Yahoo Groups archive

Lpc2000

Index last updated: 2026-04-28 23:31 UTC

Thread

FT232 - RTS issues with lpc21isp on Olimex

FT232 - RTS issues with lpc21isp on Olimex

2005-05-21 by lpcarmed

I used LPC21ISP for a while with regular serial port. Now I'm moving
to a USB based com port connection as the Olimex 2214 has a built in
FT232.

It seems LPC21ISP does not control the RTS on the FT232 device, that's
on the Olimex 2214 header board. Other programs do, so I excluded the
theory of a fried FT232.

Does any one has experience with this issue?

Re: FT232 - RTS issues with lpc21isp on Olimex

2005-05-22 by Richard

You cannot use the automatic handling of reset AND P0.14 with that
board, only reset.  You have to remove the "BSL" jumper every time you
download code.  If you are doing that often, it may be worth your time
to add on a simple circuit to have the RTS signal handle P0.14.  See
the RTS_DTR.doc in the files section.

Richard


--- In lpc2000@yahoogroups.com, "lpcarmed" <lpcarmed@g...> wrote:
Show quoted textHide quoted text
> I used LPC21ISP for a while with regular serial port. Now I'm moving
> to a USB based com port connection as the Olimex 2214 has a built in
> FT232.
> 
> It seems LPC21ISP does not control the RTS on the FT232 device, that's
> on the Olimex 2214 header board. Other programs do, so I excluded the
> theory of a fried FT232.
> 
> Does any one has experience with this issue?

Re: FT232 - RTS issues with lpc21isp on Olimex

2005-05-23 by Richard

Also, reset is on DTR, I believe the Philips utility needs it on RTS.

Richard

--- In lpc2000@yahoogroups.com, "Richard" <richas@y...> wrote:
Show quoted textHide quoted text
> You cannot use the automatic handling of reset AND P0.14 with that
> board, only reset.  You have to remove the "BSL" jumper every time you
> download code.  If you are doing that often, it may be worth your time
> to add on a simple circuit to have the RTS signal handle P0.14.  See
> the RTS_DTR.doc in the files section.
> 
> Richard
> 
> 
> --- In lpc2000@yahoogroups.com, "lpcarmed" <lpcarmed@g...> wrote:
> > I used LPC21ISP for a while with regular serial port. Now I'm moving
> > to a USB based com port connection as the Olimex 2214 has a built in
> > FT232.
> > 
> > It seems LPC21ISP does not control the RTS on the FT232 device, that's
> > on the Olimex 2214 header board. Other programs do, so I excluded the
> > theory of a fried FT232.
> > 
> > Does any one has experience with this issue?

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.