Accessing memory in c5535

Hi Srivatsa,

Below is a simple program I wrote for eZdsp5535 that shows how to store data into specific memory/register locations with some simple compare and arithmetic operations:

#include "stdio.h"

#define REG *((unsigned int *)(0x20100))

void main(void) {

	unsigned int v = 0;

	printf("Hello World!\n");

	REG = 0x0000;
	REG = 0xBEEF;
	v = *((unsigned int *)(0x20100));  // Arbitrary memory location in SARAM
	if (v == 0xBEEF) {
		printf("EQUAL\n");
	} else {
		printf("NOT EQUAL\n");
	}
	
	REG += 0x1FBE; // REG = 0xDEAD
	REG -= 0x1FBE; // REG = 0xBEEF

	REG = 0x0000;  // Clear memory

}

In CCS, you can view the memory location 0x20100 in the Memory Browser. I picked an arbitrary memory location in SARAM. Please let me know if this helps or you have other questions.

Regards,

-Jon

Hi Jon,

thanks for the reply.

It answers most of my question, but will this code run on the ezdsp kit and i'm getting an error while building the target, when i use the DMA/USB Controller Byte Address, how do i solve this??

i have no problem while using the CPU BYTE ADDRESS.

Thank you,

Srivatsa