On Fri, 20 Feb 2009 08:03:52 +0100 (MET)
j...@uriah.heep.sax.de (Joerg Wunsch) wrote:
Vincent Trouilliez vincent.trouill...@modulonet.fr wrote:
lcd.c:96: error: »asm« undeclared (first use in this function)
That's because you are using a -std setting the prevents GCC from
using its
On Fri, Feb 20, 2009 at 08:00:00AM +0100, Joerg Wunsch wrote:
David Kelly dke...@hiwaay.net wrote:
Strangely the JTAGICE mkII didn't work on the above hardware where the
ICE Cube did. I put a small 50 mA or maybe 100 mA linear regulator on
the 3.3V supply and the mkII drew more power
Hi list,
Like many people I guess, I am using in-lined nop asm statements to
respect the timing of external devices, when toggling their control
lines.
In the case at hand I am driving a text LCD module, and the
Enable line must be pulsed low for 250ns.
void lcd_send_nibble(uint8_t data)
{
...
] How to force GCC to not to remove
nop statements ?
Hi list,
Like many people I guess, I am using in-lined nop asm statements to
respect the timing of external devices, when toggling their control
lines.
snip
Am using avr-gcc 4.3.2
If you are using WinAVR 20081205 then you can use
On Thursday 19 February 2009 19:01, Vincent Trouilliez wrote:
I made a few trials. It appears that up to and including 3 nop
statements, GCC leaves them alone. But if I put 4 of them, it removes
them all !
Are you absolutely sure they are really left out? I assume they are
just not shown in
Trouilliez vincent.trouill...@modulonet.fr wrote:
From: Vincent Trouilliez vincent.trouill...@modulonet.fr
Subject: [avr-gcc-list] How to force GCC to not to remove nop statements ?
To: avr-gcc-list@nongnu.org avr-gcc-list@nongnu.org
Date: Thursday, February 19, 2009, 11:31 PM
Hi list,
Like many
On Thu, 19 Feb 2009 11:14:40 -0700
Weddington, Eric ewedding...@cso.atmel.com wrote:
If you are using WinAVR 20081205 then you can use one of the new builtin
functions:
void __builtin_avr_delay_cycles(unsigned long __n);
Hmm, sweet !
Unfortunately I am on Linux so no WinAVR for me ! ;-)
--
On Thu, 19 Feb 2009 10:22:23 -0800 (PST)
Parthasaradhi Nayani partha_nay...@yahoo.com wrote:
Hi Vincent,
If I understand correctly, the word volatile itself is to tell the compiler
not to ignore the statement. I am not sure if your statement is correct, but
I have used
asm volatile
On Thu, Feb 19, 2009 at 11:14:40AM -0700, Weddington, Eric wrote:
If you are using WinAVR 20081205 then you can use one of the new
builtin functions:
void __builtin_avr_delay_cycles(unsigned long __n);
The prototype can be found in avr/builtins.h, but you shouldn't need
the prototype
] How to force GCC to not to remove
nop statements?
On Thu, Feb 19, 2009 at 11:14:40AM -0700, Weddington, Eric wrote:
If you are using WinAVR 20081205 then you can use one of the new
builtin functions:
void __builtin_avr_delay_cycles(unsigned long __n);
The prototype can be found
On Thu, Feb 19, 2009 at 12:46:50PM -0700, Weddington, Eric wrote:
Hey Joerg, you must be busy! FreeBSD's avr-gcc used to track WinAVR
closer than this. :-)
He has been busy. He's been working on support for the new
ATmega128RFA1 device, which has been added recently to the toolchain.
David Kelly wrote:
Related to another thread: as to why *not* to use an 8051:
Doesn't have avr-gcc.
So true. Althought it's pointless to add to the recent Freaks AVR vs
PIC thread, this is one of the most significant reasons why I prefer
the AVR line. They are inexpensive, the programmers
David Kelly dke...@hiwaay.net wrote:
Strangely the JTAGICE mkII didn't work on the above hardware where the
ICE Cube did. I put a small 50 mA or maybe 100 mA linear regulator on
the 3.3V supply and the mkII drew more power off the target than the
regulator would provide.
The JTAG ICE
Vincent Trouilliez vincent.trouill...@modulonet.fr wrote:
Unfortunately I am on Linux so no WinAVR for me ! ;-)
Once I'm done with updating the FreeBSD toolchain (see the other
part of this thread), Bingo600's Linux build script will also
track that as well.
--
cheers, Jorg
Vincent Trouilliez vincent.trouill...@modulonet.fr wrote:
lcd.c:96: error: »asm« undeclared (first use in this function)
That's because you are using a -std setting the prevents GCC from
using its extensions by a name (asm) that is in the application name
space, like -std=c99. Either use
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