Dspic33fj ADC mit DMA

Hallo,

ich hab Probleme bei der Konfigurierung des DMA in Verbindung  meines 
dsPIC33FJ. Wenn ich mein Code kompilieren will kommt immer dieser 
Fehler.


config.c:178: warning: ignoring space attribute applied to automatic 
BufferB
config.c:180: warning: ignoring space attribute applied to automatic 
BufferA
config.c:183: error: Argument to __builtin_dmaoffset()  is not the 
address
   of an object in a dma section;
   the object must not be qualified with any form of index
config.c:184: error: Argument to __builtin_dmaoffset()  is not the 
address
   of an object in a dma section;
   the object must not be qualified with any form of index


die passende Code Zeilen

  struct
  {
  unsigned int Adc1Ch0;
  unsigned int Adc1Ch1;
  } BufferB  __attribute__((space(dma)));

  unsigned int BufferA[2] __attribute__((space(dma)));


DMA0STA  = __builtin_dmaoffset(BufferA);
DMA0STB = __builtin_dmaoffset(BufferB);




weiß nicht wo der Fehler ist. Hoff es kann mir jemand helfen

danke ;)