Flash Magic Forum

In-System Programming Support => LPC9xx/LPC9xxx => Topic started by: Joseph Goldburg on June 07, 2005, 06:33:18 PM

Title: FM PC Serial Control - LC900series
Post by: Joseph Goldburg on June 07, 2005, 06:33:18 PM
Hi FM,

Can you advise how the DTR  RTS and other PC signals operate to create the 3 pulses reset for ISP mode.

I wish to build my board and use the same signals out of the serial port.

An explaination on the Hardware config used in the 3 pulses reset method would be appreciated.


Joseph
Title: Re: FM PC Serial Control - LC900series
Post by: Andy Ayre on June 07, 2005, 08:48:03 PM
You need to copy the circuit from the Keil MCB900 board. There is a link to the help file containing the schematic diagram on the Flash Magic web page.