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Title: Schematic ISP programmer
Post by: ascopie on December 24, 2003, 11:56:38 AM

Hello,

Can somebody email me a propper working ISP programmer schematic, the one described in the help file is not very clear to me. Like, does the pin TXD from PC has to be connected with TXD from the

Title: Re: Schematic ISP programmer
Post by: erik malund on December 30, 2003, 05:39:42 AM

It would be extremely helpful if you mentioned which chip you were using.

Erik

Title: Re: Schematic ISP programmer
Post by: ascopie on January 07, 2004, 11:48:50 AM

Hi,

erh, i'm using the P89C664...

thanks and greetzzz

Title: Re: Schematic ISP programmer
Post by: erik malund on January 08, 2004, 04:42:24 AM

>>ISP programmer schematic<<
for the 664 you need absolutely none. All you need is to connect your PC to the MAX232(equivalent) and off you go. AN461 state which signals you have to manhandle to trick the chip into program mode.

Erik

ps DO NOT rely on a RC reset, use a supervisor.

Title: Re: Schematic ISP programmer
Post by: ascopie on January 08, 2004, 09:57:10 AM

Hi Eric,

Thanks for the information....

greetzzz

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Archive => Old Topics => Topic started by: ascopie on December 24, 2003, 11:56:38 AM