TMS570LS0914: BTC interrupt is triggered with invalid measurements

Hey everyone,

we noticed, that our System runns into an error because of the values, that are measured by the DMA.

After an undefined time our microcontroller triggers the BTC interrupt to fast, so that our measured Values have not the defined number of measurements:

In this screenshot we are sending out the number of measurements and the time between each BTC Interrupt (using OS Tick count).

Our configuration of the DMA module are the following:
dmaCtrl->CHCTRL    = 0x0;                  
dmaCtrl->FRCNT     = 10u;                 
dmaCtrl->ELCNT     = 4u;
dmaCtrl->ELDOFFSET = 4u;                   
dmaCtrl->ELSOFFSET = 0u;                   
dmaCtrl->FRDOFFSET = 0x0;                  
dmaCtrl->FRSOFFSET = 0;                    
dmaCtrl->PORTASGN  = 0x4u;                 
dmaCtrl->RDSIZE    = ACCESS_32_BIT;        
dmaCtrl->WRSIZE    = ACCESS_32_BIT;        
dmaCtrl->TTYPE     = FRAME_TRANSFER;       
dmaCtrl->ADDMODERD = ADDR_FIXED;           
dmaCtrl->ADDMODEWR = ADDR_INC1;            
dmaCtrl->AUTOINIT  = AUTOINIT_ON;         

Do you have any supposition, what can cause that behave of the software?

Thank you for your support.

Best Regards,

Tom