hardware for programming P89C51RD2FA

[jackyC]

hello,

J have many problems to use flashmagic to program my

[erik malund]

Where is the MAX232(equivalent)?

It is not the cable, it is the missing RS232 transciever.

Erik

[jackyC]

OK but   I want use just a  RS232 for the RX and TX lines.
What the others lines necessary ?
  VPP with what tension ?

I don't want use the PSEN pin because it is not prevue on my target CI.

thanks.

[erik malund]

>>OK but I want use just a RS232 for the RX and TX lines.<<
what else can it do?

>>VPP with what tension ?<<
+5V DIRECTLY, that should be obvious

>>I don't want use the PSEN pin because it is not prevue on my target CI.<<

Then install NoTouch

http://www.8052.com/users/erikm/

Remember a fresh uC goes in ISP mode on power-up

Erik