pic16cxxx interface

Started by s007x in Piclist14 years ago

Hi All, Can you please feed me back about how to interface the "PIC16C781/2", but please ignore the interface circuits in ...

Hi All, Can you please feed me back about how to interface the "PIC16C781/2", but please ignore the interface circuits in microchip application note 'AN555', because these circuits aren't complete. So, please tell me about other sourses for the interface circuit.


PICSTART ICSP (& microchip annoyance"...)

Started by M Core in Piclist14 years ago 20 replies

Does anyone use a picstart plus to program incircuit flash chips?? I find it quite annoying that PIC doesn't want you to do...

Does anyone use a picstart plus to program incircuit flash chips?? I find it quite annoying that PIC doesn't want you to do it, and instead made another $160US cable for this instead of making a simple buffer board or something for the Picstart +. ATMEL made a


Output port pins and R-M-W

Started by george_cal in Piclist14 years ago 1 reply

I've seen a lot of posts about port pin and R-M-W. I know this has been a big MicroChip blunder from way back, and this matter...

I've seen a lot of posts about port pin and R-M-W. I know this has been a big MicroChip blunder from way back, and this matter keeps coming up all the time. My understanding is as follows: Don't do a bit clear (bcf) or bit set (bsf) instruction on a port register. T


2550 and usb bootloader

Started by Lez in Piclist11 years ago 2 replies

Ok I'm having a little problem.......... i posted on this a while ago but then never had time to follow up, now I have time I cant remember...

Ok I'm having a little problem.......... i posted on this a while ago but then never had time to follow up, now I have time I cant remember most of it..... I'm wanting to put a boot loader into a 2550. I have a programmer, so can do that the non-usb method to start. I have tried one bootloader and I'm getting ''a usb device has been detected'' but when I point XP to the microchip .in...


Can Literals be used with BCF / BSF

Started by Bob Blackwell in Piclist15 years ago 7 replies

I'm really new to PIC programming (Microchip Assembler). As a result I'm having difficulty clearing or setting a computed bit...

I'm really new to PIC programming (Microchip Assembler). As a result I'm having difficulty clearing or setting a computed bit through use of the BSF / BCF command and Literal. I'm beginning to think use of the Literal is the root of my problem but I don't know how to set or clear


MPLAB question

Started by Charles Linquist in Piclist14 years ago 3 replies

I'm using MPLAB 6.5 and a Microchip ICD2. I can successfully program parts using the ICD2 - no problem there. I want to use the...

I'm using MPLAB 6.5 and a Microchip ICD2. I can successfully program parts using the ICD2 - no problem there. I want to use the ICD2 to read back the contents of memory and display them. I have tried two approaches: #1. Leave the ICD2 in "programmer" mod


OrCAD capture libraries for PICs

Started by Nick Alexeev in Piclist13 years ago 3 replies

Colleagues, I've just started using OrCAD (switched from ExpressPCB). I was surprised when I found that neither OrCAD nor Microchip...

Colleagues, I've just started using OrCAD (switched from ExpressPCB). I was surprised when I found that neither OrCAD nor Microchip supplies the libraries for the PIC18 family. Does anyone have libraries for PIC18? Is there a place one the web to look for OrCAD libraries? Thanks! Nick


PIC programmer

Started by Igor Janjatovic in Piclist14 years ago 11 replies

Hello, I'm working on PIC programmer and I need advice. After spending one day on Internet checking all of the existing...

Hello, I'm working on PIC programmer and I need advice. After spending one day on Internet checking all of the existing solutions both hardware and software, and one additional day to read all of those ICSP Manuals from Microchip, and another day to evaluate signals fro


Uregnt help needed(Problems with my oscillator for PIC 16f877a)

Started by Aravind in Piclist15 years ago 3 replies

I have a PIC 16F877A I/P(a sample I got from microchip). I am not able to make it run properly using a 4Mhz resonator. I used 15pF ...

I have a PIC 16F877A I/P(a sample I got from microchip). I am not able to make it run properly using a 4Mhz resonator. I used 15pF capacitors as mentioned in the datasheet and also tried it out with 33pF and 47pF. It blinks properly for some time and then it either stops blinking


Communications programs/bootloader

Started by Charles Linquist in Piclist14 years ago 2 replies

I'm heavily modifying Microchip's bootloader for my own purposes. I thought I would start with that one because it doesn't depend...

I'm heavily modifying Microchip's bootloader for my own purposes. I thought I would start with that one because it doesn't depend on a custom application on the PC "side", it uses Hyperterm to send hex code to the PIC. I'm much better at PIC assembly than Windows apps.


Development Board for Ethernet

Started by wantoniet in Piclist12 years ago

Hi folks! I intend to purchase a development board for ethernet solution and i=20 was targeting Microchip=B4s one PICDEM.net. It seems very...

Hi folks! I intend to purchase a development board for ethernet solution and i=20 was targeting Microchip=B4s one PICDEM.net. It seems very interesting,=20 however i guess there isn=B4t a plenty documentation and support for=20 TCP/IP stack and the learning curve is not so good. Since i want to start with something very straightforward, i=B4ve=20 requested a quotation from RCM2100 module...


pic programmer - close the thread?

Started by ydexter in Piclist14 years ago 16 replies

My God, I asked about a good PIC programmer, not about a stupid pencil. If I would be interested about pencil's theory I wouldn't...

My God, I asked about a good PIC programmer, not about a stupid pencil. If I would be interested about pencil's theory I wouldn't ask about it in a PIC discussion group. The 'problem' is that Microchip has strict rules (like many others chips) about PIC programming. They are n


Micro PSK31 encoder

Started by bergweed in Piclist12 years ago 4 replies

I've adapted a C version of a PSK31 data encoder to Microchip assembly language for the PIC 16F87x micro and made a few improvements along the...

I've adapted a C version of a PSK31 data encoder to Microchip assembly language for the PIC 16F87x micro and made a few improvements along the way. Hams (and others) may find this device or simply how it works, to be useful. Details and the the source code are available here: http://www.ringolake.com/pic_proj/PSK31/pic_psk31.html Mike Berg N0QBH


Re: intro books for pic class?

Started by Paul James E. in Piclist15 years ago 2 replies

Lee, I believe you wrong with the "David Benson" collection of PIC books. They are good for beginner to intermediate. Pluse...

Lee, I believe you wrong with the "David Benson" collection of PIC books. They are good for beginner to intermediate. Pluse he has a book with all sorts of serial comm routines, and one describing how to use the 'In Circuit Debugger' (ICD1) from Microchip. The


XLCD problem

Started by Raul Lucientes in Piclist15 years ago 8 replies

Hi all, Im trying to compile (in C18) an easy LCD test program for the LCD of the demo board "PICDEM2 Plus" using like procesor...

Hi all, Im trying to compile (in C18) an easy LCD test program for the LCD of the demo board "PICDEM2 Plus" using like procesor the 18F258, I had try modify the "xlcd.h" from Microchip, but I cant achive to inizialize the LCD. Please, someone in this


FLASH programming on a PIC18F2220

Started by pakigenius786 in Piclist15 years ago 1 reply

I just wanted help on programming FLASH on this PIC. I read the datasheet on Microchip and i didn't understand when the actual...

I just wanted help on programming FLASH on this PIC. I read the datasheet on Microchip and i didn't understand when the actual write cycle begins in the code( where do u write to FLASH in the code). So I hope somebody can help in this plllllleeeeeeaseeeee!!! email me if you need


My 18F452 Dumb Terminal is done enough to give away.

Started by Chas Douvier in Piclist15 years ago

I don't know where the post the code, and I am not done w/ the schematic. But.. My 18F452 PIC Dumb Terminal is done. (could...

I don't know where the post the code, and I am not done w/ the schematic. But.. My 18F452 PIC Dumb Terminal is done. (could /possibly/ be ported to 18F252 with some rework) Thanks mainly to a lot of microchip code, rstofer, couple other unoted people who gave me some ideas


Should I spend time learning PIC or Motorola 68HC12 ?

Started by roy859 in Piclist14 years ago 11 replies

Which microcontroller should I use for a Robot project ? Motorola 68HC12, Microchip (PIC16F627 or PIC16F84) or any other...

Which microcontroller should I use for a Robot project ? Motorola 68HC12, Microchip (PIC16F627 or PIC16F84) or any other microcontroller ? The PIC micro seems to have plenty of free resources (compilers, programmer diagrams etc.) and documentation. I got the impression t


bootloader

Started by martin de lange in Piclist14 years ago 1 reply

Glacier Anyone ever use the bootloader from Microchip AN851.  Although it should be for a 18f452 the code seems to have been...

Glacier Anyone ever use the bootloader from Microchip AN851.  Although it should be for a 18f452 the code seems to have been emergency modded and left in this state for another processor.  I do want to use


Please help with "cannot fit the section" error.

Started by Basic Poke in Piclist10 years ago 1 reply

I am getting the following error in MPLAB 8.10. Any idea what's going on? I don't even see any uninitialized variables in Main.c. MPLINK...

I am getting the following error in MPLAB 8.10. Any idea what's going on? I don't even see any uninitialized variables in Main.c. MPLINK 4.20, Linker Copyright (c) 2008 Microchip Technology Inc. Error - section '.udata_Main.o' can not fit the section. Section '.udata_Main.o' length=0x00000648 Errors : 1 Thanks BasicPoke ------------------------------------