PIC16877 question about converting to Hex file

olympus123456 · May 22, 2009

I am a beginner and I want to convert the following program to HEX file and then send it to PIC16F877 . Please can anyone guide and help.

Nigel Goodwin · May 22, 2009

Download and install MPLAB from MicroChip, and use either that, or the standalone assembler MPASM to asemble the code.

Joesamuel · May 22, 2009

Try to learn CCS C compiler or MPLab compiler...This can convert the source code to Hex code. It will give you the complete idea....

ericgibbs · May 22, 2009

hi,
The program listing is full of errors, lots of typo's.!

Ive tidied up the program, removed the errors and it now assembles

As suggested goto: Microchip Technology Inc. - a Leading Provider of Microcontroller and Analog Semiconductors and download the MPLAB IDE V8.0

olympus123456 · May 22, 2009

Downloaded MPLAB

I have MPLAB IDE 8.30 and also i got the PICKIT2 . Could u please guide how to compile it in MPLAB, if you could give me the steps for proceeding further, that will be very much appreciated. Thank you for fixing my errors . Please help me further toooo.

ericgibbs said:
hi,
The program listing is full of errors, lots of typo's.!

Ive tidied up the program, removed the errors and it now assembles

As suggested goto: Microchip Technology Inc. - a Leading Provider of Microcontroller and Analog Semiconductors and download the MPLAB IDE V8.0

olympus123456 · May 22, 2009

I have used MPASMWIN , from the MPLAB software i downloaded to convert to HEX file. It is giving me errors :

Error in parameter "and" , "documents and settings"

basically its not reading the source file from my desktop. What should i do to fix it ?

blueroomelectronics · May 22, 2009

Uninstall and reinstall it. Run the wizard when setting up a project.

ericgibbs · May 22, 2009

olympus123456 said:
I have used MPASMWIN , from the MPLAB software i downloaded to convert to HEX file. It is giving me errors :

Error in parameter "and" , "documents and settings"

basically its not reading the source file from my desktop. What should i do to fix it ?

hi,
I have noticed that MPLAB struggles with long file addresses.

Create a newfolder on the 'C' Hard Drive, call it say MyAsm1 and move the asm file from the desktop to that folder.

Also use the MPLAB Project/Project Wizard,, when doing that point the Wizard to MyAsm1 folder and you should be OK.

olympus123456 · May 22, 2009

I did as u said eric , so it created three files one of 1Kb , other of 23 Kb and one has extension .mcs
The problem is there is no hex file found but i could see asm code when i open the 23 kb file as the source file

Also i right clicked the my1.asm file and assemble in the project , and it said "build succeeded " . And there are three new files in the folder that i created .err , .LST, and .o files

How do i proceed from here now.

ericgibbs · May 22, 2009

olympus123456 said:
I did as u said eric , so it created three files one of 1Kb , other of 23 Kb and one has extension .mcs
The problem is there is no hex file found but i could see asm code when i open the 23 kb file as the source file

Also i right clicked the my1.asm file and assemble in the project , and it said "build succeeded " . And there are three new files in the folder that i created .err , .LST, and .o files

How do i proceed from here now.

hi,
By using the 'Build ALL ' option and getting a build succeed you should have a *.hex file.?
To check use 'View'/ Program Memory the hex file should be displayed.

olympus123456 · May 22, 2009

Yes, it is displaying when i went to program memory. Its a relieve though after sooo much of writing the code and you fixing it. Really , patience is the key.

Okay good news got ittttt. Hex file is there. Now, how do i send it to the PIC, I have bought PICKIT2.

ericgibbs · May 22, 2009

olympus123456 said:
Yes, it is displaying when i went to program memory. Its a relieve though after sooo much of writing the code and you fixing it. Really , patience is the key.

Okay good news got ittttt. Hex file is there. Now, how do i send it to the PIC, I have bought PICKIT2.

hi,
Select the PICKIT2 programmer from thr MPLAB Programmer/'select programmer'
also ensure that 'RELEASE' is displayed near the top menu not debug.

Now you are on your own, I dont use that version of programmer,, good luck.

Nigel Goodwin · May 22, 2009

ericgibbs said:
hi,
I have noticed that MPLAB struggles with long file addresses.

Yes, keep short filenames, directory names, and reasonably close to the root directory.

MicroChip seem stuck back in DOS and 16 bit Windows file systems.

olympus123456 · May 22, 2009

Thanks alot Eric. I owe u man.

ericgibbs · May 22, 2009

olympus123456 said:
Thanks alot Eric. I owe u man.

hi,
Your welcome, I would like to know what the program is supposed to do, can you give a run by.

olympus123456 · May 22, 2009

It is a graduation project . It measures the temperature using NTC, ECG using op-amps , Heart beat rate sensor, Saline sensor, Card attendance system . All this in PIC and should be displayed in the computer using RS-232 cable and using front end Visual Basic Interface
(which i have no knowledge of) .
Basically its tooo much of hard work , i need to find photoelectric sensors, and learn VB too. and also serial cabling . yup i have no clue .

ericgibbs · May 22, 2009

olympus123456 said:
It is a graduation project . It measures the temperature using NTC, ECG using op-amps , Heart beat rate sensor, Saline sensor, Card attendance system . All this in PIC and should be displayed in the computer using RS-232 cable and using front end Visual Basic Interface
(which i have no knowledge of) .
Basically its tooo much of hard work , i need to find photoelectric sensors, and learn VB too. and also serial cabling . yup i have no clue .

Thanks,

A word of warning ref the program, the Oshonsoft simulator reported that the UART in the PIC had not been initialised.

There are many freebie PC RS232 text display programs on the web.

olympus123456 · May 22, 2009

ok, how come, i think i had initialized it. How do i fix it. I was told to use 9 pin female rs-232. Does this fix the problem

could u also tell me any names of such programs or links of them.

ericgibbs · May 22, 2009

olympus123456 said:
ok, how come, i think i had initialized it. How do i fix it. I was told to use 9 pin female rs-232. Does this fix the problem

could u also tell me any names of such programs or links of them.

hi,
Add the lines to your code.

Code:

	banksel	INTCON
	bsf	INTCON,PEIE
	bsf	INTCON,GIE

	bsf RCSTA,SPEN
	bsf RCSTA,CREN

EDIT:
**broken link removed**

http://www.softpedia.com/get/Internet/Other-Internet-Related/VPTerminal.shtml

olympus123456 · May 22, 2009

I really appreciate u man. i m sorry if i made u feel angry . i m sorry . but u can understand rite , if u work hard and it doesnt pay offf . it hurts a lot . sorry , yes i will add this part to my code , but shuld i add it the top or end.

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