ColdFire/68K Microcontrollers and ProcessorsのトピックRead direct from a Memory address

Read direct from a Memory address

PEGE — Wed, 27 Jul 2011 18:05:06 GMT

Hello i am using a MCF5282,

and i want to buid a loop in C which reads the memorycontent from on adress to another adresse. for example from 0x4000 to 0x8000. in the mcf i have the option to read directly from the sram with RAMBAR_ADDRESS[var] (from 0x20000000).

I am interesetd if someone knew an opportunity to read direct from the whole space of memory for example from 0x0 till 0x7FFFFFFF.

regards Peter

Re: Read direct from a Memory address

angelo_d — Sun, 31 Jul 2011 16:48:53 GMT

Hi PEGE,

i would say this is a simpel C exercise (untested)

/* setup your src and dest */

unsigned long volatile * src=(unsigned long volatile *)(RAMBAR+0x4000);

unsigned long volatile * dst =(unsigned long volatile *)(RAMBAR+ ....) ;

for ( ; src<0x8000 ; )

*dst++ = *src++;

regards,

angelo