please dont rip this site



Stop!

At this time, we don't have a good system for answering questions posted here. If you really need to get a questions answered about the PIC or other microcontroller or some EE type issue or you want to talk with thousands of the most intellegent and kind people on the planet, please subscribed to the MIT piclist (which is not on this server) by reading the directions at the PICList homepage.

If you really must post things to this page, have at... but please don't expect answers. In the future, we will try to setup a system that allows posts to this page to be copied to the list (after being checked over by a moderator who has yet to volunteer [HINT, HINT])

Thank you for your patience.

Says: " Why not split the "PICList" into multiple mailing lists (i.e. pic@piclist.org, avr@piclist.org, ee@piclist.org, etc...)? " James Newton replies: Mostly because we don't own the mailing list server (MIT is kind enough to host the list and pay for the bandwidth) and so can not ask for more than one list. The topic tag system allows you to filter out the types of messages you don't want.+

+

... more questions ... Questions:

Interested:

christopher dahn Says:

please can anyone supply a total newbie with any asm source code for using a ds1307 with my 16f877. i've spent 3 days searching the net for some complete code without any luck i've found some projects but have no idea what part of their code is specific to the ds1307. i'm sure there must be someone out there who uses and understands how to opperate the ds1307

please email me at chrisdahn@hotmail.com
+

Robin C Fawell of Rhotech Says: +

Sajid Naqvi of Waders Power Control Says:

Hi,
I am making a 300VAC voltmeter on PIC. I need circuit diagram for linear conversion from 0-300VAC to 0-5.00VDC FSD. Both the supplies are to be isolated. Optocoupler based circuit would be great.
Thanks
+

Derick Q Siu of EbCon Systems Ltd. Says:

Hi there,

I'm having a problem with the PIC18F452 Microcontroller specifically with the PORTA module.

I have gone through this site for tips in dealing with PIC ports, and have followed the advice of eliminating all floating pins, setting unused pins to inputs, and grounding them with a 10K pull-down resistor. Currently I am just trying to simply test my port pins so I can interface it with my LCD display.

What I have is timer1 interrupting every 500MS and turning on and of RA0,RA1,RA2, and RE0. for the most part RA2, and RE0 work fine, I am getting a pulse from them, but as for RA0 and RA1, they constantly are at 0V, and I am not sure why that is. here is a snippet of my init code and isr function:
void port_init(void)
{
// set PortA to output
TRISA = 0xF8;
TRISA = 0;
ADON = 0; // turn off A/D converter
//PORTA = 0x00; // clear PORT A
RSclear();
RWclear();
Eclear();

// set PORTB to input
TRISB = 0xFF; // set portb as inputs
PORTB = 0x00; // clear Port B
RBIP = 1; // set port b interrupt priority high
INTEDG0 =1;
INTEDG1 = 1;
INTEDG2 = 1;
INT1IP = 1;
INT2IP = 1;
INT0IE = 1;
INT1IE=1;
INT2IE=1;
RBIE = 1; // enable the external interrupts

// set PORTD to output
TRISD = 0x00;
PORTD = 0x00; // clear Port D

PORTC = 0x00;
TRISC = 0xBF; // set RC6 as output

// set PORTE to output
PORTE = 0;
TRISE = 0xFE;
}
// part of isr routine
if((TMR1IF)&&(TMR1IE))
{
TMR1L = 0; // reset the timer
TMR1H = 0;
if(buff != 0xFF){
changestate(0x52);
}
count ++;
if(count == 5)
{
/*--------------------Test routine------*/
if(stat == 0xFF)
{
RE0=1;
RA0 = 1;
RA1 = 1;
RA2 = 1;
changestate(0x00);
}
else
{
RE0=0;
RA0=0;
RA1=0;
RA2=0;
changestate(0xFF);
}
/*---------------------------------------*/
count = 0;
}
TMR1IF = 0; // reset the timer interrupt
} // end if TMR1IF

I'm not sure if it is my circuit, or in my programming, since I've been hearing that microchip is tyring to phase out the TRIS function, yet it is included in the include files and datasheets.
if anyone can helpme in this matter, it would be greatly appreciated.

Thank you,

Derick
+

VIJAY BALAJI R Says:

hi
my project is implementation of space vector modulation to multilevel inverter.
i am using pic16f877a. i need help on how to implement it in hardware and how to proceed...
+

See


file: /Techref/piclist/questions.htm, 76KB, , updated: 2018/8/1 11:46, local time: 2024/10/12 02:31, owner: wshimada-hotmail-,
TOP NEW HELP FIND: 
3.237.15.145:LOG IN
©2024 PLEASE DON'T RIP! THIS SITE CLOSES OCT 28, 2024 SO LONG AND THANKS FOR ALL THE FISH!

 ©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE!

<A HREF="http://www.piclist.com/tecHREF/piclist/questions.htm"> PICList.com Questions:</A>

After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type a nice message (short messages are blocked as spam) in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.


Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?

  PICList 2024 contributors:
o List host: MIT, Site host massmind.org, Top posters @none found
- Page Editors: James Newton, David Cary, and YOU!
* Roman Black of Black Robotics donates from sales of Linistep stepper controller kits.
* Ashley Roll of Digital Nemesis donates from sales of RCL-1 RS232 to TTL converters.
* Monthly Subscribers: Gregg Rew. on-going support is MOST appreciated!
* Contributors: Richard Seriani, Sr.
 

Welcome to www.piclist.com!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  .