16F877-??

Started by leon_vanderwalt in Piclist14 years ago 1 reply

Hi All, I am very new to this PIC stuff. I want to know what the difference is between a 16F877-20/P and a 16F877-04/P? I...

Hi All, I am very new to this PIC stuff. I want to know what the difference is between a 16F877-20/P and a 16F877-04/P? I know I can find this in the datasheet but I do not have the datasheet with me at the moment and therefore hope that someone can help me out


16F877 programing Vs 16F877A

Started by fjch100 in Piclist14 years ago 3 replies

Hi, I'm using the Tait Flash PIC Programmer and "Classic" interface, I can program a 16F877 but not a 16F877A, what is the...

Hi, I'm using the Tait Flash PIC Programmer and "Classic" interface, I can program a 16F877 but not a 16F877A, what is the difference between both? I can read, erase but not Write the 16F877A. With the 16F877 everything works OK. I try changing the differents soft


scalling down from a 16F877

Started by Dave Mucha in Piclist12 years ago 2 replies

Hi all, I'm looking to scale down from a 16F877 to an 18 pin PIC. hopefully, there is something that is easily that does not need...

Hi all, I'm looking to scale down from a 16F877 to an 18 pin PIC. hopefully, there is something that is easily that does not need much tweeking in software. Anyone have any suggestions ? Dave


PIC 16F877 hangs up

Started by R Ramesh in Piclist14 years ago 3 replies

Hi all , I m designing a control box with PICs ,  My system work with 16F877 and 16F872  . After I switch on the system , after few...

Hi all , I m designing a control box with PICs ,  My system work with 16F877 and 16F872  . After I switch on the system , after few minutes the 16F877 hangs up . It's display shows it, all values in the display hangs up already , But still 16F872 is working . Then I switch off the system it


hi ned to sense 1mV by an 16F877

Started by R Ramesh in Piclist14 years ago 7 replies

Hi all I m using 16F877. I need to sense 1mV changes  input variation . But I coundnot. Because 5V/ 1024 = 0.004V per bit....

Hi all I m using 16F877. I need to sense 1mV changes  input variation . But I coundnot. Because 5V/ 1024 = 0.004V per bit. Is there anyway to sense 1mV by 16F877. Thx Ramesh


Wireless Networking with 16f877?

Started by Kevin Van Winkle in Piclist13 years ago 3 replies

I thought I'd put this query out there in the hopes of not having to reinvent the wheel. I'd like to use a 16f877 (Or...

I thought I'd put this query out there in the hopes of not having to reinvent the wheel. I'd like to use a 16f877 (Or similar) to talk via 802.11b/g. I know of the 8/16 bits kludges of regular NICS to this chip, but was thinking of wireless if anyonw had done i


16f877 RCIF handle...

Started by German Enred in Piclist14 years ago 2 replies

Hi: Please... someone know all about the handle of the RCIF on PIC 16F877?? Regards.. -- Germ?n Hern?ndez...

Hi: Please... someone know all about the handle of the RCIF on PIC 16F877?? Regards.. -- Germ?n Hern?ndez C.


ADC

Started by nanoboticslover in Piclist14 years ago 7 replies

Hi! I wonder what if I connect the load impedence of more than 10k ohm to analog input of PIC 16F877. The recommended impedence...

Hi! I wonder what if I connect the load impedence of more than 10k ohm to analog input of PIC 16F877. The recommended impedence is 10 k ohm for PIC 16F877. I'd like to know what are the effect. Regards. bryan


Sine PWM using 16f877

Started by p.vijayamurugan in Piclist13 years ago 5 replies

hai all this is vijay from India wishing you a happy day i have a requirement to generate a Sine PWm using PIC 16f877. ...

hai all this is vijay from India wishing you a happy day i have a requirement to generate a Sine PWm using PIC 16f877. can anybody help me in developing the logic thanx in advance vijay


LCD and 16F877

Started by madajimmy in Piclist15 years ago 1 reply

Hi, I need help. I'm working in LCD display with PIC 16F877. My project is displaying messages on 16x2 LCD (Hitachi HD44780)...

Hi, I need help. I'm working in LCD display with PIC 16F877. My project is displaying messages on 16x2 LCD (Hitachi HD44780) with 4 bit interface. To make easy, I create a macro subroutine to send to the LCD. It's no problem when I only send little message.


IC PROG+JDM+16F628+16F877+16F84

Started by csg37 in Piclist14 years ago 4 replies

This is my first message hi all of you. I look for a JDM circuit which programs 16F628+16F877+16F84 in one circuit. ...

This is my first message hi all of you. I look for a JDM circuit which programs 16F628+16F877+16F84 in one circuit.


16f877 sych and async comm question

Started by greerde in Piclist14 years ago

i'm starting on a project that requires async serial input and sync output. I just wanted to make sure the 16f877 can do both...

i'm starting on a project that requires async serial input and sync output. I just wanted to make sure the 16f877 can do both of these at the same time. I think i am going to use SPI (instead of I2C) for the sync output and USART for the async input. does this sound like a


16f877

Started by peter hadge in Piclist14 years ago 3 replies

hi all,   if i want to control 8 relays by the 16F877, could i connect these relayes directly to 8 output from the...

hi all,   if i want to control 8 relays by the 16F877, could i connect these relayes directly to 8 output from the PIC without using any kind of buffers or any other components? thanx


where to connect the unused pins 16f877 to avoid the noise

Started by R Ramesh in Piclist14 years ago 2 replies

Hi all I planned to improve my cicuit free of noise. For what we have to do the unused pins in 16F877.  Need to connect...

Hi all I planned to improve my cicuit free of noise. For what we have to do the unused pins in 16F877.  Need to connect directly to ground or through an resistor or any other way?   Thx Ramesh  


BootLoader for 16F872,16F877

Started by R Ramesh in Piclist13 years ago 1 reply

Hi all,   Here I m trying to make an Bootloader for 16F877 and 16F872. I took the info form the ...

Hi all,   Here I m trying to make an Bootloader for 16F877 and 16F872. I took the info form the http://www.microchipc.com/PIC16bootload/   When i made the circuit mentioned in the notes,i


16F877

Started by Paul_Lav in Piclist14 years ago 3 replies

Hi, i have been working with the 16F877 pic at work the last week and have a few questions.   1. EEPROM

Hi, i have been working with the 16F877 pic at work the last week and have a few questions.   1. EEPROM


Need help for A/D convator

Started by kamaldias111 in Piclist9 years ago 2 replies

Please any one can help me how to connect CS5532 serial A/D convator chip with pic 16f877 microcontroller.please send...

Please any one can help me how to connect CS5532 serial A/D convator chip with pic 16f877 microcontroller.please send cords??????!!!! Thanks!!! ------------------------------------


Hey

Started by goldengraham_h in Piclist14 years ago 9 replies

I just started a class at uni where we I'm going to be programming a PIC 16f877 micorcontroller. I have no idea where to being and...

I just started a class at uni where we I'm going to be programming a PIC 16f877 micorcontroller. I have no idea where to being and we were'nt given much information on the matter... I'm wondering if anyone could point me towards a site with some tutorials or something of the like


Linking

Started by stdf23173 in Piclist14 years ago

I am using CC5X to compile my code. It is however limited to 1024 words since i use the student version. When writing for a...

I am using CC5X to compile my code. It is however limited to 1024 words since i use the student version. When writing for a 16F84 this is more than fine. For the 16F877 it is not ! It is possible to link multiple files with MPLink. Is any one else using this ? Ar


Please help! ..URGENT...

Started by kaps_iit in Piclist13 years ago

Hello friends, I need ur help urgently. I am new to pic micros. I have ccs c compiler .i made very simple programs but it is...

Hello friends, I need ur help urgently. I am new to pic micros. I have ccs c compiler .i made very simple programs but it is not working as expected. 1. program 1. ....PINB.2 is connected to ground always. #include <16f877.h>