LAUNCHXL2-RM57L: RM57 HET -> ADC -> DMA

Hi everyone,

i am trying to figure out how to set up DMA for moving the ADC results to a variable.

Iam using HET2 to generate triggers for the ADC. This works as iam able to read the data from the buffer0.

But then the ADC should trigger a DMA request to move the data to a variable, which it doesnt...

Does somebody has a hint to get this to work?

uint32  adc1=0;

dmaEnable();
g_dmaCTRLPKT1.SADD      = (uint32)(&adcREG1->GxBUF[adcGROUP1].BUF0);  /*0xFFF4C0B0 source address             */
g_dmaCTRLPKT1.DADD      = (uint32)(&adc1); // 0x080015EC              /* destination  address       */
g_dmaCTRLPKT1.CHCTRL    = 0;                    /* channel control            */
g_dmaCTRLPKT1.FRCNT     = 1;                    /* frame count                */
g_dmaCTRLPKT1.ELCNT     = 1;                    /* element count              */
g_dmaCTRLPKT1.ELDOFFSET = 0;                    /* element destination offset */
g_dmaCTRLPKT1.ELSOFFSET = 0;                    /* element destination offset */
g_dmaCTRLPKT1.FRDOFFSET = 0;                    /* frame destination offset   */
g_dmaCTRLPKT1.FRSOFFSET = 0;                    /* frame destination offset   */
g_dmaCTRLPKT1.PORTASGN  = PORTB_READ_PORTA_WRITE;
g_dmaCTRLPKT1.RDSIZE    = ACCESS_16_BIT;         /* read size                  */
g_dmaCTRLPKT1.WRSIZE    = ACCESS_16_BIT;         /* write size                 */
g_dmaCTRLPKT1.TTYPE     = FRAME_TRANSFER;       /* transfer type              */
g_dmaCTRLPKT1.ADDMODERD = ADDR_FIXED;            /* address mode read          */
g_dmaCTRLPKT1.ADDMODEWR = ADDR_FIXED;           /* address mode write         */
g_dmaCTRLPKT1.AUTOINIT  = AUTOINIT_OFF;         /* autoinit        

dmaReqAssign(DMA_CH10, DMA_REQ10);
dmaSetCtrlPacket(DMA_CH10, g_dmaCTRLPKT1);
dmaSetChEnable(DMA_CH10, DMA_HW);

adcInit();
adcREG1->G1DMACR = 0x00000001;
adcStartConversion(adcREG1, adcGROUP1);
hetInit();

One funny thing is that the HWCHnENASet seem to be resetted if the HET2 GCR Register is been written.
THe ChnPnd Register of the DMA is 1 at Channel 10.