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VP-PIC1 PIC Definition Problems Reply  
handsome
kbsguru
I have the VP-PIC1 programmer and have noticed that many of the PIC18 family of MCUs have the wrong memory size stated in the chip selection dialog. This is causing those MCUs to take a very long time to program. I.E. the PIC18F26K20 is listed with a size of F00410H bytes! This should be 10000H. There a many like this. Could you please take a look at this and either suggest a work-around or supply an update with the corrected memory sizes? Many thanks
Go back list [ Posted:2011-03-23 07:07:30 ] Edit Administer top

Re:VP-PIC1 PIC Definition Problems Reply  
beautiful
zq
We set the memory size according to the formal PIC data.Please button the select then the note show"Program Memory:000H--FFFFH
               Data Memory: 000H--3FFH
               ID Locations:200000H--200007H
               Config Word :300000H--30000DH".
Go back list [ Posted:2011-03-23 14:57:45 ] Edit Administer Top

Re:VP-PIC1 PIC Definition Problems Reply  
handsome
kbsguru
hi rq
I think I know what the problem is. The memory sizing is correct for these MCUs, however, data memory is shown as follows:
Data Memory:000H---3FFH  F00000H-F003FFH
Therefore, when I load a hex image, it is loaded into a 15Mb buffer ans then the programmer spends over 3 minutes writing data to non-existent addresses! Is there a reason why the data memory is specified this way?
Regards
Stephen
Go back list [ Posted:2011-03-27 06:59:40 ] Edit Administer Top

Re:VP-PIC1 PIC Definition Problems Reply  
beautiful
zq
According to the formal company"s data,we set the memory size.The programmer spends some time to read the signal,and repeat it again and again.when the programmer reads the signal,it writes data .
Go back list [ Posted:2011-03-28 14:04:29 ] Edit Administer Top
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