Hello, I use the WinIDEA software and make a new projekt with the lpc2138_uart0_irq projektfiles. I use the external make \winarm\utils\bin\make.exe from the WinARM download files. Now the Problem: the linker doesn' t work in a correct way. The funktions do not have the right adresses. Where mußt I serge the problem? In the crt0.S, LPC2138-ROM.ld or in the makefile? Is it a problem of the linker? Or is it a problem of the address room in the crt0.s file? Thanks for your answers.
Sebastian wrote: > Hello, > I use the WinIDEA software and make a new projekt with the > lpc2138_uart0_irq projektfiles. I use the external make > \winarm\utils\bin\make.exe from the WinARM download files. I have never used this IDE so I can only provide some hints. I suggest to ask the iSystems support. > Now the Problem: > the linker doesn' t work in a correct way. > The funktions do not have the right adresses. > Where mußt I serge the problem? In the crt0.S, LPC2138-ROM.ld or in the > makefile? > Is it a problem of the linker? > Or is it a problem of the address room in the crt0.s file? Can you build the project correctly from the command-line? Are you sure the the correct makefile is used? Is there any output of the build process shown? Which toolchain is used?
Hi,
if I programm the code with your ISP Files it works great.
If I program your code in the IDEA with the external makefile it works
great too.( I do not wrote it before, sorry)
But if I modify the code and Init timer2 and start a Interrupt service
routine, the programm does not work any longer. I mean the problem is by
activating the ISR.
Now I think the problem is anyway in the crt0.s file.
The programm stopped in the last 6 lines in this part of the code:
(undefined, data abort, programm abort)
// Runtime Interrupt Vectors
// -------------------------
Vectors:
b _start // reset - _start
ldr pc,_undf // undefined - _undf
ldr pc,_swi // SWI - _swi
ldr pc,_pabt // program abort - _pabt
ldr pc,_dabt // data abort - _dabt
nop // reserved
ldr pc,[pc,#-0xFF0] // IRQ - read the VIC
ldr pc,_fiq // FIQ - _fiq
#if 0
// Use this group for production
_undf: .word _reset // undefined - _reset
_swi: .word _reset // SWI - _reset
_pabt: .word _reset // program abort - _reset
_dabt: .word _reset // data abort - _reset
_irq: .word _reset // IRQ - _reset
_fiq: .word _reset // FIQ - _reset
#else
// Use this group for development
_undf: .word __undf // undefined
_swi: .word __swi // SWI
_pabt: .word __pabt // program abort
_dabt: .word __dabt // data abort
_irq: .word __irq // IRQ
_fiq: .word __fiq // FIQ
__undf: b . // undefined
__swi: b . // SWI
__pabt: b . // program abort
__dabt: b . // data abort
__irq: b . // IRQ
__fiq: b . // FIQ
#endif
.size _boot, . - _boot
.endfunc
What could it be?
Thanks a lot and a nice weekend.
Sebastian
Sebastian wrote: > if I programm the code with your ISP Files it works great. > If I program your code in the IDEA with the external makefile it works > great too.( I do not wrote it before, sorry) > But if I modify the code and Init timer2 and start a Interrupt service > routine, the programm does not work any longer. I mean the problem is by > activating the ISR. In the default setup of the mentioned example UART0 is used in "interrupt-mode". So if the UART ist working as expected the interrupt setup in "core-level" should be correct. I expect the problem is caused by your modifications and additional functions (timer-init, timer-ISR). Difficult to help without looking at your code. Make sure to follow the scheme of creating an ISR with "exit/entry"-macros and "nacked"-attribut since this is the method used in this example (see uartISR.h/.c armVIC.h/.c). > Now I think the problem is anyway in the crt0.s file. I don't think so but more information on you modifications is needed first. > The programm stopped in the last 6 lines in this part of the code: > (undefined, data abort, programm abort) In which of the "endless loops"? >... Martin Thomas
Hello Martin Thomas,
hier der Code für den Timer:
// Setup für Timer1 Initialisierung
void Setup_Timer1(void)
{
T1IR = 0x000000FF; // Interrupt Register
T1TCR = 0x00000011; // Timer Control Register
T1TCR = 0x00000001;
T1CTCR = 0x00000000; // Count Control Register
T1PR = 0x0000000E; //Timer1 prescale 0x00000800 origin
T1MR0 = 0x03E8; //Timer1 match Reg 0
T1MCR = 0x00000003; //Reset and interrupt match
T1EMR &= 0x00000000;
}
// Setup für Timer Interrupts
void Setup_Timer1_Int(void)
{
VICSoftIntClear = 0x00000020;
VICSoftIntClear = 0x00000000;
VICIntSelect &= ~VIC_BIT(VIC_TIMER1); // IRQ to timer1
VICIntEnable = VIC_BIT(VIC_TIMER1); //Timer0 interrupt
enable
VICVectCntl3 = VIC_ENABLE | VIC_TIMER1; //Interrupt source
5(Timer1)
VICVectAddr3 = (unsigned)Int_Irq_Timer1; // Address of the ISR
}
and here the ISR:
// Timer Interrupt Funktion
void Int_Irq_Timer1(void)
{
ISR_ENTRY(); // armVIC.c
T1IR = 0xFF;
T1IR = 0;
toggle++;
time_counter++; // interrupt counter
VICVectAddr = 0x00000000; //reset VIC
ISR_EXIT(); // armVIC.c // recover registers and return
}
this Code is from an example from winIDEA. there it works without a
problem.
I didn't touch your code in any way.
>> The programm stopped in the last 6 lines in this part of the code:
>> (undefined, data abort, programm abort)
>
> In which of the "endless loops"?
The loop is:
__dabt: b . // data abort
I hope you can help me now.
Hello, I looked again and the programm stopped in several endless loops: In which of the "endless loops"? The loop is: __dabt: b . // data abort __undf: b . // undefined __pabt: b . // program abort MfG Sebastian
add the "naked" function-attribute and give it a try:
void Int_Irq_Timer1(void) __attribute__((naked));
void Int_Irq_Timer1(void)
{
...
Hello Martin Thomas, thanks for your help, now it works. what a little mistake..... Sebastian Thanks a lot!!!! Martin Thomas wrote: > add the "naked" function-attribute and give it a try: > > void Int_Irq_Timer1(void) __attribute__((naked)); > void Int_Irq_Timer1(void) > { > ...
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