Flash Magic Forum

In-System Programming Support => LPC9xx/LPC9xxx => Topic started by: dptxp on May 14, 2009, 10:49:29 AM

Title: Programming LPC922/936/915 using Flash Magic
Post by: dptxp on May 14, 2009, 10:49:29 AM
Sorry if I could not make out, but I just want to program these using Flashmagic.

Other than connecting Tx/Rx/Vcc/Gnd (No feed for reset), what pin(s) should be pulled LOW for
getting into ISP mode on power-up ?

dpt
Title: Re: Programming LPC922/936/915 using Flash Magic
Post by: dptxp on May 16, 2009, 03:07:05 AM
OK, I need to pulse the RESET pin to get into ISP mode on power-up.
Now, do I need to do it by adding hardware to to do so OR can use
dtr/rts pin with flashmagic ? The second option does not seem to be
possible unless flashmagic can do it.
Title: Re: Programming LPC922/936/915 using Flash Magic
Post by: Andy Ayre on May 18, 2009, 08:14:56 AM
You can get Flash Magic to generate the three pulses using DTR/RTS and TXD, however you have to build support for this into your hardware. Basically look at the schematic diagram of the Keil MCB900 board on keil.com.

Andy