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Hi all
I need a counter to to count up something
So I use follow code to do this work
unsigned long pdata counter[4]={0,0,0,0};
in the counting place,
counter[0]++;
when run finsih , I print the result
printf(%ld\n",counter[0]};
Maybe I have run to 1000 times ,so counter[0] value
will be to 1000 , but the printf result maybe very
large, like as 92343421;
why ?? how can I make sure to count up correctly??
Thanks a lot
best regards
"My chip is similar to the DS80C320"
What what is the chip, exactly? Manufacturer name, nad Full part number with all suffix and prefix letters/digits?
"Similar" doesn't help - even if there is only one small difference, that could be the one that stops your code from working, couldn't it?!
How about providing a link to the Datasheet.
"1 Can I use 'pdata' specifier in the large memory model??"
Of course you can - the Memory Model simply specifies the default to be used in the absence of a specific memory space specifier.
However, my earlier question still remains: Do you actually understand how PDATA works?
And, are you certain that the PDATA implementation on your hardware is correct & working?
sorry ,my chip is ASIC IP only, So it is datasheet just say it like as DALLAS DS80C320
http://www.keil.com/dd/chipinfo.asp?did=2975&bhcp=1
I didn't know pdata too much , I just studing ^^"""
There is no startup.a51 in my code , do I need to modify this file to use PDATA??
"my chip is ASIC IP only"
In that case, it is very likely that it handles PDATA in a special way - or may not support it at all. If the datasheet doesn't mention it, you need to ask the IP provider specifically about this.
"I didn't know pdata too much"
Don't try to use it until you really understand it, and how (if at all) it is implemented on your target.
Get your code working first using DATA, IDATA, or XDATA.
"There is no startup.a51 in my code , do I need to modify this file to use PDATA??"
Yes!