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john Goss
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| Handy Firmware Revision trick |
 Posted: Sun Jan 26, 2003 7:20 pm |
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In my code, I store a constant set of charactors near the very end of ROM memory that contains the current rev of code I am working on. When the program resets or turns on, it prints out my current firmware revision on the RS232 port.
I keep this at the top of main() so when I make a change to the code, I quickly update the rev. number too.
| Code: |
// Include header files for functions
#include <16f872.h> // Register definitions for PIC16F872 microcontroller
#include <stdio.h> // Standard I/O - provided by CCS
#include <stdlib.h> // Standard library functions - provided by CCS
#include <string.h> // String Functions - provided by CCS
#include <mod.h> // Port Pin Declarations, Function Prototypes, global variables for this program
//-----------------------------------------------------------------------------
// Do CCS C-Compiler directives
//-----------------------------------------------------------------------------
#use delay(clock=3686400)
#fuses XT,NOWDT,NOPROTECT,NOPUT,NOBROWNOUT, NOLVP
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7)
//=====================================================
// !! UPDATE FIRMWARE REVISION HERE !!
//=====================================================
#org 0x07F0, 0x07FF
const char Revision[] = {"Rev 0.04"};
//=====================================================
//******************************************************
//* *
//* M M AAA IIIII N N *
//* MM MM A A I NN N *
//* M M M AAAAA I N N N *
//* M M A A I N NN *
//* M M A A IIIII N N *
//* *
//*****************************************************
void
main(void)
{
//---------- Occurs once on Reset or Power up ---------------------------------
printf("Reset\n\r");
printf("Rev: \%S\n\r",Revision);
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This message was ported from CCS's old forum
Original Post ID: 11018 |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Re: Handy Firmware Revision trick |
| Posted: Mon Jan 27, 2003 1:49 pm |
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| Quote: | In my code, I store a constant set of charactors near the very end of ROM memory that contains the current rev of code I am working on. When the program resets or turns on, it prints out my current firmware revision on the RS232 port.
I keep this at the top of main() so when I make a change to the code, I quickly update the rev. number too.
//---------- Occurs once on Reset or Power up
printf("Reset\n\r");
printf("Rev: \%S\n\r",Revision);
|
That's a good idea. I came up with a variation that
would make it be more automatic. The code displays
the following text in the terminal window:
Build: 27-Jan-03 11:44:17
| Code: |
#include "c:\program files\picc\devices\16F877.h"
#fuses HS,NOWDT,NOPROTECT,PUT,BROWNOUT, NOLVP
#use Delay(clock=8000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)
// I have the position backed off by 256 bytes from
// the end of ROM, because I'm using a bootloader there.
#org 0x1EE0, 0x1EEF
const char Build_Date[] = __DATE__;
#org 0x1EF0, 0x1EFF
const char Build_Time[] = __TIME__;
//=============================================
main()
{
printf("Build: \%s \%s\n\r", Build_Date, Build_Time);
while(1);
}
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___________________________
This message was ported from CCS's old forum
Original Post ID: 11046
Last edited by PCM programmer on Mon Sep 14, 2009 12:09 pm; edited 1 time in total |
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Neutone
Joined: 08 Sep 2003
Posts: 839
Location: Houston
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| Re: Handy Firmware Revision trick |
| Posted: Mon Jan 27, 2003 4:50 pm |
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Does this statement substitute the actual date of compile or do you have to enter it with each compile?
#org 0x1EE0, 0x1EEF const char Build_Date[] = __DATE__;
___________________________
This message was ported from CCS's old forum
Original Post ID: 11055 |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Re: Handy Firmware Revision trick |
| Posted: Mon Jan 27, 2003 4:57 pm |
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| Quote: | Does this statement substitute the actual date of compile or do you have to enter it with each compile?
#org 0x1EE0, 0x1EEF const char Build_Date[] = __DATE__;
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The compiler gets the date from the operating system
(Win98, etc.) and inserts it as a string, in place of __DATE__.
___________________________
This message was ported from CCS's old forum
Original Post ID: 11056
Last edited by PCM programmer on Mon Sep 14, 2009 12:10 pm; edited 1 time in total |
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Sergio
Guest
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| Re: Handy Firmware Revision trick |
| Posted: Mon Jan 27, 2003 10:10 pm |
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Clever.
Thanks.
:=---------------------------------------------------------
:=
:=That's a good idea. I came up with a variation that
:=would make it be more automatic. The code displays
:=the following text in the terminal window:
:=
:=Build: 27-Jan-03 11:44:17
:=
:=//-------------------------------------
:=#include "c:\program files\picc\devices\16F877.h"
:=#fuses HS,NOWDT,NOPROTECT,PUT,BROWNOUT, NOLVP
:=#use Delay(clock=8000000)
:=#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7, ERRORS)
:=
:=// I have the position backed off by 256 bytes from
:=// the end of ROM, because I'm using a bootloader there.
:=#org 0x1EE0, 0x1EEF
:=const char Build_Date[] = __DATE__;
:=#org 0x1EF0, 0x1EFF
:=const char Build_Time[] = __TIME__;
:=
:=//===============================================
:=
:=main()
:={
:=printf("Build: \%s \%s\n\r", Build_Date, Build_Time);
:=
:=while(1);
:=}
:=
:=
:=
:=
:=--</font>
___________________________
This message was ported from CCS's old forum
Original Post ID: 11063 |
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adrian
Joined: 08 Sep 2003
Posts: 92
Location: Glasgow, UK
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| Re: Handy Firmware Revision trick |
| Posted: Wed Jan 29, 2003 2:21 am |
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:=:=
:=:=Does this statement substitute the actual date of compile or do you have to enter it with each compile?
:=:=
:=:=#org 0x1EE0, 0x1EEF const char Build_Date[] = __DATE__;
:=--------------------------------------------------------
:=
:=The compiler gets the date from the operating system
:=(Win98, etc.) and inserts it as a string, in place of __DATE__.
Which version of the compiler did __TIME__ get included? My lowly v3.061 will do __DATE__ but not __TIME__.
Also what should __DEVICE__ return? I get Error[27] Expression must evaluate to a constant.
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This message was ported from CCS's old forum
Original Post ID: 11088 |
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