CCS/TMDX5535EZDSP: DMA problem after bootloader

Part Number: TMDX5535EZDSP

Tool/software: Code Composer Studio

Hello, I'm trying to copy one buffer to another using DMA. 
The program successfully works under the debugger, but after loading from micro SD the DMA does nothing. 
I checked that after configuring DMA and performing DMA_start, 
the DMA registers contain the correct values, but they do not change in the future. 

Can someone point out an error or show a working example with DMA?

Here is my code:

#include "csl_dma.h"
#include "csl_gpio.h"
#include "csl_sysctrl.h"
#include <csl_general.h>

#define SIZE 		1024
#define CSL_RED_LED  	16

extern void VECSTART(void);

/* Declaration of the buffer */
Uint16 		 src[SIZE];
Uint16 		 dst[SIZE];

CSL_DMA_ChannelObj  dmaObj;
CSL_DMA_Handle 	 hDMA;
CSL_DMA_Config 	 dmaConfig;
CSL_GpioObj 		 gpioObj;
GPIO_Handle 		 hGPIO;
CSL_Status  		 status;

CSL_GpioPinConfig   gpioConfig = {
		CSL_RED_LED,
		CSL_GPIO_DIR_OUTPUT,
		CSL_GPIO_TRIG_CLEAR_EDGE
};

void main(void)
{
	//--------------------------------------------------------
    // System init
	//--------------------------------------------------------

	IRQ_globalDisable();				                // Disable interrupts

	CSL_SYSCTRL_REGS->PCGCR1 	= 0;		 // Enable all pereferials
	CSL_SYSCTRL_REGS->PCGCR2 	= 0;

    	CSL_SYSCTRL_REGS->PSRCR = 0x0020;		// Reset all pereferials
    	CSL_SYSCTRL_REGS->PRCR = 0x00BF;
    	while (CSL_SYSCTRL_REGS->PRCR != 0);

	//--------------------------------------------------------
    // GPIO init
	//--------------------------------------------------------

    	// Pinmux for red LED
	SYS_setEBSR(CSL_EBSR_FIELD_PPMODE, CSL_EBSR_PPMODE_1);

	hGPIO = GPIO_open(&gpioObj, &status);		// Init GPIO module
	GPIO_configBit(hGPIO, &gpioConfig);


	//--------------------------------------------------------
    // DMA init
	//--------------------------------------------------------

	dmaConfig.pingPongMode = CSL_DMA_PING_PONG_DISABLE;
	dmaConfig.autoMode     = CSL_DMA_AUTORELOAD_DISABLE;
	dmaConfig.burstLen     = CSL_DMA_TXBURST_8WORD;
	dmaConfig.trigger      = CSL_DMA_SOFTWARE_TRIGGER;
	dmaConfig.dmaEvt       = CSL_DMA_EVT_NONE;
	dmaConfig.dmaInt       = CSL_DMA_INTERRUPT_DISABLE;
	dmaConfig.chanDir      = CSL_DMA_READ;
	dmaConfig.trfType      = CSL_DMA_TRANSFER_MEMORY;
	dmaConfig.dataLen      = SIZE * 2;
	dmaConfig.srcAddr      = (Uint32)src;
	dmaConfig.destAddr     = (Uint32)dst;

    	DMA_init();
    	hDMA = DMA_open(CSL_DMA_CHAN0, &dmaObj, &status);
    	DMA_config(hDMA, &dmaConfig);


	//--------------------------------------------------------
    // Algorithm
	//--------------------------------------------------------

   	DMA_start(hDMA);				 	         // Start transaction
	GPIO_write(hGPIO, CSL_RED_LED, 1);	 // led OFF

    	while(DMA_getStatus (hDMA))			 // Wait until transaction finished
    	{
                        // Here the program remains on boot from SD
    	}

	GPIO_write(hGPIO, CSL_RED_LED, 0);	  //  led ON

	while(1);	 // Here the program remains on loading through the debugger

}