AMX2 gradient syntax ??

Alexej.Jerschow@ico.unil.ch
Tue, 17 Feb 1998 10:37:20 +0000

Dear Bruker Users,

I have some troubles generating gradients on an AMX2, with SGI, BGU z-gradient
control unit.

For example, for a 2D experiment I issue in the pulse program:

#include <AMX.incl>

...

GRADIENT(11)

this macro is expanded to (from AMX.incl):

label 2u:ngrad
d27
lo to label times l21
2u:ngrad

I have to put into my gradient program:

loop l21 <2d>
{
{ (0) | (0) | (0), sine_5(cnst21) }
}
{ (0) | (0) | (0) }

for this one gradient

This works OK, however, when I try the same in a 1D experiment it does not
work. I tried also to remove the "<2d>", and also to write "(0)+sine_5(cnst21)"
instead of "(0), sine_5(cnst21)", still no gradients are performed at all.

Any hints ?

Alexej Jerschow

-- 
______________________________________________________________________________
Alexej Jerschow


Universite de Lausanne
Section de Chimie BCH 
CH-1015, Lausanne-Dorigny
Switzerland
Tel:    ++41 21 692 3802
Fax:	++41 21 692 4035
E-mail: Alexej.Jerschow@ico.unil.ch
______________________________________________________________________________