OK, I see what you guys mean. The uVision IDE try's to be too smart
for it's own good and adds the definitions (somewhere?) for the
standard 8051 by default. So, even though the F0 is a label for a bit
in PSW it still conflicts with what the user manual says.


--- In lpc900_users@yahoogroups.com, Nilesh <inileshce@...> wrote:
>
> Ok let me know which crosss compiler are you using ?
>
> If you are using Keil then by default SFR definition is of 8051
standard SFR definition.
>
> Nilesh
>
> john <j_funk1425@...> wrote:
> I did not include either of those header files. In fact,
the 'LPC2_ISP_8K_V04.a51' compiles without adding any other files to
the project. I compiled 'LPC2_ISP_8K_V04.a51' with no other files so
F0 can't be a definition unless it is in 'LPC2_ISP_8K_V04.a51', but
it is not in that file.
>
>
>
> --- In lpc900_users@yahoogroups.com, Nilesh <inileshce@> wrote:
> >
> > Dear John,
> >
> > FO bit is PSW only. You can also look at header(.h) file or
include(.inc) file
> >
> > In LPC9xx.h ---> sbit F0 = PSW^5;
> >
> > In LPC9xx.INC ---> F0 BIT 0D5H
> >
> >
> > john j_funk1425@ wrote:
> > I don't believe that F0 is the PSW flag bit since I can't find a
> > definition (like: F0 EQU D0) in the file. This would mean the
> > assembler would interpret it as an absolute number of 0xF0.
> > The CRC is good when checking after programming the device. but if
> > the IAP function is used for programming just a few bytes doing a
CRC
> > for the whole sector seems excessive.
> >
> > --- In lpc900_users@yahoogroups.com, "Dr. Vithal N. Kamat"
> > vnk_ad1@ wrote:
> > >
> > > Dear John,
> > > I had a look at the LPC2_ISP_8K_V04.a51, and it is the F0 flag
in
> > > PSW.
> > > You are right that the IAP function returns error when the
Carry
> > > Flag is set, and this flag is not used in the above ISP code.
> > > However, a different approach is used to detect program write
> > > errors - such as by verifying the Block level CRC and global
CRC.
> > > Vithal Kamat
> > >
> > > --- In lpc900_users@yahoogroups.com, "john" <j_funk1425@> wrote:
> > > >
> > > > I noticed that the User manual (UM10116.pdf Rev. 02 — 9 June
2005)
> > > > states that the IAP functions return an error when the Carry
Flag
> > > is
> > > > set. But the ISP boot code from NXP, LPC2_ISP_8K_V04.a51, is
> > > testing
> > > > the bit F0:
> > > > JB F0,ERROR ;check if an error occured
> > > >
> > > > At first I thought it was the F0 flag in PSW but there is no
> > > definition
> > > > for that so the assembler is reading it as the F0 bit which
is
> > bit
> > > zero
> > > > of the B register.
> > > >
> > > > Does anyone know if the user manual is correct or if the ISP
boot
> > > code
> > > > is right? If the ISP boot code is wrong and if it's the same
code
> > > that
> > > > comes from the factory the ISP code would never return
program
> > > write
> > > > errors!
> > > >
> > >
> >
> >
> >
> >
> >
> >
> > ---------------------------------
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> >
>
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>
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