electroaye
Newbie level 1
I'm devoloping some system, conntrolled by a DS89C450. I load the program in the serial way, using a PC with true serial rs232, without problem at a rate of 57600 with 11.0562 crystal.
But for ISP, I need to work with my notebook Aser aspire 5552-3343, Windows7, that hasn't any serial port. So I'm trying with many USB to serial cable adapters, but until now I couldn't connect to loader.
I use the same hardware of maxim and the software is MTK2, last version.
With some adapters I have any activity, some comunication, but some others nothing at all.
Some shows it:
Some other only
Anybody knows the source of this problem?
But for ISP, I need to work with my notebook Aser aspire 5552-3343, Windows7, that hasn't any serial port. So I'm trying with many USB to serial cable adapters, but until now I couldn't connect to loader.
I use the same hardware of maxim and the software is MTK2, last version.
With some adapters I have any activity, some comunication, but some others nothing at all.
Some shows it:
<0D><0A>
<0D>!
!Ô…CS <05>DQ*<015>R9 &)<02> <0A>
II<014><05>BCJ0 T1LP*<015>MR<011>U(J<0A>
<02>ÊCS‚ êDQ*²Rªê9 &) ¨
•IIŠBCJ’0’ T1LP*šMR¨ÊU(ÕJÕ
R<0D><0A>
R<0D>!J0<02>O(2<019> P1<014><01A>-C0LL'P&2<019> 5F<014>2<0D>N<015>J<012><0D>!<02>Unable to establish communication with target.
Check connection to target system or consult help files.
Some other only
Anybody knows the source of this problem?
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