XMC™ Forum Discussions

Hi,

I have a system with different interrupts running, some which sets FreeRTOS events.

It was working fine, until I defined a new PIN interrupt:

void AdcRdyIRQHandler(void)
{
BaseType_t xHigherPriorityTaskWoken; // = SetGroupEventFromISR(xLoadcellTaskEventGroup, evADCReady);
xEventGroupSetBitsFromISR(xLoadcellTaskEventGroup, evADCReady, &xHigherPriorityTaskWoken);
portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
}

If I comment the two FreeRTOS lines in the ADCRdyIRQ (SetBits... and portYIELD...), the problem disappears. 

So I know it has something to do with the FreeRTOS calls, but I'm stuck now.

The failure is shown below:

Thread #1 57005 (Suspended : Signal : SIGTRAP:Trace/breakpoint trap)
VADC0_G3_3_IRQHandler() at startup_XMC4400.S:353 0x8000298
<signal handler called>() at 0xfffffffd
ERU0_3_IRQHandler() at ADC.c:350 0x8000976
0x0

Where ADC.c:350 is dissassembly:

349 portYIELD_FROM_ISR( xHigherPriorityTaskWoken );
08000960: ldr r3, [r7, #4]
08000962: cmp r3, #0
08000964: beq.n 0x8000976 <ERU0_3_IRQHandler+54>
08000966: ldr r3, [pc, #28] ; (0x8000984 <ERU0_3_IRQHandler+68>)
08000968: mov.w r2, #268435456 ; 0x10000000
0800096c: str r2, [r3, #0]
0800096e: dsb sy
08000972: isb sy
350 }
08000976: adds r7, #8
08000978: mov sp, r7
0800097a: pop {r7, pc}
0800097c: ldmia r3, {r2, r3, r5, r6}
0800097e: subs r7, r7, #7
08000980: ldmia r3!, {r6, r7}
08000982: subs r7, r7, #7
08000984: stc 0, cr14, [r4, #-0]

The Registers:

r7 0x20001f90 (Hex)
r8 0xa5a5a5a5 (Hex)
r9 0xa5a5a5a5 (Hex)
r10 0xa5a5a5a5 (Hex)
r11 0xa5a5a5a5 (Hex)
r12 0xa5a5a5a5 (Hex)
sp 0x1fffc780
lr 0x800a6f9 (Hex)
pc 0x8000976 <ERU0_3_IRQHandler+54>
xpsr 0x21000014 (Hex)
msp 0x1fffc760 (Hex)
psp 0x20001f70 (Hex)
primask 0
basepri 0
faultmask 0
control 0

Hello! 

I am working on a project that is evaluating the XMC7000. I saw this app note AN35060 that describes a CAN bootloader for XMC7000 bootloader. It seems quite detailed so I am assuming there is an example or code somewhere that implements this, but I cannot find it. 

Can one of the Infineon team help me identify if there is code for this bootloader available or not?

hi we are getting           undefined reference to `malloc_align'.

code is 

void *th_aligned_malloc_x( size_t size, size_t align, const char *file, int line )

{
void *p;
/* avoid warnings since we are not using these */
file=file;
line=line;
p=malloc_align( size, align); /* file, line );*/

this malloc_align is called at 

#if defined( NO_ALIGNED_ALLOC )
#define malloc_aligned(size, align) malloc(size)
#define free_aligned(base) free(base)
#else
#if _MSC_VER
#define malloc_aligned(size, align) _aligned_malloc(size, align)
#define free_aligned(base) _aligned_free(base)
#else
#define malloc_aligned(size, align) ({void *p; (posix_memalign(&p, align, size) == 0) ? p : NULL;})
#define free_aligned(base) free(base)
#endif