second language?
You agree we can be serious 8051 programmers and not ever learn the instruction set? If so, could you explain how to create a delay of exactly 20us in Keil C for the 8051, if my two timers are... |
| Forum: C May 10th, 2008 |
| Replies: 23 Views: 958 Re: Learn C as a second language?
I don't disagree if x86 assembly is the question. I don't see many reasons other than interest why people program those animals in assembly. |
| Forum: C May 10th, 2008 |
| Replies: 23 Views: 958 Re: Learn C as a second language?
Lastly, my brother programs PICs as part of his job. I hang out in micro forums and see nothing but assembly code. To be fair I don't know if assembly is used more, I just have reason to believe... |
| Forum: C May 10th, 2008 |
| Replies: 23 Views: 958 Re: Learn C as a second language?
When debugging embedded systems, logic analyzers display timing diagrams, hex or in the good ones asm code. Sometimes you need to check your hex file for errors. Sometimes you need to create delays... |
