Dear Developers,
I am facing the following problem on a Linux machine with a LPC2148 BOARD. If you havecome across a similar problem and figured the solution, please let me know:

LPC21ISP#./lpc21isp -detectonly -PHILIPSARM /dev/ttyUSB0 38400 12000
Target: Philips
lpc21isp version 1.78
Synchronizing (ESC to abort)
............................................................................
no answer on '?'

Regards,
babu K Start a New Thread

Hello,

Have you pressed reset / pgm button manually ?
Or should this happen autopmatically (done by lpc21isp) ?

Try adding "-control" to command line option of lpc21isp.

Best regards,

Martin Start a New Thread

The -PHILIPSARM flag is not necessary. By default, lpc21isp wants to talk to a lpc21xx device.

The proper command to PROGRAM the device is:

lpc21isp -control <target>.hex /dev/ttyUSB0 38400 12000

I don't think I have ever used the interactive feature.

One thing that gets me fouled up is minicom. If I have minicom connected to the same serial device as lpc21isp, synchronizing will never happen. I have to close down minicom before invoking lpc21isp and then restart it for console IO.

Richard Start a New Thread

And, of course, P0.14 must be at GND when the processor comes out of reset.

Richard Start a New Thread

>
> And, of course, P0.14 must be at GND when the processor comes out of
> reset.
>
> Richard

If the LPC-2148 is bricked, put a paperclip on the Po.14 and GND pins
(physically on the board,) and hit RST at the same time, or as many
times as it makes you happy. Then remove the paperclip, and reprogram.
Leave all of the jumpers and sliders in stock position. I thought I was
f'ed, and this worked for me.

DON Start a New Thread

Dear Developers,
Thanks for providing me with hints and suggestions.
I verified all aspects and found that a jumper was incorrectly set on my board. Once thatis was correctly set, the lpc21isp utility has recognized the chip and synchronizationalso works.
Regards,
babu K Start a New Thread