Hi,
Does anyone ever make a LX-800 printer driver for AVR ?
I make a code but it didn't work at all.
Here my code :
void InitPrinter(void)
{
//
// Set Data Printer Direction as output
DDRB = 0xFF;
PORTB = 0;
// Set Input BUSY signal
cbi(DDRD,BUSY);
sbi(PORTD,BUSY);
// Set Output INIT
Hi.
I wish to add:
..
3. builtin similarly to IAR '__delay_cycles';
..
This unfinished patch add '__builtin_avr_delay_cycles(long delay)' builtin to
the avr backend. The 'delay' parameter should be constant.
If 'delay' is 1 or 2 then one or two 'nop' instructions is generated.
If
I wish to add:
..
3. builtin similarly to IAR '__delay_cycles';
..
This unfinished patch add '__builtin_avr_delay_cycles(long delay)' builtin
to the avr backend. The 'delay' parameter should be constant.
The patch attached.
Anatoly.Index: gcc/config/avr/avr.md
Anatoly Sokolov schreef:
Hi.
I wish to add:
..
3. builtin similarly to IAR '__delay_cycles';
..
This unfinished patch add '__builtin_avr_delay_cycles(long delay)' builtin to
the avr backend. The 'delay' parameter should be constant.
If 'delay' is 1 or 2 then one or two 'nop'
Andy H schreef:
I think I have found a simple fix.
I changed gcc so that offsets added to assembler symbols are doubled. So
in c when we use foo+2 this gets send to assembler/linker as
gs(foo+4).
This has the effect that offsets or arithmetic are consistently in words
- on a word
Hello,
I have started using AT90CAN128 with WinAVR-20080402.
I am having problem with with optimizatin flags.
1- When I use the following code along with -O1, -O2,-O3, -O4, -Os
and whenI debug it, I do not see any change in PORTA. But when I built
it with -O0, I see the changes in PORTA as I
-Original Message-
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
org] On Behalf Of Ramazan Kerek
Sent: Thursday, April 17, 2008 1:16 AM
To: avr-gcc-list@nongnu.org
Subject: [avr-gcc-list] optimization flags causes problems??
Hello,
I have started using AT90CAN128 with
Ramazan Kerek schreef:
Hello,
I have started using AT90CAN128 with WinAVR-20080402.
I am having problem with with optimizatin flags.
Do not use 20080402, use 20080411.
HTH
Wouter
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Thanks alot.
I will try it.
Best Regards
Ramazan Kerek
-Original Message-
From: Wouter van Gulik [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 17, 2008 11:31 AM
To: Ramazan Kerek
Cc: avr-gcc-list@nongnu.org
Subject: Re: [avr-gcc-list] optimization flags causes problems??
Ramazan
I have installed 20080411 and seen the same problems as I did in
20080402.
Is there anything else I should try?
Best Regards
R. Kerek
-Original Message-
From: Weddington, Eric [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 17, 2008 11:31 AM
To: Ramazan Kerek; avr-gcc-list@nongnu.org
Ramazan Kerek wrote:
I have installed 20080411 and seen the same problems as I did in
20080402.
Is there anything else I should try?
What compiler flags did you use?
If you compile the code you gave, use -O0 and -Os, what is the generated
assembly code?
Incidentally, why are you writing
Please see my comment on your questions below.
Best Regards
R. Kerek
What compiler flags did you use?
- -Wall, -gdwarf-2, -std=gnu99, -O0, -funsigned-char,
-funsigned-bitfields, fpack-struct, -fshort-enums
If you compile the code you gave, use -O0 and -Os, what is the generated
assembly
2008/4/17, Wouter van Gulik [EMAIL PROTECTED]:
For a 2 cycles delays an rjmp can be used. Saves an instruction!
And so on:
3 cycles:
rjmp .
nop
4 cycles:
rjmp .
rjmp .
5 cycles:
rjmp .
rjmp .
nop
6 cycles:
rjmp .
rjmp .
rjmp .
All code portions use no more program
2008/4/17, Oleksandr Redchuk [EMAIL PROTECTED]:
7 to 756
ldi rX, (delay/3)
1:dec rX
brne 1b
is generated. 'ldi' instruction can be removed by optimizer.
and removed ldi instruction execution time (1 cycle) for 7+ cycles
will produce less relative error than for 3..6
Ramazan Kerek wrote:
Please see my comment on your questions below.
Best Regards
R. Kerek
What compiler flags did you use?
- -Wall, -gdwarf-2, -std=gnu99, -O0, -funsigned-char,
-funsigned-bitfields, fpack-struct, -fshort-enums
Try compiling with -mmcu=atmega128. Without an appropriate
Ramazan Kerek [EMAIL PROTECTED] wrote:
2-I am using EEPROM_Write/Read functions in my project. When I
compile the project with -O0 option, and start dtata transfer to
EEPROM memory, I do not see any transfer to EEPROM memory.
As you told the compiler to not optimize, the generated code is
Hi.
2008/4/17, Wouter van Gulik [EMAIL PROTECTED]:
For a 2 cycles delays an rjmp can be used. Saves an instruction!
And so on:
3 cycles:
rjmp .
nop
I shall try to replace 'nop' with 'rjmp .' for two cycle delay. It is
necessary to check that the linker relaxation pass will
-Original Message-
From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
org] On Behalf Of Anatoly Sokolov
Sent: Thursday, April 17, 2008 3:44 PM
To: Oleksandr Redchuk; avr-gcc-list@nongnu.org
Subject: Re: [avr-gcc-list] Add builtins in avr target.
Hi.
2008/4/17, Wouter
On Friday 18 April 2008 12:56, Weddington, Eric wrote:
2008/4/17, Wouter van Gulik [EMAIL PROTECTED]:
For a 2 cycles delays an rjmp can be used. Saves an instruction!
And so on:
3 cycles:
rjmp .
nop
I shall try to replace 'nop' with 'rjmp .' for two cycle
delay.
On Thursday 17 April 2008, Andi wrote:
Hi,
Does anyone ever make a LX-800 printer driver for AVR ?
I make a code but it didn't work at all.
Here my code :
snip code
int main(void)
{
SendStringToPrinter(System Ready !\r\n);
for (;;){
}
}
Anyone can help me ?
This probably
Thank very much for the detailed answer about EEPROM timing and why
using the lib is better chose.
Best Regards
Ramazan Kerek
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On
Behalf Of Joerg Wunsch
Sent: Thursday, April 17, 2008 11:11 PM
To:
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