Hi !
I am developing a firmware on the C5501, and trying to implement the Idle mode (using Idle Processor and EMIF)
my problem, is that after weckup from idle the SDRAM contain no more it's actule Program.
and hier you found code i use
///////////////////////////////////////////////////////////////////////
pMMR->ifr0 = 0xFFFF;
pMMR->_ifr1= 0xFFFF;
pEmif->sdc1 |= 0x001; // Active the self refresh mode
pEmif->sdc2 &=0xFDFF; // RFEN=0, to prevent from issuing auto refresh
*(ioport volatile unsigned int *)0x9400 = 0x1000;
*(ioport volatile unsigned int *)0x0001 = 0x09;
asm(" IDLE ");
pEmif->sdc1 &=0xFFFE; //exit the self refresh mode
while ( pEmif->sdc1 & 0x1); // wait untel selt refresh is finish
pEmif->sdc2 |=0x0200 ; // RFEN=1
///////////////////////////////////////////////////////////////////////
what am I doing wrong here? any suggestions to make it work?
thank you in advance,
Amar
