// -----------------------------------------------------------------------------

void ramtest(void)
{
	unsigned long p;
	unsigned char d;
	unsigned char a;


	printf("\n\r** MEMORY TEST **");;

	printf("\n\r Clear Memory..");;

	for(p=0;p<0x100000;p++)		// clear all memory
		SRAM[p]   = 0;


	for(p=0;p<0x100000;p++)		// scan memory
		{

		if((p%0x4000) == 0)
			{

			printf("\n\rCheck 16k Block %lX  ",p);
			if(rx0rdy())	// Abbruch durch Taste
				{
				printf("canceled by user!");
				return;
				}

			}

		if(SRAM[p])
			{
			printf("Address Failure!");
			return;
			}

		a = 1;
		SRAM[p] = a;

		for(d=0;d<8;d++)	// test bits separat
			{
			if(SRAM[p]!=a)
				{
				printf("Data Failure!");
				return;
				}
			
			a <<= 1;		// shift bits
			SRAM[p] <<= 1;	// shift bits
			}

		SRAM[p] = 0xFF;		// markieren
		}


	printf("\n\r>> 1MB RAM Ok! <<");

}


// -----------------------------------------------------------------------------