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temtronic
Joined: 01 Jul 2010
Posts: 9097
Location: Greensville,Ontario
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 Posted: Thu Dec 27, 2018 7:23 am |
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Why not just use the #ROM preprocessor directive ? It's easy to use and works ! You've only got ONE PIC to put a serial number in......
If this was a production run of say 50-1000 pcs , then you should invest in hardware that will easily 'serialize'.
Jay |
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kmp84
Joined: 02 Feb 2010
Posts: 345
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| Posted: Thu Dec 27, 2018 8:07 am |
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Hi mr."temtronic",
Yes, This is production with more than 1000 devices. |
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temtronic
Joined: 01 Jul 2010
Posts: 9097
Location: Greensville,Ontario
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| Posted: Thu Dec 27, 2018 8:50 am |
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The ICD-U64 is about $100USD, so for 1,000 units, just add 10 cents to each and the programmer is paid for !
If this isn't possible, you need to look at your business plan and costing for the product. When you price in R&D time at $50 an hour( 1/3 what I charge for POC designs) , 2hrs of time wasted trying to get the job done should have been invested in better tools( the hardware..the programmer unit).
All too often, some look at just the upfront cost ($100) and don't see the bigger picture of getting the product to market fast. Getting it to the clien 1 day sooner could save you $1000 easily, if not more.
Jay |
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kmp84
Joined: 02 Feb 2010
Posts: 345
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| Posted: Thu Dec 27, 2018 8:59 am |
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| Mr. "temtronic" I have ICD-U64 unit. |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19215
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| Posted: Thu Dec 27, 2018 9:23 am |
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| kmp84 wrote: | Hello,
I want to ask you is it possible to use "#serialize" directive with mcu without eeprom? Also can be stored serial number with format like this: "ABCD0000001" and auto increment? (ABCD const string + string number)
Thanks! |
Yes. The serial can be written to flash.
It only handles a number. However you could use the string option, and store the ABCD separately. |
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kmp84
Joined: 02 Feb 2010
Posts: 345
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| Posted: Thu Dec 27, 2018 10:09 am |
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Hi mr.Ttelmah,
I have No idea how to do this with help info:
| Code: |
//Retrieves serial number from serials.txt
#serialize(id=serialNumA,listfile="serials.txt")
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And there is no example how to retrieve num from flash! |
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temtronic
Joined: 01 Jul 2010
Posts: 9097
Location: Greensville,Ontario
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| Posted: Thu Dec 27, 2018 10:29 am |
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While I've never used it..
from the CCS manual section #serialize..
//Place string serial number at EEPROM address 0, reserving 2 bytes
#serialize(dataee=0, string=2,next="AB",prompt="Put in Serial number")
It seems to me dataee is where the start of the 'serial number' begins.
You should be able to use the read_eeprom() function (check manual for proper syntax !) to retrieve the PICs serial number. Obviously you'll need to setup proper variables and be sure you don't save the serial number where it overwrites the program !!
Jay |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Thu Dec 27, 2018 1:02 pm |
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| kmp84 wrote: |
And there is no example how to retrieve num from flash! |
CCS has the read_serial() function in the link below, which can read
the serial number from flash or eeprom:
http://www.ccsinfo.com/newsdesk_info.php?newsdesk_id=198
It reads the serial number and writes it into an int32 variable. |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19215
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| Posted: Thu Dec 27, 2018 1:34 pm |
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On reading the number from flash, you don't have to.
All you do is tell serialise the constant variable you want the number
to be put into, and this 'variable', will contain the number. You can use it
just like any other const variable. So there is no retirieval involved.
So in your code, declare a variable:
const int32 serial=0;
Then serialize with:
#serialize(id=serial,file="filename.txt")
'serial' will start with what is specified in 'filename.txt', and count up from
this. |
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kmp84
Joined: 02 Feb 2010
Posts: 345
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| Posted: Fri Dec 28, 2018 3:21 am |
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Hi all,
Very useful directive. Programming speed with ICD U64 is little bit slower (connect, disconnect) but everythings work perfect!
Some example program:
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#include <16F1459.h>
#device *=16
#fuses NOPROTECT,MCLR,PUT,NOWDT
#use delay(int=8MHz, clock=8MHz, act=USB) //USB_FULL,
//#use RS232(DEBUGGER,rcv=PIN_B6,xmit=PIN_B6,stream=STREAM_MONITOR)
#use rs232(baud=9600, xmit=PIN_B7, rcv=PIN_B5, errors)
const char prefix_name[] = "ABCD";
const unsigned int32 serial=0;
#serialize(id=serial,file="serial_num.txt",log="log_file.txt")
void main (void){
delay_ms(100);
printf("\r\n Target Power-Up, Sn:%s%08lu", prefix_name, serial);
for(;;){
// user code;
}
}
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Thank You ALL and The Best Wishes! |
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