Lpc2000

Rick,

The 144 Pin Adapter has 1 Mbyte of RAM which is organized as 256K x 
32 ( Two 16 bit RAM chips). The start address of the external RAM is 
0x81000000 ( Bank 1, EMC )

The following registers must be initialized to enable the 
read/write/execute access.

   /* Connect A2 - A19, WE and CS1 */
   *pinsel2 = 0xC6009E4;
   /* Initialize Bank1 config in EMC, 32 bit with minimum waits */
   *bcfg1 = 0x20000400;

V18A(143), V3A(14),VSSA(139) and VSSA_PLL(138) power supply pins are 
not connected on the adapter. These pins needs to be connected if you 
are using the PLL and ADC.

Philips Apps

--- In lpc2000@yahoogroups.com, "helicopterproject2003" 
<helicopterproject2003@y...> wrote:
> I have a EVBA7 with a 144 pin adapter with a LPC2214 chip. The 
> adapter has 1MB of RAM which I think starts at 0x80000000. I also 
> belived it is hardware straped to startup in 32bit data bus mode.
> 
> I can't seem to write anything into this memory. Even if I use the 
> JTAG and IAR debugger to set any memory location above 0x8000000 it 
> stays set to zero which makes it appear to not be working at all or 
> incorrectly addressed.
> 
> Anyone have any ideas?
> 
> Thanks
> Rick